Please read all instructions BEFOREBEFORE applying powerapplying power!!

Quick Start Guide

Fiber Optic Bridge Local Interconnect Network (LIN) System

DG-FO-BRIDGE-L System (LIN)

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Dearborn Group Technology is Vehicle Networks!

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20+ Years in of expertise in Vehicle Networks Automotive, Truck & Bus/Heavy Duty Vehicle Networks Global Footprint & Partners Vehicle Network:

Products Custom Products & Solutions Consulting Education & Training Conformance Testing

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Our Vehicle Network Products Dearborn Protocol Adapter

Truck & Bus/HD Vehicles 6+ Models, DLM or OEM SW

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DG Shipping Package Contents

The Fiber-Optic Satellite L Module package includes the following items:

LIN Fiber-Optic Bridge (Black box), including a 12 VDC Universal A/C power adapter LIN Fiber-Optic Satellite Module (nine-volt batteries not included) Three fiber-optic cables with SMA connectors (10 meters in length) CD with the user Manual for the Fiber-Optic Bridge

If you discover that you are missing any part of this package, please contact your Dearborn Group sales representative or the technical support hotline at once.

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http://www.dgtech.com/support/support_guide.html

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Fiber-Optic Bridge Functions

The Fiber-Optic Bridge consists of two major components: 1. The Fiber-Optic Bridge Adapter 2. The Fiber-Optic Satellite Module.

The Bridge Adapter works as a pass-through hardware device. It translates the vehicle network electrical signals from the GRYPHON® tool (or a user’s host test device) into fiber-optic signals.

These fiber-optic signals are used to interface with the Satellite Module placed in the EMC Test Chamber. The fiber-optic signals are then translated back into vehicle network electrical signals by the Satellite Module and used to communicate with the DUT.

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Fiber-Optic L Bridge Example

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Customer Tester DG Gryphon Tool, Vector, ETAS, etc…..

Copper wire

Fiber-Optic Bridge Adapter

F-O Sat L Mod

Fiber- Optic cables

Cable 1

Cable 2

DUT

EMI/EMC Test Chamber

Customer wiring

LIN Bus = Pin 8

V Bat (+) = Pin 4

GND = Pin 5

L copper card connector (DB9) output to external test system LIN Bus = Pin 6 GND = Pin 5

DGDG

DGDG

DB15

Cable 3 Cable 2 Cable 1

Cable 3

Bridge Adapter/Gateway connection example using: • Bridge Adapter (Black Box) • Fiber Optic Satellite “L” module

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LIN Fiber Optic Bridge

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Pin Assignment Warning

Make only the connections to the DB 9 copper card in the Bridge and the DB15 connector in the Satellite Module as indicated in the instructions. Other pins contain signals and voltages and any connection made to them could cause damage to the hardware voiding the warranty.

Pin 6 to LIN bus Cable 1 to Cable 1 Pin 8 to LIN Bus Pin 5 to GND Cable 2 to Cable 2 Pin 4 to V Bat (+)

Cable 3 to Cable 3 Pin 5 to GND

Note: When connecting the fiber optic cables, always connect Cable 1 of the Bridge to Cable 1 of the Satellite, and likewise Cable 2 to Cable 2 and Cable 3 to Cable 3.

Reference note: Older labels for the LIN Satellite Module and Bridge identified the cables as “Rx, Tx and Cmd” vs. “Cable 1, 2 and 3.” This resulted in some confusion regarding the proper connections between the two units and therefore, the designations were changed to Cable 1, Cable 2, and Cable 3.

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CAUTION

Fiber-Optic Cables/Wiring Pin Assignments Gryph Copper Card FO cables from the Satellite Connector (DB 15) To Customer Tester Bridge to the Satellite to the DUT (wired)

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LED Indicators for Configuration The LIN Fiber Optic Bridge has four LEDs that indicate the systThe LIN Fiber Optic Bridge has four LEDs that indicate the system status and configurationem status and configuration..

