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AIO-168 HardwareManualRevision Date: 28 DEC 2007

AIO-168 Hardware Manual

by Apollo Security Inc.

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Advanced Electronic Controller For Apollo Access Control Systems

W A R N I N GHIGH VOLTAGE, AC MAIN POWER SHOULD ONLY BE CONNECTED BY QUALIFIED,LICENSED ELECTRICIANS. ALL APPLICABLE LAWS AND CODES MUST BE FOLLOWED. IFTHIS PRECAUTION IS NOT OBSERVED, PERSONAL INJURY OR DEATH COULD OCCUR

Power should not be applied to the system until after the installation has been completed. If thisprecaution is not observed, personal injury or death could occur, and the equipment could bedamaged beyond repair.-Verify that the external circuit breaker which supplies power to the device power supply is turned offprior to installation.-Verify that the output voltage of the power supply is within specifications prior to connection to thedevice.

C A U T I O NSeveral important procedures should be followed to prevent electro-static discharge (ESD) damageto sensitive CMOS integrated circuits and modules.

-All transport of electronic components, including completed reader assemblies, should be in staticshield packaging and containers.-Handle all ESD sensitive components at an approved static controlled work station. These workstations consist of a desk mat, floor mat and a ESD wrist strap. Work stations are available fromvarious vendors including the 3M company.

FCC Compliance StatementThis device complies with Part 15 of FCC Rules. Operation is subject to the following two conditions:

1.This device may not cause harmful interference, and 2.This device must accept any interference received, including interference that may cause undesired operation.

This equipment has been tested and found to comply with the limits for a Class A digital device,pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protectionagainst harmful interference when the equipment is operated in a commercial environment. Thisequipment generates, uses, and can radiate radio frequency energy and, if not installed and used inaccordance with the instruction manual, may cause harmful interference to radio communications.Operation of this device in a residential area is likely to cause harmful interference in which case theuser will be required to correct the interference at his/her own expense. The user is advised that anyequipment changes or modifications not expressly approved by the party responsible for compliancewould void the compliance to FCC regulations and therefore, the user's authority to operate theequipment.

IMPORTANT INFORMATION

AIO-168 Hardware ManualI


Table of Contents

Part I Introduction 2

................................................................................................................................... 21 Overview

................................................................................................................................... 22 General Features

................................................................................................................................... 33 Modes Of Operation

......................................................................................................................................................... 3Inputs

......................................................................................................................................................... 3Relays

................................................................................................................................... 44 Command Set

Part II Hardware Layout 6

................................................................................................................................... 61 Terminal Connectors

................................................................................................................................... 92 DIP Switches

......................................................................................................................................................... 9DIP Switch Tables

......................................................................................................................................................... 10DIP Switch Function

................................................................................................................................... 103 Connectors

......................................................................................................................................................... 11Device Port Communication Driver Socket

......................................................................................................................................................... 11ARM-8 Daughter Board Connector

......................................................................................................................................................... 11Additional Connectors

................................................................................................................................... 114 LEDs

......................................................................................................................................................... 11Start Up Mode

......................................................................................................................................................... 12Normal Operation

................................................................................................................................... 125 Firmware

................................................................................................................................... 126 Memory Backup

................................................................................................................................... 127 Additional Installation Information

......................................................................................................................................................... 12ARM-8 Relay Expansion Board

......................................................................................................................................................... 12Mounting Holes

Part III System Wiring 14

................................................................................................................................... 141 Power

......................................................................................................................................................... 14Grounding

.................................................................................................................................................. 14DC Ground

.................................................................................................................................................. 15RS-485 Signal Ground (SG)

.................................................................................................................................................. 15Safety (Earth) Ground

.................................................................................................................................................. 15Grounding System

.................................................................................................................................................. 16Grounding Potential Difference Checks Before Connecting

................................................................................................................................... 162 Communication Connection

......................................................................................................................................................... 16RS-485 Communications Line

................................................................................................................................... 193 Alarm Device Inputs

......................................................................................................................................................... 19Input Supervision (Overview)

......................................................................................................................................................... 21End of Line Terminators

................................................................................................................................... 214 Output Relay Wiring

................................................................................................................................... 225 General Alarm Inputs

IIContents


......................................................................................................................................................... 22Cabinet Tamper

......................................................................................................................................................... 22Power Fault

Part IV Troubleshooting 24

................................................................................................................................... 241 Communications

................................................................................................................................... 242 Alarm Device Inputs

................................................................................................................................... 243 Output relays

Part V Specifications 26

Part VI Supplemental Figures 28

Part VII Table of Figures 30

Part VIII Revision History 32

Index 33

Part

Introduction

I

2Introduction


1 Introduction

An access control system provides a means to replace traditional key and lock systems, whichare easy to defeat because of the ease of copying of keys and use by unauthorized personnel.With electronic access control, the exact areas a person is able to access as well as during whattime is configurable through a central control system. In addition to the power of greater control, ahistorical record is maintained which is useful in the case of a system security breach or for otherpurposes including calculating work time and facility use costing.

