Owner`s manual

22
Fig. 1: RJ-45 Receptacle Fig. 2: RJ-45 Plug
CABLING
The RPC RJ-45 control port uses the following signals:
EIA-232 RJ-45 CONTROL PORT PIN/SIGNAL DEFINITION
Pin EIA-232
Signal
Direction Description
1 DTR Output +10V when activated by DCD. Toggles on logout for modem
disconnect.
2 GND ---- Signal Ground
3 RTS Output +10V when powered is applied, not used as a handshake line
4 TX Output Transmit Data (data out)
5 RX Input Receive Data (data in)
6 N/C N/C No Connection
7 GND ---- Signal Ground
8 DCD Input DCD into the RPC/Not used on RPC-2 MD01