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Fiber OpticOptic Side (DUT) LED ColorLED Color

LED Meaning Green RedRed OffOff

Led PositionLed Position Battery Low Master Pull-Up

Resistor - OUT Master Pull-Up Resistor - IN LED #1#1

LED #2#2 Slew Rate - Fast Slew Rate - Slow Slew Rate - Normal

Copper Wire Side (HOST) LED ColorLED Color

Green RedRed OffOff Led PositionLed Position

LED Meaning LED #3#3

Master Pull-Up Resistor - IN LED #4#4

Slew Rate - Fast Slew Rate - Slow Slew Rate - Normal

Master Pull-Up Resistor - OUT Battery Low

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L System Bridge Module IMPORTANT NOTE: When connecting the fiber-optic cables, always connect Cable 1 from the Bridge to Rx (Cable 1) on the Satellite, Cable 2 from the Bridge to Tx (Cable 2) on the Satellite Module, and Cable 3 from the Bridge to Cable 3 on the Satellite.)

Power switch for the bridge

This switch is used to apply/disconnect power to the CAN Fiber-Optic Bridge. Power to the unit is applied when the switch is placed in the “up” position.

Power jack

This standard 2.5 mm x 5.5 mm connector (with positive center pin) is used to provide power to the Fiber-Optic Bridge. This power jack is designed to accept an input range between 8 to 18 VDC. The typical operating voltage supplied by the included Universal Power Adapter is approximately 12 VDC.

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Configuring DIP switches for the Host (System-Copper Side)

This DIP switch bank is used to configure the ‘copper’ side of the LIN Bus. There are three slide switches: the up position is “on” and down position is “off.” This switch bank is located on the right end of the Bridge (while viewing the product label normally).

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DIP Switch Selections DIP Switch Selections ((Copper Wire SideCopper Wire Side)) Funtional Configuration

for Host ON OFF Switch 1 Switch 2 Switch 3

ON ON OFF OFF

Slew Rate - Slow

Slew Rate - Fast

Slew Rate - Normal

Master Pull-Up Resistor Switched - IN

Master Pull-Up Resistor Switched - OUT

XX XX

XX XX

XX

XX

XX

XX

Note: The default setting is for all three switches to be in the “off” position when the product is shipped.

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LIN Fiber Optic Bridge - DIP Switch Location

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Important: If the DIP switches are changed, power must be recycled on the LIN Fiber-Optic Bridge to register the changes. The LEDs will flash for several seconds and then stabilize to the selected mode of operation (as shown by the color state of each LED).

DIP Switch Bank (Copper-side)

DIP Switch Bank (Fiber Optic-side)

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Configuring DIP switches for the Satellite (System-Fiber Optic Side)

This DIP switch bank is used to configure the ‘fiber-optic’ side of the LIN Bus. There are three slide switches: the up position is “on” and down position is “off.” This switch bank is located on the left end of the Bridge (while viewing the product label normally).

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DIP Switch Selections DIP Switch Selections ((Fiber Optic SideFiber Optic Side)) Funtional Configuration

for Host ON OFF Switch 1 Switch 2 Switch 3

ON ON OFF OFF

Slew Rate - Slow

Slew Rate - Fast

Slew Rate - Normal

Master Pull-Up Resistor Switched - IN

Master Pull-Up Resistor Switched - OUT

XX XX

XX XX

XX

XX

XX

XX

Note: The default setting is for all three switches to be in the “off” position when the product is shipped.

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Fiber Optic DIP Switch Reminder

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Remember: If the DIP switches are changed on the Bridge module, power must be recycled on the LIN Fiber-Optic Bridge to register the changes. The LEDs will flash for several seconds and then stabilize to the selected mode of operation (as shown by the color state of each LED).

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DIP Switch Selections – Fiber Optic Side Note: The Master pull up resistor is switched IN or OUT depending upon the need for the DUT to have this load included, e.g., a “slave” DUT may need this load switched “IN” while a “master” DUT may not.

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Switching this load resistor Switching this load resistor ““ININ”” when not needed could result in a when not needed could result in a reduction of battery life for the Satellite Modulereduction of battery life for the Satellite Module..

CAUTION

•Note: Changes made to the left DIP switch controls the configuration of the LIN Fiber-Optic Satellite Module. This feature allows you to change the configuration without having to enter the test chamber. The changes are transmitted to the Satellite Module via the fiber optic communications channel (Cable 3).

