evertz 7880IPG-NAT Series, Руководство пользователя

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7880IPG-NAT Series
High Density Network Address Translator
Page - 6
Revision 2.1
2.1.1. Ethernet Connection Control
The 7880IPG-NAT is designed to be used with either 10Base-T (10 Mbps), 100Base-TX (100 Mbps)
also known as
Fast Ethernet cabling systems. When connecting for 10Base-T systems, category 3, 4,
or 5 UTP (unshielded twisted pair) cable as well as EIA/TIA – 568 100
Ω
STP (shielded twisted pair)
cable may be used. When connecting for 100Base-TX systems, category 5 UTP cable or better is
required. When connecting for 1000Base-T system, category 5, 5e, 6, or 7 UTP cable is required. The
cable must be “straight-through” with a RJ-45 connector at each end. Make the network connection by
plugging one end of the cable into the RJ-45 receptacle of the 7880IPG-NAT and the other end into a
port of the supporting switch or directly to a computer.
The straight-through RJ-45 cable can be purchased or can be constructed using the pin out information
in Table 2-1 or Table 2-2 for the current RJ-45 standards (AT&T 258A, EIA/TIA 568A or EIA/TIA 568B -
colour coding listed). Also refer to the notes following the table for additional wiring guide information.
Figure 2-2: RJ-45 Connector Pin-Out Locations
Pin 1
Pin # Signal EIA/TIA 568A
AT&T 258A or
EIA/TIA 568B
10BaseT
or 100BaseT
1 Tr White/Green White/Orange X
2 Transmit – Green/White or White Orange/White or Orange X
3 R White/Orange White/Green X
4 N/A Blue/White or Blue Blue/White or Blue Not used (required)
5 N/A White/Blue White/Blue Not used (required)
6 Receive – Orange/White or Orange Green/White or Green X
7 N/A White/Brown White/Brown Not used (required)
8 N/A Brown/White or Brown Brown/White or Brown Not used (required)
Table 2-1: 10BaseT and 100BaseT Straight Through Wiring Connections
Note the following cabling information for this wiring guide:
•
On 10Base-T and 100Base-T, only two pairs of wires are used in the 8-pin RJ-45 connector to carry
Ethernet signals. Even though pins 4, 5, 7 and 8 are not used, it is mandatory that they be present
in the cable
•
Pairs may be solid colours and not have a stripe
•
Category 5 cable must use Category 5 rated connectors