3Com Router 3012 Installation Manual page 56
Router 3000 series
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Also See for Router 3012:
- Command reference manual (101 pages) ,
- Release note (7 pages) ,
- Installation manual (72 pages)
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56
C
A: O
HAPTER
PTIONAL
C
S
ABLE
PECIFICATIONS
Table 32 V.24 (EIA/TIA-232) DCE Cable Pinouts (continued)
DB-50
Signal
27
2
31
26
1
4
29
30
6
28
50
7
Signal Direction DB-25
RxD/TxD
<—
RTS/CTS
—>
CTS/RTS
<—
DTR/DSR
—>
LL/DCD
—>
TxCE/TxC
—>
NIL/RxC
—>
DCD/LL
<—
DSR/DTR
<—
RxC/TxCE
<—
GND
-
GND
-
Signal
2
TxD
5
CTS
4
RTS
6
DSR
8
DCD
15
TxC
17
RxC
18
LTST
20
DTR
24
TxCE
1
Shield_GND
7
Circuit_GND
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