90
A
PPENDIX
A: C
ABLE
S
PECIFICATIONS
AUX Cable
Figure 82
AUX Cable Assembly
Ethernet Cable
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
Table 55
RJ-45
Signal Direction DB-25
DB-9
Signal
1
—>
4
7
RTS
2
—>
20
4
DTR
3
—>
2
3
TXD
4
<—
8
1
DCD
5
-
7
5
GND
6
<—
3
2
RXD
7
<—
6
6
DSR
8
<—
5
8
CTS
Enlarged B side
Enlarged A side
Enlarged C side
DB25 Male
Label
DB9Male
8P8C Plug
Содержание 3C13755-US - Router 5642
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