Gasboy CFN Series Diagnostic Manual - Manual (Page 347)

Site Controller III
1116 12-13
PC ISA Bus Interface connector – Solder Side
Sections B and D
Pinout Pin Function Voltage
B1 GND – DC Ground DC Ground
B2 N/C N/C
B3 VCC - +5VDC +5VDC
B4 N/C N/C
B5 N/C N/C
B6 N/C N/C
B7 -12VDC -12VDC
B8 N/C N/C
B9 +12VDC +12VDC
B10 GND – DC Ground DC Ground
B11 PCMEMW – Dual RAM Write  0VDC-On
B12 PCMEMR – Dual RAM Read  0VDC-On
B13 to 28 N/C N/C
B29 +5VDC +5VDC
B30 N/C N/C
B31 GND – DC Ground DC Ground
D1 PCMEMCS16  0VDC – On
D2 N/C N/C
D3 IRQ10 – Interrupt Request 10 S1-4 closed -  0VDC – On
S1-4 open – N/C
D4 IRQ11 – Interrupt Request 11 S1-3 closed -  0VDC – On
S1-3 open – N/C
D5 IRQ12 – Interrupt Request 12 S1-2 closed -  0VDC – On
S1-2 open – N/C
D6 IRQ15 – Interrupt Request 15 S1-1 closed -  0VDC – On
S1-1 open – N/C
D7 to D15 N/C N/C
D16 +5VDC +5VDC
D17 N/C N/C
D18 GND – DC Ground DC Ground
See the charts shown earlier in this section for the exact pinouts of these connectors:
P9 - RS-232 General Purpose Communications Port 1
P10 - RS-485 Console Communications Loop 3
P11 & P12 - RS-485 Island Communications Loops 1 & 2
Jumpers
Switch Function Setting Default
K3 AC power fail sense 1, 2, & 3 Jumpered Jumpered
K4 AC watchdog timer 1-2 to enable Jumpered
K5 SC-Comm CPU (testing only) 1-2 to reset Open
2-3 for 4-wire Jumpered
K6 RS-485 loop 1, 2 to 4 wire
1-2 for 2-wire Open
2-3 for 4-wire Open
K7 RS-485 loop 2, 2 to 4 wire
1-2 for 2-wire Jumpered
K8 Rx clock from synchronous modem (Port 2) 1-2 to connect Open
K9 ETC output to synchronous modem (Port 2) 1-2 to connect Open
K10 Tx clock input from synchronous modem (Port 2) 1-2 to connect Open
K11 EPROM type
1-2 for 27512
2-3 for 27256/25128 Open
Jumpered
K12 EPROM type
1-2 for 27512
2-3 for 27256/25128 Open
Jumpered