OPTICOM 764 - Page 48

Intersection Equipment Installation Instructions
48
Front Panel COM 1
COM Port
Pin Number
Signal Name
1 DTR (Data Terminal Ready)
2 TXD (transmit data)
3 RXD (receive data)
4 DCD (Data Carrier Detect)
5 GND (ground)
6 DTR (Data Terminal Ready
7 CTS (Clear to Send)
8 RTS (Ready to Send)
9 RI (ring Indicator)
Rear Edge COM 2
COM Port
Pin Number
Signal Name
19 TXD (transmit data)
21 RXD (receive data)
Table 12-5 Communication Port Pin Assignments (Phase Selector)