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Appendix B Adapter cable pinout diagrams 79
Setting Up the BayStack Instant Internet 400-S Unit
X.21 (DCE) adapter cable
Figure 16 shows the pinout settings for an X.21 (DCE) modem adapter cable
(part number CQ2118006).
Figure 16 X.21 (DCE) adapter cable diagram
1
2
4
3
5
8
15
17
24
7
14
19
16
10
13
9
12
11
25
26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
GND
TDA
RTA
RDA
CTSA
RCA
ETCA
SGND
TDB
RTB
RDB
CTSB
RCB
ETCB
DTE
DB25M DV15M (X.21 VF)
9941EB