1.1 Overview

The AIO-168 Analog Alarm Input Module (P/N 420-168) provides 16 alarm inputs and 8 on-boardrelays. Inputs are DIP switch selectable for UL Grade A analog line supervision or forunsupervised (Grade B). Supervised inputs are monitored for alarm/no alarm and for line faultconditions. The type of line fault (open, short, or ground fault) is reported to the host, which canbe an AAM/AAN controller or an AP-550 Master Reader. The AIO-168 also monitors and reportscabinet tamper and power status.

The host downloads configuration of alarm inputs (normally open or normally closed), alarmmasking data and alarm to relay linkage information. The host requests status reports from theAIO and can control the relay outputs directly.

This module is also available in three configurations. Each differs only in the number of inputsand relays. All other functions on the board are the same.

Available configurations:

· AIO-168 16 Alarm Inputs and 8 Output Relays· AIO-16 16 Alarm inputs· AIO-8 8 Output Relays

Additionally, an expansion module is available to add 8 relays to the AIO:

· ARM-8 8 Output Relays (Daughter board)

Note: The ARM-8 may only be mounted on newer AIO boards that have the proper 20-pinconnector. See Part 2 for location of the connector.

1.2 General Features

· Low power CMOS microprocessor· Plug-in RS-232 or RS-485 host communication modules· 16 UL Grade A supervised alarm inputs· 8 Form C dry contact relay outputs· Cabinet tamper input· Power fault input· 2 diagnostic LEDs· Configuration DIP switches· 12-28 Vdc operation· Flash memory (no proms/roms)· Surface mount technology

3 AIO-168 Hardware Manual


1.3 Modes Of Operation

1.3.1 Inputs

The inputs of the AIO-168 are monitored by the on-board microprocessor many times a second todetect change in state. The inputs can operate in two modes, depending on user configuration:

Supervised (Grade A)- To maintain a secure state, the resistance on the line is measured andcompared with a reference circuit. Likewise, in alarm state the resistance should correspond to asecond reference value. If the resistance is out of tolerance (over or under), the AIO reports thestate as a line fault (open, short, ground). To utilize this mode, End of Line (EOL) resistors arerequired to be installed at the detector devices.

Unsupervised (Grade B)- Two states are monitored by the AIO: Alarm (resistance approachinginfinity) and Secure (resistance is approaching zero).

1.3.2 Relays

The relays of the AIO-168 has the ability to operate in two different modes, which can be usedsimultaneously:

Standard Mode--The relays are controlled by the host controller (e.g. AAN series). In this case,the functioning of the relays depends on proper communication with the controller. Ifcommunication to the controller is lost, the relays will return to ground state from any state theymay have been in.

Linkage Mode--The relays are controlled partially by internal 'linkages' that instruct the relay tochange state immediately upon the change in one or more alarm inputs. This function does notrequire communication with the host controller after the controller has successfully programmedthe configuration.

The following conditions can control the relay state:

· Alarm Inputs 1-16· Power Fault· Tamper Input· Any Zone Fault· Host Communication Loss· Time Zone Control

When any one or a combination of the above conditions exist, one or more relays can beprogrammed to change state. Additionally, each relay can be controlled by a separate time zone. Any of these changes in state can be overridden by the host controller or host software.

4Introduction


1.4 Command Set

The overall function of the AIO is dictated by the commands and responses available. Theavailability of these operations depends on the host software in use.

The total command set of the AIO:

· Device ID Request· Set Date/Time· Set/Delete Time Zone· Set/Delete Holiday Schedule· Configure Alarm Zone· Set Output Relay Pulse Duration· Configure Output Relay Linkage· Alarm Status Report Request· Set/Reset Output Relay· Set Entry/Exit Delay· Set Time Zone for Masking · Set Time Zone for Relay Output· Send Stored Events

The AIO transmits the following messages:

· Device Identification report· Alarm status report· Stored event report· Type of fault

Part

Hardware Layout

II

6Hardware Layout


2 Hardware Layout

1

2

3

4

5

6

7

8

RelayOutputs

Power Input

Tamper input

Power FaultInput

Serial Port

Removable DevicePort Driver Module

DIP Switch

Alarm Inputs 1-8

Alarm Inputs 9-16

ARM-8 Daughter BoardConnector

Figure 2.1 AIO-168 Hardware Layout. Terminal Connectors, DIP Switch, Output Relays,device port driver connection, and other component locations are shown.

