Pin Specifications for the Ports on the BA42B System
Table A–2 (Cont.) Asynchronous Port A and Port B Pin Specifications for the
Eight-Modem Control Line Option
Port A
Port B
Contact
Signal Name
1
Signal Name
1
10
LINE 0 RI CONN H
LINE 4 RI CONN H
11
—
—
12
LINE DSRS CONN<0> H
LINE DSRS CONN<4> H
13
LINE 1 TX CONN L
LINE 5 TX CONN L
14
LINE 1 RX CONN L
LINE 5 RX CONN L
15
LINE RTS CONN<1> H
LINE RTS CONN<5> H
16
LINE 1 CTS CONN H
LINE 5 CTS CONN H
17
LINE 1 DSR CONN H
LINE 5 DSR CONN H
18
LINE 1 SGND CONN L
LINE 5 SGND CONN L
19
LINE 1 CD CONN H
LINE 5 CD CONN H
20
LINE 1 SPDMI CONN H
LINE 5 SPDMI CONN H
21
LINE DTR CONN<1> H
LINE DTR CONN<5> H
22
LINE 1 RI CONN H
LINE 5 RI CONN H
23
—
—
24
LINE DSRS CONN<1> H
LINE DSRS CONN<5> H
25
LINE 2 TX CONN L
LINE 6 TX CONN L
26
LINE 2 RX CONN L
LINE 6 RX CONN L
27
LINE RTS CONN<2> H
LINE RTS CONN<6> H
28
LINE 2 CTS CONN H
LINE 6 CTS CONN H
29
LINE 2 DSR CONN H
LINE 6 DSR CONN H
30
LINE 2 SGND CONN L
LINE 6 SGND CONN L
31
LINE 2 CD CONN H
LINE 6 CD CONN H
32
LINE 2 SPDMI CONN H
LINE 6 SPDMI CONN H
33
LINE DTR CONN<2> H
LINE DTR CONN<6> H
34
LINE 2 RI CONN H
LINE 6 RI CONN H
35
—
—
36
LINE DSRS CONN<2> H
LINE DSRS CONN<6> H
1
The signal names ending with L are active low; the signal names ending with H are active high.
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Pin Specifications for the Ports on the BA42B System A–5
