Description

The Data Connect low speed IG202T
Industrial Grade Bell 202 modem is designed
and manufactured for rugged industrial
communication networks. The IG202T
delivers cost effective and reliable 1200bps
asynchronous solutions for point to point and
multipoint connectivity.
The IG202T Industrial Grade Bell 202
modem is ideal for industrial communication
applications including SCADA systems,
RTUs, traffic monitor and control, and
industrial and automation networks. The
IG202T supports RTUs with switch selectable settings and no AT command set required. The IG202T
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 202 standards, which can communicate over a variety of transmission lines.
The IG202T Industrial Grade Bell 202 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 is ideal for
point-to-point and point-to-multipoint polling networks, where reliability and low-network latency are critical
for system performance. With its Auto-RTS mode, the modem can support DTE/RTUs with 3-wire serial
interface (TD, RD, SG) in point-to-point and multi-point polling applications.
The IG202T industrial grade Bell 202 modem has selectable EIA RS-232/V.24 and RS-485 DTE
support. It also features built-in diagnostics for local and remote testing. The configuration and options on
the IG202T is provided by DIP switches and jumpers, eliminating the need for an AT command set. The
IG202T has heavy-duty surge protection at the power supply and leased line inputs. IG202T also uses an
isolated DC to DC power converter for protecting critical DC or battery power systems.
Specifications
Data Rate Support:
Data Speed
0-1200 bps in Bell 202T mode
Data Format
Asynchronous, transparent character format
10 or 11-bit character with 1 or 2 stop bits
RS-485 Interface
Connector: RJ- 11C
Signals: 4-wire full-duplex:
Tx+, TX-, RX+, RXModulation:
Frequency Shift Key (FSK)
Bell 202 Mode: Mark 1200 Hz
Space 2200 Hz
Soft Carrier 900 Hz
Front Panel Indicators & Controls:
RTS, CTS, TD, CD, RD, MR, ALB, DLB
TEST Switch:
Push Button For Analog Loopback, Digital Loopback
Transmission Line Interface:
Leased Line
TELCO voice band 2 or 4 -wire leased lines
Private or metallic circuits 2 or 4 -wire, 19-26 AWG
Connector: 4 pin RJ-11C modular jack
Transmitter output level: 0 to -12 dBm, selectable
AC and DC Power Support:
Standalone: 10-48 VDC: 85-400 VDC, 100-240 VAC
Rack Mount module: Plug-in RM16M modem rack
DTE/RTU Interface:
The modem provides serial ports to support either the RS-232 or RS-485
Interface standards
Mechanical:
Enclosure dimensions:
4.1″(W) x 4.9″(L) x 1.4″(H)
104mm(W) x 125mm(L) x 36mm(H)
Weight: 0.5lbs, without AC power module
RS-232 Interface:
Connector: DB9-F
Signals: RTS, CTS, CD, TD, RD, DSR, SG
Environment:
Temperature:
Operation: -40°C to +85°C
Storage: -40°C to +85°C
Humidity:
Up to 95% non-condensing
Power + Current Consumption:
75 mA @ 12 VDC
18 mA @ 48VDC
Ordering Information
IG202T Standalone AC voltage (100-240 VAC)
IG202T-DC Standalone DC voltage (10-48 VDC)
IG202T-HV Standalone High DC voltage (100-240 VAC, 85-400 VDC)
IG202T-RM RM16M Rack-mount module
IG202T-WMB Wall-mount/panel-mount kit
IG202T-DIN DIN-mount kit