2.1 Terminal Connectors

The AIO-168 has 8 terminal blocks for connecting power, alarm inputs, and relay outputconnections. The connection terminals are factory equipped with removable screw-down quickconnectors which are easily removed from the board by firmly grasping the connector and pullingaway from the board. If pliers are used to remove the connectors, they should be of therubber-tipped type. Take care in using any tools near the board not to damage on-board components. The proper location of the quick connectors is outlined in white on the board.



AIO-168 Terminal Connections

Alarm Input ConnectionsPosition Type Label Function

1 Alarm Input Line I1Alarm Input 1

2 Alarm Input Ground G1





























8Hardware Layout




Relay Output Connections57 Common C

Output Relay Connection 158 Normally Open NO

59 Normally Closed NC

60 Common C



63 Common C



66 Common C



69 Common C



72 Common C



75 Common C



78 Common C



AIO-168 General Feature Connections81 Power Input VIN

Power Input Connection82 Ground GND

83 Tamper Input TMP Cabinet Tamper Input (NormallyClosed)84 Tamper Input Return GND



85 Power Fault Input PFLTPower Fault Input (NormallyClosed)86 Power Fault Input

ReturnGND

87 Receive Data (+) TX+

Serial CommunicationConnection

88 Receive Data (-) TX-

89 Transmit Data (+) RX+

90 Transmit Data (-) RX-

91 Signal Ground SG

Table 2.1: AIO-168 Terminal Connections.

2.2 DIP Switches

The AIO-168 has one block of DIP switches, with 8 switches. These switches are used to setvarious configuration options for the interface. It is recommended to power the board down beforemaking any changes in the DIP switch settings as any changes will not take effect unless thepower is cycled.

2.2.1 DIP Switch Tables

Communications Address (SW1)4 5 6 7 8

OFF OFF OFF OFF OFF 0OFF OFF OFF OFF ON 1OFF OFF OFF ON OFF 2OFF OFF OFF ON ON 3OFF OFF ON OFF OFF 4OFF OFF ON OFF ON 5OFF OFF ON ON OFF 6OFF OFF ON ON ON 7OFF ON OFF OFF OFF 8OFF ON OFF OFF ON 9OFF ON OFF ON OFF 10OFF ON OFF ON ON 11OFF ON ON OFF OFF 12OFF ON ON OFF ON 13OFF ON ON ON OFF 14

OFF ON ON ON ON 15ON OFF OFF OFF OFF 16ON OFF OFF OFF ON 17ON OFF OFF ON OFF 18ON OFF OFF ON ON 19ON OFF ON OFF OFF 20ON OFF ON OFF ON 21ON OFF ON ON OFF 22ON OFF ON ON ON 23ON ON OFF OFF OFF 24ON ON OFF OFF ON 25ON ON OFF ON OFF 26ON ON OFF ON ON 27ON ON ON OFF OFF 28ON ON ON OFF ON 29ON ON ON ON OFF 30ON ON ON ON ON 31

10Hardware Layout


Baud Rate

2 3

1200 OFF OFF

2400 OFF ON

4800 ON OFF

9600 ON ON

Input Monitor Mode

1

Supervised OFF

Unsupervised ON

Table 2. 2: AIO-168 DIP Switch Settings

2.2.2 DIP Switch Function

Communications Address—Sets the address that identifies the device on the communicationsline. This number must be unique for each device on a single RS-485 communications line.

Baud Rate—Specifies the baud rate for the serial line of interface. This setting must be thesame for all devices on the communication line connected to this port.

Input Monitor Mode—Specifies whether all inputs on the interface will be monitored bycomparing the resistance value of the input line with the expected value.

ON—In the event of tampering with the input, the interface will report the specific type oferror. (See Part 3.3.1—Input Supervision)OFF—Inputs will operate in standard mode.

Table 2.2.1 : DIP Switch Function

2.3 Connectors

The AIO-168 has several connectors for interfacing with removable components. Take care wheninstalling and removing components in order not to damage pins or sockets. Do not use forcegreater than gentle pressure when installing any components. Refer to figure 2.1 for the exactlocation of these connectors. The connectors are also labeled on the AIO-168 in white letteringon the circuit board.