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Fiber-Optic Satellite L Module

The LIN Fiber-Optic Satellite Module is normally placed inside of the test chamber. It can be used for tests performed outside the chamber as well. The Figure below shows the LIN Fiber-Optic Satellite L Module.

Cable 1 Cable 3 Cable 2

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Switch shown in the ON position (left)

Pin 8 = LIN Bus Pin 4 = V Bat (+) Pin 5 = GND

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L System Satellite Module Pin Assignments: The DUT (Device Under Test) is connected to the Satellite module, using to Pin 8 for LIN Bus signal, Pin 4 for V BAT (+), and Pin 5 for GND.

DO NOT CONNECT ANY OTHER PINS!

Power Switch This switch (marked I/O PWR on the unit) is used to turn power on or off to the Satellite Module. Power is applied to the unit when the switch is moved to the left (I).

Power to Satellite Module

Power is supplied to the Fiber-Optic Satellite Module via two internal nine-volt batteries and may be turned on or off via the toggle switch

Battery compartment

The Fiber-Optic Satellite Module is powered by two nine-volt batteries inserted into the battery compartment and connected as indicated on the label of the module. The cover lid over the batteries is designed to fit tightly and hold them in place.

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Bridge Fuse

If the Bridge module is dead, check the fuse to see if it has opened the circuit. It is located on the top circuit board in a fuse socket near the ON/OFF switch.

The fuse in the bridge is a pretty common type. Littlefuse sells the product under the 'Nanofuse' name. The fuse in the bridge is a slow-blow 1.5A fuse; Digikey part number F2601. Other companies sell compatible fuses.

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DB 15 Connector

V BAT V BAT (+):(+): The purpose of the VBAT connection between the DUT and the Satellite Module is to power the LIN transceivers residing in the Satellite Module. This is necessary in order to power the LIN transceivers, which are not powered by the 9V battery.

ImportantImportant:: All three connections must be made between the Satellite Module and the DUT.

CautionCaution: Making a connection to any of the other pins of the DB 9 or DB15 connector could result in damage to the equipment.

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ATTENTIONATTENTION The DUT cannot be powered from the LIN Satellite Module.

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Power On and Battery Low Indicators for Satellite Module

Power On LED This LED (closest to the power switch) will be turned on when battery power is switched on. It remains on momentarily and then turns off.

Battery Low LED

This LED (farthest from the power switch) will NOT be illuminated during operation unless there is a low battery condition, in which case the LED will be turned on (Red). When this LED is illuminated, it indicates that the enclosed batteries are not providing sufficient power for the proper operation of the module and the batteries should be replaced. Note: Do not attempt to run further tests until the batteries have been replaced.

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Fiber Optic Cables Fiber Optic Cable Specs:

100/140 Micro multimode fiber optic cable with SMA905 connectors

The fiber optic cables contain glass tubes for signal transmission. They are easy to break if bent too far.

DO NOT exceed 25mm bend radius

A quick and easy test of the cable is to shine a light down one end of the cable. If the slightly bent cable transmits that light out the other end, it is not damaged.

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Fiber Optic Satellite Module Isolation

The FO SAT Modules need to be isolated by 50mm. This applies to all satellite modules and is not specific to DG’s.

The reason is the bypass caps typically are placed inside the fiber optic satellite modules from inputs to the Printed Circuit Board/Chassis.

If the case of the fiber optic module:

IS placed directly on the ground plane AND there are bypass caps inside the satellite module from input to chassis Then there is an additional RF path provided to travel.

This can cause different behavior and this is what is being avoided by isolating the fiber optic module by 50mm insulation above the ground plane.

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Dearborn Group Headquarters Vehicle Networks - Farmington Hills, MI

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Contact Information

www.dgtech.com Dearborn Group Headquarters 27007 Hills Tech Court Farmington Hills, MI 48331 (248) 488-2080 (248) 488-2082 fax Dearborn Group Heavy-Duty Truck & Bus Division 2415 Directors Row Suite G Indianapolis, IN 46241 (317) 248-9332 (317) 248-1504 fax

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