Unit installation

Appendix A Pinouts Installation and Operation Manual
A-14 Supervisory Port Connectors FCD-E1
A.3 Supervisory Port Connectors
CONTROL DCE Connector
The CONTROL DCE supervisory port has a standard RS-232 DCE interface
terminated in a 9-pin female connector, wired in accordance with Table A-12.
Table A-12. CONTROL DCE Supervisory Port, Pin Allocation
Pin Function Direction
1 Data Carrier Detect (DCD) Output
2 Receive Data (RD) Output
3 Transmit Data (TD) Input
4 Data Terminal Ready (DTR) Input
5 Signal Ground (SIG) Common reference and DC power supply
ground
6 Data Set Ready (DSR) Output
7 Request to Send (RTS) Input
8 Clear to Send (CTS) Output
9 Ring Indication (RI) Input
CONTROL DTE Connector
The CONTROL DTE supervisory port has a standard RS-232 DTE interface
terminated in a 9-pin female connector, wired in accordance with Table A-13.
Some of the pins in the connector can be converted to serve as floating common
alarm relay contacts. The Alarm Relay Contacts column lists the alternate use of
these pins.
Table A-13. CONTROL DTE Supervisory Port, Pin Allocation
Pin Function Direction Alarm Relay Contacts
1 Data Carrier Detect (DCD) Input Normally-closed (relative to pin 9)
2 Transmit Data (TD) Input -
3 Receive Data (RD) Output -
4 Data Terminal Ready (DTR) Output -
5 Signal Ground (SIG) Common reference and DC power
supply ground
-
6 Data Set Ready (DSR) Input -
7 Request to Send (RTS) Output -
8 Clear to Send (CTS) Input Normally-open (relative to pin 9)
9 Not used Not applicable Center contact