2.3.1 Device Port Communication Driver Socket

Port Communication Driver Socket: J12

For the functioning of serial communication on the AIO-168, a proper communication driver mustbe connected to the 12-pin socket. The communication driver module can be either ASM-48(RS-485, part number 430-131) or ASM-23 (RS-232, part number 430-132) depending on thetype of communication required on the port. The module should be installed so the long endextends towards the middle of the board and the mounting holes provided on the AIO-168 andASM align so a plastic stand-off can be attached to connect the holes. Alternatively, for networkconfigurations, an ENI-10 or ENI-100 Ethernet Interface Module can be installed in the socket. The module should be installed so that no parts of the ENI-10/100 extend over the edges of theAIO-168. The ENI-10/100 should be properly fastened with plastic screws and standoffs providedwith the ENI-10/100. METAL SCREWS AND STANDOFFS SHOULD NOT BE USED TOMOUNT THE ENI-10/100.

2.3.2 ARM-8 Daughter Board Connector

ARM-8 Daughter Board Connector

Receptacle socket for 20-pin connector for ARM-8 relay expansion board. The ARM-8 should beinstalled so the relays line up directly behind the relays on the AIO-168

Note: This connector is not available on all models.

2.3.3 Additional Connectors

Additional Connectors/Jumpers: J13, J14

These connectors and jumpers are used for factory configuration and should not be modified orconnected in any way unless directed by your Apollo Support representative.

2.4 LEDs

The AIO-168 has 2 LEDs for use in monitoring functioning of panel and for diagnosis of problems.The LEDs function in two modes: startup and normal operation

2.4.1 Start Up Mode

Immediately after powering on the panel, the start-up test will initiate and the results will bedisplayed on the LEDs. If there are no failures, the test will progress. If the panel encounters anerror, it will stop with the failed test and display the LED sequence corresponding to that test. Thetest sequence and the LED codes are:

Test D14 D15

ROM/Firmware ON OFF

RAM OFF ON

Test OK—Loading Config ON ON

Table 2. 4: AIO-168 Start up LED Function

12Hardware Layout


2.4.2 Normal Operation

After initialization and self tests, the LEDs will switch to normal operation and will displayinformation about the panel operation.

Heartbeat (D14)—Shows a constant ‘heartbeat’ (0.2 sec ON, 0.8 sec OFF) to indicate properoperation of the panel and firmware.

Port Status (D15)—Shows activity on the serial port. Normal activity on the ports will beobserved as the LED blinks many times a second or lighted solid, depending on the amount ofactivity.

2.5 Firmware

The operating program for the AIO-168 is stored in re-programmable flash memory. In the eventthat the firmware must be re-installed or updated, no chips need to be replaced on the panel. Thenew program can be loaded from the host via special software. For normal operation it is notnecessary to update the firmware. If this becomes necessary, contact your Apollo Supportrepresentative. Firmware updating should only be done under the recommendation and guidanceof your Apollo Support representative.

2.6 Memory Backup

The AIO-168 is equipped with on-board memory to store configuration information and event data.In case of a break in communication with the host controller, the AIO-168 will store up to 100events (First in, First out) in buffer memory until communication is restored. For each zone atleast one event will be stored. This memory, as well as the real-time clock, is provided with back-up power (for up to 5 days) in the event of primary power failure. Power is supplied by a specialcapacitor-based circuit. Battery replacement is never required.

2.7 Additional Installation Information

2.7.1 ARM-8 Relay Expansion Board

The ARM-8 relay expansion board contains 8 relays to increase the total number of relays for asingle AIO-168 to 16. This unit should be carefully inserted into the 20-pin connector located onthe AIO-168 so that the relay connectors of the ARM-8 line up slightly to the rear of the AIO-168relay connectors. The ARM-8 daughter board receives power through the connector from themain board.Use the provided plastic standoffs and screws to secure the board. Improper use ofmetal screws and standoffs may cause a short or damage to the board.

Note: Not all versions of the AIO have the connector for the ARM-8 available.

2.7.2 Mounting Holes

Four holes are provided for mounting the AIO-168 (see Part 6: Supplemental Figures for scaledrawings showing the exact location of the holes).

Part

System Wiring

III

14System Wiring


3 System Wiring

SPECIAL NOTE: To guard personal safety and avoid damagingequipment it is important to have a full understanding ofelectrical wiring practices and safety. The following sectionsprovide general guidelines relating to the AIO-168, but are not asubstitute for complete training in dealing with electricalsystems!

