C-38 Preliminary November 4, 1998 MAX 4000 Series Hardware Installation Guide
Cables and Connectors
Serial host interface specifications
.
Note: To manufacture an RS-449 cable for Cisco routers, use the wiring list shown in
Table C-27 and connect the following DB-37 pins to SGND:
• DSR-(pin 29)
• CD-(pin 31)
• CTS-(pin 27)
Table C-27. RS-449 cable to generic serial host pinouts
Pair # Signal
(MAX)
MAX male DB-44
(MAX)
Host female DB-37
1 FGND 1 1
2SD+
SD-
29
30
4
22
3RD+
RD-
40
39
6
24
4ST+
ST-
42
41
5
23
5RT+
RT-
37
38
8
26
6DSR
DCD/C
TS
6
36
11
9, 13*
7RTS
RI
7
43
7
15
8DTR
SGND
8
25
12
19, 20, 37*
9 TT+
TT-
31
32
17
35
10 RX/SEL 20, 28*
* Pin positions separated by commas are jumped to each other.
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