Comtrol DB25 - Cable Adapters; Overview; RJ45 to DB9 Connector Pinouts for Devicemaster and Rocketport

Cable Adapters [Documentation number: 2000430 Rev B] 31
Cable Adapters
Overview
This chapter covers the following topics:
• RJ45 to DB9 Connector Pinouts for DeviceMaster and RocketPort
• 8J RJ11 to Standard DB25 (Null-modem Configuration)
• 8J RJ11 to Standard DB9 (Null-modem Configuration)
RJ45 to DB9 Connector Pinouts for DeviceMaster and RocketPort
The following table displays the modem wiring connection from a Comtrol RJ45
connector to a standard DB9 connector.
Note: If your DB9 wiring differs from the one shown below, adjust the DB9
pinouts accordingly.
RJ45 Connector Pinouts DB9 Connector Pinouts
Pin RS-232 Signal Pin RS-232 Signal
6 DCD 1 DCD
5 RxD 2 RxD
4 TxD 3 TxD
2 DTR 4 DTX
3 Signal GND 5 Signal GND
7DSR 6 DSR
1RTS 7 RTS
8CTS 8 CTS
NC
a
a. Ring indicator is not supported on the RJ45 connector.
9RI
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