3.1 Power

Power Connection: TB7

Power is supplied to the AIO-168 by the voltage connection in terminal block 8 (see Part 2.1 forexact locations of terminals). The power connection should be 12-28 VDC. Power consumptionis 350 mA. The AIO-168 is protected from over-current and over-voltage by on-board circuitry.

Take care when selecting a power supply for use with the AIO-168. Most power supplies in themarket today provide good input/output isolation, however those which do not provide isolation (orhave high leakage capacitance), coupled with accidental AC power lines interchange, presentserious ground fault problems for installers. With ground fault, the signal reference betweensubsystems may be 115 VAc (230 VAc) apart. If these subsystems are interconnected, the largepotential difference will cause equipment damage or personal injury. Apollo recommends the useof isolated continuous power supplies only. All Apollo supplied power supply assemblies aretransformer isolated for safety and to minimize ground loop problems.

In the case of over-current, solid-state fuses integrated on the AIO-168 panel will ‘trip’ to protectthe components of the panel. In many cases, the solid-state fuses will reset automatically whennormal current resumes, however it may be necessary to interrupt the supply of power to allowthe fuses to reset.

3.1.1 Grounding

Special care should be taken when grounding the AIO-168 controller and other devices connectedto it via the direct communication lines. Each device must be grounded to provide ESDprotection, personnel safety, and signal reference for devices which communicate with eachother. Grounding the reader provides a good shield against external transients. There are threetypes of circuit grounds in systems using Apollo products: DC ground, RS-485 signal ground, andSafety (Earth) ground.

3.1.1.1 DC Ground

This is typically the minus (-) side of the DC output of the power supply. It is to be connected tothe DC ground input of all devices being powered by one supply. It must not be connected in anyway to any of the 5 RS-485 signals or the AC side of the line including Safety (Earth) ground (oneconnection to Safety (Earth) ground is acceptable, but this connection is usually internal in thehost computer and should not be introduced externally if direct connection is used (RS-232/485)).



3.1.1.2 RS-485 Signal Ground (SG)

This is the 5th wire used for the RS-485 communications. It is used to provide a commonreference between all devices on the line and should only be connected to each of the devices' SG input. The SG wire must not be allowed to touch any other potential, especially earth ground. The shield drain wire of the RS-485 communications cable is commonly used to connect the SGleads together. Usually this wire does not have an electrical insulator. It is important that the SGwire is thoroughly insulated by the installer at all connection points. Improper insulation of thisconductor may allow accidental shorting to earth ground through conduit or other metalliccomponents, causing intermittent communications or equipment damage.

3.1.1.3 Safety (Earth) Ground

Safety ground is part of the AC power system. To avoid ground loop current, there must be onlyONE point at which the safety ground connects to the DC ground.

The RS-485 signal ground must be isolated from the safety ground. This means that the RS-485cable shield drain wire must be insulated at connection points so that it will NOT accidentally shortcircuit to the conduit in instances where the conduit is connected to the safety ground.

Please check the applicable regulations and legislation in your country prior to installing theAIO-168 controller and other Apollo products. In the US, the National Electrical Code, as well asother safety regulations, require that all equipment chassis and/or enclosures be grounded inorder to prevent electrical shock hazards. Each device must have a green wire safety ground. Thefunction of the green wire safety ground is to provide a redundant path for fault currents and toinsure that the circuit breaker will open in the event of a fault. In addition, grounding the enclosureprovides a path for ESD dissipation, thus protecting sensitive electronic devices.

3.1.1.4 Grounding System

A grounding system can be viewed as two subsystems: the DC system and the Ground System.The DC system consists of all interconnected power supply returns, DC distribution wiring, andload devices. The principal function of the DC system is to provide signal reference forcommunication. The Ground System consists of all chassis grounds for power supplies and otherdevices, safety grounds, and AC grounds. Ground connection should be made to avoid groundloop problems.

Ideally, there should be ONLY ONE ground return point in a power supply system. In a systemwith a PC (personal computer), it is likely that the PC already provides the DC Ground connectionto the Ground System (earth ground). Care must be taken NOT to create more groundconnections. In systems with multiple PCs communicating to Apollo Hardware via directconnection, the ground potential must be the same for inter-connection, or some form of isolationmust be provided.

16System Wiring


3.1.1.5 Grounding Potential Difference Checks Before Connecting

Before a device is connected to an RS-485 subsystem, it must be checked for ground fault.Uncorrected ground fault can damage all devices connected to the RS-485 communication line.

