Industrial Grade Bell 202T  - V.23 Modem, Temp Rated
AC and DC power

Bell 202T and ITU-V.23 compatible operation for 1200 bps over Telco lines -
4-wire full-duplex or 2-wire half-duplex over unconditioned or conditioned lines for
point-to-point or multipoint networks -
AC and 10 to 240VDC power
RS232 and RS485 data input

Wide range of operating temperatures from -40 to +85C

AUTO RTS - Transmit Carrier can be triggered off data - view PDF for more info

a great replacement for the older UDS202T and the MOT202T

Selectable EIA RS-232/V.24 and RS-485 DTE support

with AUTO RTS - (when no RTS is available and for RS485)
Transmit Carrier can be triggered off data - view PDF for more info

 

FEATURES
 

  • Data Rate: 0 - 1200 bps

  • Bell 202T and ITU-V.23 compatible operation for 1200 bps over Telco lines

  • 4-wire full-duplex or 2-wire half-duplex over unconditioned or conditioned lines for point-to-point or multipoint networks

  • Selectable EIA RS-232/V.24 and RS-485 DTE support

  • Built-in loopback diagnostics for local and remote testing

  • Configuration options provided by DIP switches and jumpers (no AT command set required)

  • Heavy-duty surge protection provided at power supply and leased line interface

  • Supports wide range of AC & DC power supply options - 90 to 265 VAC or 100 to 400 VDC and 10 to 60VDC

  • Isolated DC-to-DC converter for protecting critical DC or battery power system

  • Wide range of operating temperatures from -40 to +85C

  • AUTO RTS - Transmit Carrier can be triggered off data - view PDF for more info

 

modem comes with 9 pin DB9 to 25pin DB25 adaptor

 


click enlarged view


view PDF sheet

view PDF manual

view Wall Mount Kit

view DIN Rail Mount Kit

Mounting Kit instructions

Industrial Grade Bell 202T  and or V.23 Modem

The IG-202T and IG-V23 modems are designed and manufactured for rugged industrial communication networks. Both modems deliver cost-effective and reliable 1200 bps asynchronous solutions for point-to-point and multipoint connectivity. The IG202T/V23 modems are ideal for industrial communication applications including SCADA systems, RTUs, traffic monitor and control, and industrial automation networks. The IG202T/V23 supports RTUs with a user-selectable EIA RS-232 or RS-485 serial port at speeds up to 1200 bps. The IG202T/V23 modem is designed to operate over 4-wire full-duplex or 2-wire half-duplex over unconditioned leased lines or private metallic circuits. For optimum performance, the modem employs FSK modulations to be compatible with Bell 202T and ITU-V23 standards, which can communicate over a variety of transmission lines. The IG202T/V23 modem can operate over a wide range of AC or DC power supply voltages and temperatures. With proven reliability and ease of installation, the IG202T/V23 is ideal for point-to-point and point-to-multipoint polling networks, where reliability and low-network latency are critical for system performance.

The Auto RTS feature of the modem is to support the communication protocols between a DTE (data terminal equipment, i.e. RTU) and a DCE (data communication equipment, i.e. modems) when the Request-To-Send (RTS) control signal is absent from RTU when operating in a multi-point polling environment. AUTO RTS - Transmit Carrier can be triggered off data - view PDF for more info

 

ORDERING PART NUMBERS
modem comes with 9 pin DB9 to 25pin DB25 adaptor

  • IG202T        Standalone, Bell202T, 4W/2W Leased Line modem, with a 100-264VAC
                             external power module
  • IG202T-LV Standalone, Bell 202T, 4W/2W Leased Line modem, for 10-60VDC power input
  • IG202T-HV Standalone, Bell 202T, 4W/2W Leased Line modem, with a 100-264VAC / 85-400VDC
                             external power module
    • power input
  • IG202T-RM Rack mount card for the RM16M rack
  • IGV23 -        Standalone, V.23, 4W/2W Leased Line modem, w/100-264VAC external power module
  • IGV23-LV    Standalone, V.23, 4W/2W Leased Line modem, for 10-60VDC power input
  • IGV23-HV  Standalone, V.23 4W/2W Leased Line modem, with a 100-264VAC / 85-400VDC
                             external power module
    • power input

Spec sheet 

(please note power should read 90 to 264VAC and 115 to 400VDC) 
modem comes with 9 pin DB9 to 25pin DB25 adaptor

 

  • PLEASE NOTE - THE MODEM COMES WITH  A 9 PIN DB9 TO A 25 PIN DB25 ADAPTOR FOR WHEN THE APPLICATION REQUIRES A 25 PIN CONNECTOR

ORDERING PART NUMBERS

  • IG202T        Standalone, Bell202T, 4W/2W Leased Line modem, w/100-264VAC
  • IG202TDC Standalone, Bell 202T, 4W/2W Leased Line modem, for 10-48VDC power input
    •
  • IG202THV 115-264VAC and 115 to 400VDC
  • IG202TRM Rack mount card for the RM16M rack
  • IGV23 -        Standalone, V.23, 4W/2W Leased Line modem, w/100-264VAC external power module
  • IGV23DC    Standalone, V.23, 4W/2W Leased Line modem, for 10-60VDC power input
    •

 

Chassis ground and signal ground of the modem are not connected. 

Chassis ground is only connected through the shell case of the DB-9F connector to the DTE.

This ground is used only for surge voltage returns. 

The AC neutral is not connected to the modem’s chassis ground.

 

 

ARC ELECTRONICS
 301-924-7400 EXT 25

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 arc@arcelect.com