3Com 3C63311 Reference Guide - Page 59
Signal Name, Pin # on 60-pin, Connector, Pin # on DB-25, Direction for, Serial Port
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Installation Procedures 47 Table 15 Connector Pinouts for EIA530 DTE cable (60-pin Connector) to DB-25 Male Signal Name Frame GND Circuit GND RTS CTS DSR DCD (not used, see DCE cable) DTR LL (not used) SD+ SDRD+ RDSCTE+ SCTESCR+ SCRSCT+ SCTShorting GR 1 Shorting GR 2 Pin # on 60-pin Connector 46 45 9, 10 1, 2 3, 4 5, 6 Pin # on DB-25 Connector 1 7 4, 19 5, 13 6, 22 8, 10 Direction (for Serial Port) Out In In In 7, 8 20, 23 Out 44 18 Out 11 2 Out 12 14 Out 28 3 In 27 16 In 13 24 Out 14 11 Out 26 17 In 25 9 In 24 15 In 23 12 In 47, 48, 49 51, 52,
Installation Procedures
47
Table 15
Connector Pinouts for EIA530 DTE cable (60-pin Connector) to DB-25 Male
Signal Name
Pin # on 60-pin
Connector
Pin # on DB-25
Connector
Direction (for
Serial Port)
Frame GND
46
1
Circuit GND
45
7
RTS
9, 10
4, 19
Out
CTS
1, 2
5, 13
In
DSR
3, 4
6, 22
In
DCD (not used, see
DCE cable)
5, 6
8, 10
In
DTR
7, 8
20, 23
Out
LL (not used)
44
18
Out
SD+
11
2
Out
SD-
12
14
Out
RD+
28
3
In
RD-
27
16
In
SCTE+
13
24
Out
SCTE-
14
11
Out
SCR+
26
17
In
SCR-
25
9
In
SCT+
24
15
In
SCT-
23
12
In
Shorting GR 1
47, 48, 49
Shorting GR 2
51, 52,