Network Modems from Black Box

Analog Async Bell 202T Modem - Leased-Line, AC power -- MD1970A

 
 
Analog Async Bell 202T Modem - Leased-Line, AC power -- MD1970A -- View Larger Image
Analog Async Bell 202T Modem - Leased-Line, AC power -- MD1970A-Image

Specifications

Product Category
Network Modems
Ports / Interfaces
RS-232: (1) DB25 F; Telco: (1) RJ-45; 4-wire mode: Pins 4 and 5 for Transmit, Pins 3 and 6 for Receive; 2-wire mode: Pins 4 and 5 for Transmit/Receive