2-Port Isolated RS-422/485 Serial

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RS-422/4854 Serial
Serial Ports 2
Interface Isolated RS-422/485
RS-422: TxD+, TxD-, RxD+, RxD, GND
RS-485: Data+, Data, GND
2-wire/4-wire cabling 2-wire: Belden 8941 (2P twisted-pair cable)
4-wire: Belden 8942 (4P twisted-pair cable)
When different cables are used, the transmission distance may change
Transfer distance Max. 1,200m for speed 9.6K bps
Max. 400m for speed 115.2K bps
Max devices 256 devices max. (single RS-485 network without using a repeater)
Controller 16C950 compatible
115200 bps Max.
Data bit: 5, 6, 7, 8
Stop bit: 1, 1.5, 2
Parity: None, Even, Odd, Mark, Space
FIFO: Internal 128 bytes for each port
Self-Tuner Asic inside Yes
Interrupt Shared Interrupt
4KV ESD Protection Yes, Contact for each port
Intra-module Isolation
Field to Logic
Connector Removable 20-pin Terminal Block
Software Support interrupt driven software library, support VxCOM library
Indicators & Bus Type
LED Display 1 x LED as Power Indicator
2 x LED as TxD Indicators
2 x LED as RxD Indicators
Bus Type Parallel
Power Consumption Without Resistors: 1.5W, +/- 5%
With Resistors (1/4 Watt, 120 ohm 5%): 2W, +/- 5%
Physical and Environmental
Dimensions 30mm x 102mm x 115mm
Operating Temperature -25 ~ 75°C
Humidity 5 ~ 95%, non-condensing

 Pin Assignments :