C B A REMARkS
1 APA_B APA_A APA_A, APA_B = wires for telephone lines
2
3 GND GND GND
4 RXD1 ALCPU1 TXD1 RXDi, TXDi, RTSi, CTSi, DCDi, DSRi, DTRi,
RIi, RXCKi, TXCKEi = outputs wires for the
V24
5 CTS1 RALCPU1 RTS1
6 DCD1 RMTRES1 DTR1
7 DSR1 GND RI1 ALCPUi, RALCPUi = wires for the CPU
alarm
8 GND GND GND
9 RXD2 GND TXD2 RMTRESi = wires for remote reset
10 CTS2 ALCPU2 RTS2
11 DCD2 RALCPU2 DTR2
12 DSR2 RMTRES2 RI2
13 GND GND GND
14 RXD3 DCD3 TXD3
15 GND GND GND
16 RXD4 GND TXD4
17 CTS4 RXCK4 RTS4
18 DCD4 TXCKE4 DTR4
19 DSR4 GND RI4
20 GND GND GND
21 RXD5 RXCK5 TXD5
22 CTS5 TXCKE5 RTS5
23 DCD5 GND DTR5
24 DSR5 GND RI5
25 GND GND GND
26 GND GND GND ALEXTi, RALEXTi, STLINE, RSTLINE =
wires forr external alarms
27 TELEXT1 GND ALEXT1
28 RTELEXT1 GND RALEXT1
29 TELEXT2 GND ALEXT2
30 RTELEXT2 GND RALEXT2 TELEXTi, RTELEXTi = wires for external
commands
31 STLINE GND ALEXT3
32 RSTILNE GND RALEXT3
Chapter
3
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3-2
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