202T Leased Line Modem

202T Private Line Modem

Private Line FSK Analog Asynchronous Modem

Full duplex Bell 202t modem to 1200 bps

Asynchronous RS-232 modem for leased lines

4-wire, full duplex or 2-wire, half-duplex private line application

900 Hz soft carrier turn off

Anti-streaming

Standalone or rack mount

High stability transmit and receive frequency

Ruggedized for full industrial temperature range

Quiet multi-layer board

Often used over non-traditional audio paths
Fully compatible with other 202T's

New design, current production manufactured in the USA

FEATURES
DESCRIPTION
SPECIFICATIONS

General
Indicators
Switches
Download a PDF Manual
Physical and Electrical

HOW TO ORDER

FEATURES

Full duplex to 1200 bps
Asynchronous RS-232
4-wire, full duplex or 2-wire, half-duplex line application
900 Hz soft carrier turn off
Anti-streaming
Standalone or rack mount
High stability transmit and receive frequency
Ruggedized for full temperature range
Quiet multi-layer board
Fully compatible with other 202T's

The 202T modem operates at 0 to1200 bps asynchronous, with FSK modulation. It uses the latest DSP modem circuitry to insure excellent performance and future availability. It has 900 hz soft carrier turn off for multidrop and an anti-streaming option. 7.25" half card size, standalone and custom OEM board configurations are available. The pc card version uses the internal PC ISA bus only for power from the pc bus. The PC card fits into a 20 slot rack mount chassis that is only 7" high. The phone line connector is an RJ-11 for 4-wire leased line operation or 2-wire half duplex leased line operation. Transmit is on positions 2 and 3, receive 1 and 4 of the 4 position RJ-11connector for 4-wire, on positions 2&3 for two wire. The modem has a push/push switch for local digital loop on or off. The loopback switch is located on the rear of the unit, next to the DB-25 terminal connector.

SPECIFICATIONS

General

Modem

Analog full duplex, 4-wire, 600 ohm balanced, Frequency Shift Keying
Analog half duplex, 2-wire, 600 ohm balanced, Frequency Shift keying
Mark-1200 hertz, Space-2200 hertz, Speed 0 to 1200 bps
900 Hertz Soft Carrier Turn Off for multidrop operation
Transmit level control 0 dBm or -16 dBm
Receive level 0 dBm to -42 dBm
Carrier Turn-on time less than 12 msec
Will drive up to 30 Km of cable depending upon wire gauge
Switched carrier or constant carrier operation (RTS forced on or terminal controlled)

Digital Interface

RS-232, DB-25S
Signals are Tx, Rx, RTS, CTS, DSR, DCD
RTS/CTS delay is 12 or 20 ms in switched carrier mode or RTS can be forced on
Rx data is clamped to mark when no receive carrier detect is present.
202T Modem - FSK Analog Modem, Async

Controls and Indicators

Power, Tx Data, Rx Data, RTS, CTS, DCD, Test
Digital loop via rear panel switch and front DIP switch
Controlled carrier (with RTS/CTS delay) or constant carrier with RTS/CTS on
anti-streaming option (8 seconds), Loopback or normal operation
Transmit level - 0 db or -16db, 900 Hz Soft Carrier turn off On or Off

Physical and Electrical

-40C to +70C operating temperature range, PC ISA bus format or standalone version,
PC bus for power and ground only, standalone unit uses 110V wall mount supply
Half size PC card, 7.25"D x 4.25"H
Stand alone: 5.5" W x 7.375"D x 1.5" high, 110VAC wall mount supply (9VDC, 500 ma)
Other DC power supply voltages, 12, 24, -48, 125 VDC, 220VAC available on special order
A 1.5" x 19" fixture available to rackmount up to 3 standalones in a single 1U height
20 slot rack chassis on slide guides is 19"W x 16"D x 7"H, 110VAC 250 W power supply

Switches

OPTION SWITCH SETTINGS

Switch	Name	DOWN	UP
1	Reset	Off	Toggle Up/Down
2	Anti-streaming	Off	On
3	RTS/CTS delay	12 ms	20 ms
4	RTS control	Forced on	Controlled by Terminal
5	Soft Carrier Turnoff	Off	On
6	Reserved	-	-
7	Transmit Level	-16 dB	0 dB
8	Loopback	Loopback Active	Loopback Off

APPLICATION


Standalone rack fixture - 18.95" x 7" (4U)	Single Unit Rack Mounts (1U)

Item Number	Description	Price	Buy Now!
Need it fast? Buy on-line or call toll free 800-432-2638!
202T-SA	202T Modem - Standalone w/ 110VAC wall mount supply	$ 555	Qty:
202T-12VDC	202T Modem - Standalone w/ 9-18 VDC input internal power supply option	$ 630	Qty:
202T-24VDC	202T Modem - Standalone w/ 18-36 VDC input internal power supply option	$ 630	Qty:
202T-48VDC	202T Modem - Standalone w/ 36-72 VDC input internal power supply option	$ 630	Qty:
202T-125VDC	125 VDC input external power supply for use with 202T-SA	$ 125	Qty:
202T-R	202T Modem - Rackmount	$ 445	Qty:
DCBL1	20 Slot Rack w/ power supply	$ 1680	Qty:
9902096	19" Rack Bezel 1 unit wide	$ 30	Qty:
9902095	19" Rack Shelf 3 units wide	$ 75	Qty:



Data Comm for Business Inc. 2949 County Road 1000 E Dewey, Il 61840	Voice: 217-897-6600 Toll Free: 800-4-DCB-NET Toll Free: 800-432-2638	Email: Contact Page Web: www.dcbnet.com Fax: 217-897-8023
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202T Private Line Modem

Private Line FSK Analog Asynchronous Modem

Need it fast? Buy on-line or call toll free 800-432-2638!