MD-1252/U

Communications modem

Features

Tech char: bell 103/113 compatible; ccitt v.21 compatible; 300 baud; hdx/fdx; rs-422/232c interface; operating power rqmts: ac, 115/230 volts, 47-450 hz, single phase; rack mounted; 2 or 4 wire, full duplex at 300 baud or half duplex at 1200 baud; interfaces an rs-232 or rs-422 data port with a two-wire fsk data port; allows multiple transmitting set control by a single remote control unit using telephone lines

Properties of MD-1252/U

Overall Depth:
13.000 inches
Overall Height:
3.500 inches
Overall Width:
19.000 inches
Transmitted Signal Frequency Rating:
Between 1070.0 hertz and 1270.0 hertz
Received Signal Frequency Rating:
Between 2025.0 hertz and 2225.0 hertz
Modem Type:
Channel
Circuit Quantity:
1
Fsc Application Data:
An/frt-10 (v) frc-gc1489-09
NSN:
5895-01-277-2866
Description:
Modem,communications
Cage Code:

Definition Communications Modem

An item which modulates and demodulates one or more electrical signals. It connects data terminal equipment to a communication line or network such as telephone, radio or telegraph. It may include the multiplexing and demultiplexing circuits, circuit amplifiers and source(s) of carrier frequency. For items designed for light signals, see modem, fiber optic.

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Last modified 06/26/2024