17
© Sealevel Systems, Inc. 3405 Manual | SL9144 6/2021
Connector Pin Assignments, Continued
DB-37 Male
Port #
1
2
3
4
GND
33
14
24
5
TD
35
12
26
3
RTS
17
30
8
21
DTR
34
13
25
4
RD
36
11
27
2
CTS
16
31
7
22
DSR
18
29
9
20
DCD
37
10
28
1
RI
15
32
6
23
Please terminate any control signals that are not going to be used. The most common way to do
this is connect RTS to CTS and RI. Also, connect DCD to DTR and DSR. Terminating these pins, if
not used, will help insure you get the best performance from your adapter.
