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ANTAIRA
PCI Card
MSC-202B1
Installation Manual

ANTAIRA MSC-202B1 Installation Manual

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Thank you for purchasing this 2-Port RS422/485 Serial PCI Express

(PCIe) Card. It is a universal add in card that connects to a PC

or server via the PCIe Bus, providing high-speed serial

connectivity. The serial ports are fully compatible with

RS422/485 standard by the bundled Serial COM port drivers.

Each port can be set in any mode (RS485 2-wire, RS485 4-wire

and RS422) and operate simultaneously.

There is an optional model supports Isolation and ESD

protection feature. It provides an ideal solution for most critical

applications.

2-Port R422/485 Serial PCIe Card

w/ Octopus Cable

Installation Guide

1. Introduction

2. Connector Layout

JP4: S1 Mode

Selector

JP2, JP5: S1

RS485 TXD

Control

J2: Factory Use

Only

JP8:

S1 Terminator

Enable/Disable

JP9:

S2 Terminator

Enable/Disable

JP3, JP6: S2

RS485 TXD

Control

JP7: S2 Mode

Selector

J2: DB25M Connector, to DB25F-to-DB9MX2 Octopus Cable

Low Profile Bracket

(optional)

Normal Bracket

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Summary of MSC-202B1

Page 1
1 thank you for purchasing this 2-port rs422/485 serial pci express (pcie) card. It is a universal add in card that connects to a pc or server via the pcie bus, providing high-speed serial connectivity. The serial ports are fully compatible with rs422/485 standard by the bundled serial com port driv...
Page 2: Features:
2-port 422/485 serial pcie card 2 db25f-to-db9mx2 octopus cable: features: provides 2 rs422/485 serial ports over pci express slot provides 2 dsub-9 connectors with the octopus cable fully compliant with pci express base specifications, revision 1.1 supports serial baud rate up to 921.6kbps support ...
Page 3
2-port rs422/485 serial pcie card 3 txd control selection jumper: jp2 for s1, jp3 for s2 1. Mode settings: jp4 (for s1) jp7 (for s2) description rs485 2-wire mode (default) rs485 4-wire mode rs422 mode 2. Termination resistor enable/disable: this jumper enables/disables the 120 ohm termination resis...
Page 4
2-port 422/485 serial pcie card 4 termination resistor enabled 3. Echo or no echo settings: this jumper is to set the transmission data will be echoed back or not. The echo mode is useful for the application program to detect if the rs485 bus has collision. If the echoed data was not equal to the tr...
Page 5: Note:
2-port rs422/485 serial pcie card 5 txd control is automatic (default) txd control is manual (needs to be configured manually in the device manager) 5. Factory use only connectors (j1): this connector is only used for factory production purpose, please don’t install any jumper or cable on it! 1. Tur...
Page 6: Drivers Are In Each
2-port 422/485 serial pcie card 6 please do not let windows auto search the drivers on the cd, it will cause problems because the inf files will be conflict in this case. Instead, please browse to the correct location (folder) manually to make sure the correct drivers are chosen and installed correc...
Page 7
2-port rs422/485 serial pcie card 7 6. Rs422/485 pin assignments and cable wiring check windows version showed in the folder here: xp32 in this example.
Page 8
2-port 422/485 serial pcie card 8 db9-male pin assignment: rs422 cable wiring: rs485 (2-wire) cable wiring: power requirements: 5v dc, 450ma (max) operating temp.: 0 to 55 ° c (32 to 131 ° f ) operating humidity: 5 to 95% rh 7. Environmental specifications db9 (rs422, pcie card) 1 txd- 2 txd+ 3 rxd+...