To check if there is ground fault for a new unit, follow the steps below:

1. Apply power to all devices already successfully connected to the RS-485 line.

2. Power up the new unit, but DO NOT connect it to the RS-485 line.

3. Connect the signal ground (SG) of the RS-485 line through a 10k limiting resistor.

4. Measure the AC and DC voltage across the resistor. There should NOT be more than 1 volt across the resistor. Otherwise find and clear the fault.

5. Connect the new unit to the RS-485 line only if no ground fault is found.

3.2 Communication Connection

Communication Connection: TB11

The serial connection from the AIO-168 to controller devices is used to collect requests andinformation from the AIO-168 to the controller and for the controller to transmit responses to thesemessages. The AIO-168 does not originate communication on the device communication linesbut waits for a poll from the controller and then establishes communication for configuration. Thefirst communication from the controller establishes the presence and proper functioning of thefield device, and then the configuration is subsequently sent in the following polling cycles. Thispolling is done many times a second, with the exact parameters for polling (intervals, timeout,retries) being set by the host software.

3.2.1 RS-485 Communications Line

The typical connection for field devices (such as the AIO-168) on a device port with an ApolloAAN/AAM controller is through an RS-485 serial communication line. First, for communication tobe possible, the device port must have a communications driver installed in the correspondingsocket (see Part 2.3). For RS-485, the ASM-48 Communications Driver module is required. If it isnecessary to use RS-232 to connect a device to the AAN-100, contact your Apollo technicalsupport representative for more information.

Overview: The RS-485 standard is an electrical interface for multi-point communication on bustransmission lines. It allows high speed data transfer over extended distance (4000 ft, 1219 m).Unlike the RS-232C or current loop interfaces, the RS-485 interface allows multiple devices tocommunicate at high data rates on a single cable, over long distance. Obviously, the RS-485interface provides advantages in cost saving for installation and improved system performance, but it also brings about issues which would not commonly be seen on systems using RS-232C orcurrent loop interfaces.

Bus Configuration: Communication cables for RS-485 should be laid out in a "Bus topology". This means that there should only be two ends to the line and devices should be located directlyalong this line or (as an exception) on short drops coming from the main line (10 feet max.). Thecontroller can be located at any point along the line (See Figure 3.4.1.1). Long stubs (Tconnection) should be avoided because they create discontinuities and degrade signals. DONOT connect devices in ‘star’ configuration. A star connection creates long stubs and causesdifficulty in cable termination. The maximum number of field devices on one RS-485



communications bus is 32. Each field device must have a unique address, and all the devicesmust use the same baud rate, typically 9600bps (both set by the device’s DIP switches, andshould have the same corresponding settings in the host software).

Signal Ground: Using long communication cable with multiple devices often necessitatespowering devices from different power sources. This can result in ground faults, which can causecommunication problems and possible equipment damage. Because the RS-485 interfacecommunicates in the base band and provides no DC isolation, ground fault places devices atdifferent electrical ground levels and causes large ground currents to flow. The possibility ofground fault makes it necessary for careful system planning and installation verification. Thesignal ground (SG) provides a common mode signal reference for the communicating devices. Each device must connect its SG to the cable shield drain wire. Failure to use the SG connectionmay cause communication error. If the environment is known to be electrically noisy, anadditional wire may be used for the signal ground, and the shield can be then grounded as anelectric noise shield.

Termination: Longer communication cable can also create noise and signal reflection problemsif proper cable is not used or if the cable is not correctly terminated. Therefore, RS-485 must beterminated at both ends. Terminating the line provides more reliable communication byminimizing signal reflection and external noise coupling. The factory recommends AC terminationto minimize DC loss. Terminator assemblies with screw terminals (ATM-48, P/N 470-030) arerecommended for installation convenience.

Device Wiring: Typical RS-485 consists of four wires: Positive Receive (R+), Negative Receive(R-), Positive Transmit (T+), Negative Transmit (T-), and Signal Ground (SG). The controller willserve as “Master” on the line and the other field devices (such as the AIO-168) as “Slaves”. Therecan only be one master per line. The transmit lines of the MASTER device are connected to thereceive lines of the SLAVE devices and the receive lines of the MASTER device are connected tothe transmit lines of the SLAVE devices.

18System Wiring


CORRECT

CORRECT

INCORRECT

INCORRECT

Figure 3.4.1.1 RS-485 Bus Configuration. The RS-485 communication line must be laidout in a daisy-chain wiring pattern. Avoid wiring devices in a ‘star’ configuration to avoidreflections and termination problems.

