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ISA Serial Board CI-134

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ISA Serial Board CI-134

Quick Overview

4-Port RS-422/485 ISA Multiport Serial Board

Product Phase Out Notification

[Updated on 26 July 2017]

Due to discontinuation of critical component, Moxa has announced that production of ISA serial boards will cease from 1 January 2018. Moxa does not have a direct replacement of the ISA serial boards. TNS is accepting orders for Moxa ISA products until 15 November 2017. Customers can contact TNS sales for alternative recommendations.

View TNS selection of multiport serial boards

Features and Benefits

- Cost effective ISA multiport serial card with 4 RS-422/485 ports
- RS-485 data direction control with ADDC or by RTS
- 921.6 kbps maximum baudrate for fast data transmission
- 16-byte FIFO and on-chip H/W flow control
- Built-in termination resistors
- Optional Surge protection and electrical isolation available


Moxa CI-134 is an ISA-based 4 port RS422/485 serial card. Compatible with ISA motherboard serial slots, users can integrate up to 4 Moxa CI-134 boards per computer PC. This expands system capability to manage up to 16 serial RS422/485 device. Each of the 4 RS-422/485 ports supports a maximum of 921.6kbps baudrate for fast performance. 

Moxa CI-134 allows serial RS422/485 devices connected over longer distances—up to 1.2 km. User have the flexibility of point-to-point full duplex connections or a half duplex RS-485 multi-drop network. Ensure greater reliability in industrial environments with optional on-board surge protection and electrical isolation.


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TNS Tel  +65 6747 6740

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