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The QSC-100 is a DTE device which connects to peripheral equipment through a single
female D-37 connector, or using the adapter cable, four male D-25 connectors. The standard
serial port connections are listed in Figure 17.
73571272673GND
221522292262220RI
83481182582DCD
61763168622DSR
201620302072021DTR
53651352754CTS
41843249423RTS
33731432835RxD
219233210224TxD
D-25D-37D-25D-37D-25D-37D-25D-37
Port 4Port 3Port 2Port 1
RS-232
Signal
Figure 18 --- QSC-100 connector pinouts
D-25 connector
(using adapter cable)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
14
15
16
17
18
19
1
2
3
4
5
6
7
8
9
10
11
12
13
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
D-37 connector
(dashed lines delineate channels)
Figure 19 --- QSC-100 output connectors
Quatech QSC-100 User's Manual 25