Joshua Lin

Multiport Serial Board

Engineer/Customer Service Department

Basic Introduction & Troubleshooting

Agenda

Product Introduction Product Features Troubleshooting

Training Essential

Interface & UART General & Windows & Linux

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In This Section You Will Learn…(Optional)

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Product Introduction

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WHY Multiport Serial Board?

Provide COM ports for host system

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Non-Intelligent MSB Intelligent MSB

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Multiport Serial Board Types

Non-Intelligent(Smartio/Industio)• Up to 8 ports per card x up to 4 cards

in a system.

Intelligent(Intellio) • Dedicated CPU onboard, to decrease

system load.• Up to 32 ports per card x up to 4 cards

in a system.

Non-Intelligent MSBNaming regulation(In General)

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C X – 1 X X X X

Number of ports

Port type 0: RS-232 1: RS-232/422/485 3: RS-422/485

Options L : Low profile T : Wide temperature E : Optical ESD U : Universal PCI

Bus P: PCI & PCIe I: ISA

Non-Intelligent Product Features

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Specification

Baud Rate 50bps to 921.6kbps

Operating System Windows, DOS, Linux, Unix

Flow control XON/XOFF, RTS/CTS(RS-232)

Isolation Protection(optional)

2KV

Wide Temperature(optional)

-40°C~85°C

ESD Protection 15KV

Non-Intelligent MSB

Standard Bracket vs. Low Profile (for small PC)

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Non-Intelligent MSB

Built-in Terminator for RS-422/485• Open: Not using Termination Resistor • Short: Using Termination Resistor

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Troubleshooting

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Troubleshooting

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Host System MSB on board

Hardware Issue Software Issue

Unable to detect MSB by the host

Able to detect MSB, Driver could install on

the system completely

Hardware Troubleshooting

Step1. Plug MSB, but system hangs. Unplug MSB, system works. (Check if the CPU )

Step2 .Check MSB is fixed Step3. Wipe edge-board contact (gold finger) Step4. Change another card

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Software Troubleshooting

Error Code(Windows Device Manager)• Collect the information and contact Moxa

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Software Troubleshooting

Compile error(Linux)• Should install kernel-source in advance

• Still can’t work, please collect the error massage and contact Moxa.

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If install driver successfully, but still can’t work.

What Should I do?

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Use PComm Utility

Test Utilities-PComm

What is Diagnostic• Provide internal and external testing, such as IRQ,

TxD/RxD, UART, CTS/RTS, DTR/DSR, DTR/DCD• Multiport Serial Boards only

When to use Diagnostic• Driver Installation completed, then you want to check if

MSB works functionally

How to use Diagnostic• Connect loopback terminator after COM ports and then

run the diagnostics program.

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How to Use Diagnostics

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2. Choose the board

3. Check the results

1. Click the icon