Gasboy CFN Series Diagnostic Manual - Manual (Page 344)

Site Controller III
12-10 1116
P7 – RS-232 General Purpose Synchronous Communications Port 2
Pinout Pin Function Input/Output or
Determining Jumper
1 N/C N/C
2 N/C N/C
3 TXD – Transmit data Output
4 TXC – Transmit clock synchronous Input if K10 jumpered
5 RXD – Receive data Input
6 N/C N/C
7 RTS – Request to send Output
8 RXC – Receive clock synchronous Input if K8 jumpered
9 CTS – Clear to send Input
10 N/C N/C
11 DSR – Data set ready Input
12 N/C N/C
13 DC ground DC ground
14 DTR – Data terminal ready Output
15 DCD – Carrier detect Input
16-21 N/C N/C
22 ETXC – External serial clock, synchronous Output if K9 jumpered
23-26 N/C N/C
P8 - Memory PCB Communication ports Interface
Pins A1 - A16
Pinout Pin Function Input/Output
A1 RXD – Receive data, port 6 Input
A2 TXD – Transmit data, port 6 Output
A3 DSR – Data set ready, port 6 Input
A4 DTR – Data terminal ready, port 6 Output
A5 CTS – Clear to send, port 6 Input
A6 RTS – Ready to send, port 6 Output
A7 DCD – Carrier detect, port 6 Input
A8 DC Ground DC Ground
A9 DCD – Carrier detect, port 5 Input
A10 RTS – Ready to send, port 5 Output
A11 CTS – Clear to send, port 5 Input
A12 DTR – Data terminal ready, port 5 Output
A13 DSR – Data set ready, port 5 Input
A14 TXD – Transmit data, port 5 Output
A15 RXD – Receive data, port 5 Input
A16 -12VDC -12VDC