Aux Cable; Ethernet Cable - 3Com 3C13755-US - Router 5642 Installation Manual

90 A A: C
PPENDIX ABLE

AUX Cable

Ethernet Cable

S
PECIFICATIONS
Figure 82 AUX Cable Assembly
Enlarged A side
Table 55
RJ-45
1
2
3
4
5
6
7
8
The Ethernet cable uses an RJ-45 connector and category 5 twisted pair cable.
Figure 83 Ethernet Cable Assembly
The Ethernet cables are classified as straight-through network cable and crossover
network cable. They have the following features:
Straight-through network cable — The sequences of the wires crimped at the
RJ-45 connectors of the two ends are the same. The cable is used in the
connection between a terminal device, such as a PC or a router, and the Hub or
LAN Switch. Straight-through network cables are delivered along with the
router.
Crossover network cable — The sequences of the wires crimped at the RJ-45
connectors of the two ends are different. The cable is used in the connection
DB25 Male
Label
Signal Direction DB-25
—> 4
—> 20
—> 2
<— 8
- 7
<— 3
<— 6
<— 5
8P8C Plug
Enlarged B side
DB9Male
Enlarged C side
DB-9 Signal
7 RTS
4 DTR
3 TXD
1 DCD
5 GND
2 RXD
6 DSR
8 CTS