Figure 3.4.1.2 RS-485 Device Connections. The AAN-100 serves as the master on the lineand the field devices are slaves. The receive lines of the master are wired to the transmit lines ofthe slaves, and the receive lines of the slaves are wired to the transmit of the master.



3.3 Alarm Device Inputs

These are normally closed input and should have a jumper installed if not used!

These inputs may be used for many purposes that can be configured in the host software. Thecapabilities will depend on the particular software system in use. Normally these inputs will beused for monitoring external alarm points such as motion detectors or glass break detectors. Theymay also be used as input triggers for Internal Variable and Reaction linkage when used with theAPACS software. For example, a switch contact may be connected to an Alarm input on anAIO-168 and the software can be configured to close a relay on a reader when the switch isdetected open.

3.3.1 Input Supervision (Overview)

Unsupervised, normally closed inputs will have a short circuit (0 ohms) when the circuit is in thesecure state and an open circuit (infinite ohms) when the circuit is in the unsecured state. This is asimple connection that does not require addition of any resistors. The drawback to this type ofconnection (unsupervised) is that if the two wires touch together (either accidentally or intentionalsabotage) the reader will permanently detect the circuit as being in the secure state. Thiseffectively prevents all alarm generation. This situation is not very secure and should not be usedin any situation that requires maximum security. Unsupervised, normally open inputs will have anopen circuit (infinite ohms) when the circuit is in the secure state and a short circuit (0 ohms)when the circuit is in the unsecured state. The same situation will occur as stated above if thewires are cut (permanent secure), resulting in very low security.

The AIO-168 reader interface allows configuration of the inputs to the “supervised” mode. This isdesigned to prevent the security breach that is possible using the “unsupervised” mode mentionedabove. In the supervised state, normally closed inputs will have approximately 300 ohms when inthe circuit is in the secure state and 10K ohms when in the unsecured state. If the wires areshorted together or cut (accidentally or intentionally) the reader will instantly detect this (0 ohm orinfinite ohm) condition and immediately report this as a circuit fault. The reader will not confusethis condition with a valid secure condition. Normally open, supervised inputs should be 10K ohmswhen secure and 300 ohms when unsecured. Either way, security is greatly enhanced. TO TAKEFULL ADVANTAGE OF THE INCREASED SECURITY PROVIDED BY INPUT SUPERVISION,THE END OF LINE TERMINATING RESISTORS SHOULD BE ON THE EXTREME END OF THECABLE, FARTHEST FROM THE READER.

NOTE: ATM-30 end of line resistors (or an equivalent substitute) are designed to work with theAIO-168 supervision values on STANDARD AIO-168 interfaces. The AIO-168 is available byspecial order with custom resistor values. In the case of improper function of the supervision,verify what type of AIO-168 is installed in the system.

20System Wiring


Figure 3.6 Input Supervision. The AIO-168 reader inputs can be configured forSupervised or Unsupervised. End of line resistors must be used in the supervised configuration inorder for the circuits to report the correct state.



3.3.2 End of Line Terminators

Mount the terminator (ATM-30, P/N 470-031) as close as possible to the contact it monitors. Theterminator must not be more than 12 inches (30 cm) from the contact. Alarm loop resistance mustnot exceed 30 ohms.

To insure errors are not caused by increased resistance, use the recommended wiring as notedbelow:

Loop Length Recommended Minimum AWG0 - 500 ft 24 AWG500-1000 ft 22 AWG1000-2000 ft 20 AWG

3.4 Output Relay Wiring

Output Relay Connections: TB5, TB6, TB8, TB9, TB10, TB12, TB13, TB18

The AIO-168 has eight output relays onboard for use with output devices such as sirens, strobelamps, or interface to other systems.

22System Wiring


3.5 General Alarm Inputs

These are normally closed inputs and should have a jumper installed if not used!

The AIO-168 provides two general alarm inputs. The wiring to the input should be made withtwisted pair 24 AWG wire. If these input is not used, it should be ‘jumpered’ using a 1” (25 mm)long piece of wire connecting the two terminals to form a closed circuit. This will prevent an alarmcondition being reported to the host.

3.5.1 Cabinet Tamper

Cabinet Tamper Input: TB19

This input is for connection to a switch located on the cabinet in which the AI0-168 is installed todetect unauthorized access to the panel. This is a normally-closed contact.

