RS232 to RS422/RS485 interface powered converter
RS232 to X.21 interface powered converter
V35-485-1M RS-485 to V.35 interface converter
RS232 to RS-449 interface powered converter
RS-530 data port module for TTU01 T1 acces unit
RS232 to RS485 interface converter
Fractional T1 (DS1) to V.35 / RS-449 / X.21 or RS-530 access unit
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