Digital Equipment BA42B, Руководство по обслуживанию

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Pin Specifications for the Ports on the BA42B System
Table A–3 (Cont.) Pin Specifications for Synchronous Port 0 and Port 1
Port 0 Port 1
Contact Signal Name
1
Signal Name
1
34 DSR A 1 P H DSR A 2 P H
35 DSR B 1 P L DSR B 2 P L
36 RTS 1 P L RTS 2 P L
37 DCD/I A 1 P H DCD/I A 2 P H
38 DCD/I B 1 P L DCD/I B 2 P L
39 CTS A 1 P H CTS A 2 P H
40 CTS B 1 P L CTS B 2 P L
42 TEST 1 1 P H TEST 1 2 P H
43 TEST 2 1 P H TEST 2 2 P H
44 DTE GND 1 PROT L DTE GND 2 PROT L
45 DTR A 1 P H DTR A 2 P H
46 DTR B 1 P L DTR B 2 P L
47 CLOCK A 1 P L CLOCK A 2 P L
48 CLOCK B 1 P H CLOCK B 2 P H
49 TEST 3 1 P H TEST 3 2 P H
50 SPEED SEL 1 P H SPEED SEL 2 P H
1
The signal names ending with L are active low; the signal names ending with H are active high.
A–8 Pin Specifications for the Ports on the BA42B System