3com 3C16894 4-slot Chassis 用户手册
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A
S
WITCH
7750 C
ABLES
This appendix covers the following types of cables and connectors:
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Console Cable
Figure 44 illustrates the console cable and connectors.
Figure 44 The Console cable
Table 53 lists console cable pin-outs.
AUX Cable
Figure 45 illustrates the AUX cable.
Table 53 Console Cable Pin-outs
RJ-45
Signal
Direction
DB-25
DB-9
1
RTS
<----
4
7
2
DTR
<----
20
4
3
TXD
<----
2
3
4
CD
--->
8
1
5
GND
----
7
5
6
RXD
--->
3
2
7
DSR
--->
6
6
8
CTS
--->
5
8
Enlarged A side
Enlarged A side
DB25 Female
DB25 Female
8P8C Plug
8P8C Plug
Enlarged B side
Enlarged B side
DB9 Female
DB9 Female
Enlarged C side
Enlarged C side