GE IS230SNCIH2A

Product Type: Serial Communication Module (RS-232/RS-485)

Product Introduction:
The IS230SNCIH2A is a serial communication interface module for GE Mark VIe control systems. It provides RS-232 and RS-485 serial ports for connecting legacy devices, modems, RTUs, and third-party equipment that use serial protocols. The module supports Modbus RTU, DF1, and GE SRTP protocols.

Category:
Description

Technical Specifications:

Parameter Value
Number of Ports 2 Ports (RS-232/RS-485 configurable)
Baud Rate 300 to 115200 bps (Configurable)
Data Bits 7 or 8 Bits
Parity None, Even, Odd
Stop Bits 1 or 2 Bits
Protocol Support Modbus RTU Master/Slave, DF1 Slave, GE SRTP
Connector Type DB-9 (RS-232), Terminal Block (RS-485)
Maximum Cable Length (RS-485) 1200 meters (3937 feet)
LED Indicators Power, TX, RX, Error
Operating Temperature 0°C to 55°C (32°F to 131°F)
Power Supply +5V DC from Mark VIe Backplane
Dimensions Approximately 155 mm × 25 mm × 120 mm
Weight Approximately 0.22 kg
Certifications UL 61010-1, CE, FCC Part 15, IEC 61000-6-2

Functional Features:

  • Dual serial ports configurable as RS-232 or RS-485
  • Modbus RTU Master/Slave with full function code support (01-16, 43)
  • DF1 Slave protocol for Allen-Bradley PLC communication
  • GE SRTP (Serial Real-Time Protocol) for GE device integration
  • Configurable baud rate, data format, and parity via software
  • Hardware flow control (RTS/CTS) support
  • Embedded diagnostics with error counters

Structural Features:

  • DB-9 connector for RS-232, screw terminal block for RS-485
  • 4 LED status indicators on front panel
  • Hot-swappable from Mark VIe backplane
  • Standard IS230 module form factor

Applicable Industries:

  • Power Plants (Legacy Equipment Integration)
  • Water/Wastewater Treatment (SCADA RTU Communication)
  • Oil & Gas (Field Device Communication)
  • Manufacturing (PLC-to-DCS Interface)

Installation Requirements:

  • Mount in Mark VIe or Mark V chassis
  • Connect serial cable (null-modem for RS-232, twisted-pair for RS-485)
  • Configure baud rate, parity, and protocol using Mark VIe ToolboxST
  • For RS-485, ensure 120-ohm termination resistors at both ends of bus

Usage Precautions:

  • Maximum RS-485 distance is 1200 meters at 9600 bps; higher baud rates reduce distance
  • Use shielded cable for RS-485 in industrial environments
  • Do not mix RS-232 and RS-485 devices on the same bus without proper converters
  • Ensure correct polarity (A/B) on RS-485 connections
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