HP A6602, Руководство по установке

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
Standard cable: Also called straight-through cable. At both ends of a standard cable, wires are
crimped in the RJ-45 connectors in the same sequence. A straight-through cable is used to
connect a terminal (for example, PC or router) to a hub or LAN Switch. The cables delivered
with the A6602 are straight-through cables.

Crossover cable: At both ends of a crossover cable, wires are crimped in the RJ-45 connectors
in different sequences. A crossover cable is used to connect a terminal (for example, a PC or
router) to another terminal. You can make crossover cables by yourself as needed.
Table 1-17 Straight-through cable pinouts
RJ-45 pin Signal
Category-5
twisted pair
Signal direction RJ-45 pin
1 Tx+ White (Orange)

1
2 Tx– Orange

2
3 Rx+ White (Green)

3
4 — Blue — 4
5 — White (Blue) — 5
6 Rx– Green

6
7 — White (Brown) — 7
8 — Brown — 8
Table 1-18 Crossover cable pinouts
RJ-45 pin Signal direction
Category-5
twisted pair
Signal direction RJ-45 pin
1 Tx+ White (Orange)

3
2 Tx– Orange

6
3 Rx+ White (Green)

1
4 — Blue — 4
5 — White (Blue) — 5
6 Rx– Green

2
7 — White (Brown) — 7
8 — Brown — 8

You can refer to the table above when distinguishing between or preparing these two types of
Ethernet cables.

When preparing Ethernet cables, please follow the chromatogram given in the table to arrange
the wires. Otherwise communication quality will be affected even if the devices at both ends are
connected.

When preparing Ethernet cables, use shielded cables preferentially for electromagnetic
compatibility (EMC).
6) Fiber connecting a 1000 Mbps optical Ethernet interface
You can use a single-mode or multi-mode optical fiber to connect a 1000 Mbps optical Ethernet
interface to an Ethernet. You can select proper fibers for the installed 1000Base-FX SFP
transceiver (GE SFP for short). Since the optical interfaces on these SFP transceivers use LC