3.5.2 Power Fault

Power Fault Input: TB20

This input is designed to be connected to an output on a suitable power supply that will open thecircuit when a problem is detected with the AC power supply and the power supply switches tobattery backup. This is a normally-closed contact.

Part

Troubleshooting

IV

24Troubleshooting


4 Troubleshooting

4.1 Communications

The first thing that must be verified at the card reader is the RS-485 communications. If the readeris unable the communicate to the controller, most other functions will not work. Communicationsshould be verified observing the port activity LED (D15), which will blink when communication isactive (see Part 2.4).

In case of communication trouble:

· Insure the proper device ID has been set with DIP switches and that the proper ID is set in thesoftware.

· Check to insure the proper communications module has been installed: ASM-48 for RS-485,ASM-23 for RS-232

· Check proper voltage on the RS-485 line. If values are out of range, check termination andgrounding problems.

4.2 Alarm Device Inputs

If zones report fault (in supervised mode), check the resistance on the line. Resistance when insecure state must not exceed 30 Ohms. Improper wire gauge may create increased resistanceand therefore false faults on the line.

4.3 Output relays

If the device attached to the relay is producing the opposite result than expected (e.g. siren turnsoff when should turn on), wire the device to the opposite pole than which it is currently connected(NC to NO).

If relays are not switching properly, check the power load which is not to exceed those outlined inPart 5.

Part

Specifications

V

26Specifications


5 Specifications

Power Requirements:AIO-168 +12 to +28 Vdc @ 350mAAIO-16 +12 to +28 Vdc @ 250mAAIO-8 +12 to +28 Vdc @ 250mAARM-8 250mA (power supplied by main board)

Relays:Coil: 12VdcContacts: 2A @ 24Vdc

.5A @ 120VacCabling:RS-485 2 twisted pairs, shielded, 120 ohm

Belden 9842 (or equivalent)4000 ft (1219m) maximum

RS-232 5 conductors, shielded, Belden 9610 (or equivalent)50 ft (15m) maximum

Power Input 1 twisted pair, 18 AWG

Power Fault 1 twisted pair, 24 AWG

Cabinet Tamper1 twisted pair, 24 AWG

Operating Environment:0 - 70 degree C0 - 95% RH, non-condensing

Dimensions:7.5 x 5.5 x 1.0 in(19 x 14 x 2.5 cm)

Part

Supplemental

Figures

VI

28Supplemental Figures


6 Supplemental Figures

Part

Table of Figures

VII

30Table of Figures


7 Table of Figures

Number Description Page2.1 AIO-168 Hardware Layout 6

3.4.1.1 RS-485 Bus Configuration 183.4.1.2 RS-485 Device Connections 183.6/234 Input Supervision 20

209 Alarm Contact Wiring (Normally Closed) 20210 Alarm Contact Wiring (Normally Closed) 21211 Power Fault/Cabinet Tamper Wiring 22215 AIO-168 PCB Layout 28

Part

Revision History

VIII

32Revision History


8 Revision History

REVISION HISTORY

Revision Date Description of changes EditorB 24 MAY 2006 Rewrite and accuracy review R. Burnside

B.1 28 DEC 2007 Update Power consumption (Power, Part 3.1) R. BurnsideB.2 04 APR 2008 Correction of DIP switch number for supervision

modeR. Burnside

AIO-168 Hardware Manual33


Index

- A -AC power system 15

Access Control 2

Alarm Inputs 19, 22

APACS 19

ARM-8 11, 12

ASM-23 11

ASM-48 11, 16

- B -Batteries 26

Battery 12

Baud Rate 10

Broadcast 10

Bus Configuration 16

- C -Cabinet Tamper 22

Capacitor (Memory Backup) 12

Connectors 10

- D -Device Port 11, 16

Dimensions 26

DIP switches 9

- E -Earth 14

End of Line Terminators 3, 21

ENI-10/100 11

Error codes 11

Events 2Storage 12

- F -Firmware 12

- G -Ground 14

DC Groud 14

Faults 14, 15

RS-485 Signal Ground 15

Saftey (Earth) Ground 15

- I -Input Supervision 19

Isolation (Power) 14

- L -LEDs 6, 11, 24

Linkage 3, 19

- M -Memory Backup 12

- P -Power supply 14

- S -Self Test 11

Specifications 26

- T -Terminal Connectors 6

Test sequence 11

Troubleshooting 24

Documents

Apollo AIO-168 Hardware Manual - SourceSecurity.com · are easy to defeat because of the ease of copying of ... The AIO-168 Analog Alarm Input Module ... relays. Inputs are DIP switch