Synchronous/Asynchronous Communications Port - DEC 600s Owner's Manual

Synchronous/Asynchronous Communications Port

Table B–2 (Cont.) Synchronous/Asynchronous
Pin Source
9
10
11
12
13
14
15
16
17
18
19
20 System
21
22 Modem/printer
23
24
25
1
international committee that sets international communications standards.
2
B–4 Port Pin-outs
Communications Port Pin-outs
Signal
DTR
RI
International Telegraph and Telephone Consultative Committee (CCITT), an
Electronic Industries Association
1 2
CCITT EIA Description
Not used
Not used
Not used
Not used
Not used
Not used
Not used
Not used
Not used
Not used
Not used
108.2 CD Data terminal ready
Not used
125 CE Ring indicator
Not used
Not used
Not used