evertz 7847FSEDA Series, Руководство пользователя

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7847FSEDA Series
Frame Synchronizer and Distribution Amplifier
Revision 0.1
Page - 7
2.2. ETHERNET CONNECTIONS
All 7847 series modules are designed to use either 10Base-T (10 Mbps) or 100Base-TX (100 Mbps)
also known as
Fast Ethernet , twisted pair Ethernet cabling systems. When connecting for 10Base-T
systems, category 3, 4, or 5 UTP cable as well as EIA/TIA – 568-100
Ω
STP cable may be used.
When connecting for 100Base-TX systems, category 5 UTP cable is required. To establish the
network connection, plug one end of a
straight through cable into the RJ-45 receptacle of the
7847FSEDA module and the other end into a port of the supporting hub. If you are connecting the
7847FSEDA series module directly to an Ethernet port on a computer, you will have to use a
crossover cable.
Straight-through RJ-45 cables can be purchased or can be constructed using the pin out information in
Table 2-1 for the current RJ-45 standards (AT&T 258A or EIA/TIA 258B colour coding shown). Also,
refer to the notes following the table for additional wiring guide information.
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: Colour Code Wiring for the Current RJ45 Standards
Note the following cabling information for this wiring guide:
• 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.
• 10BaseT and 100BaseT use the same pins; a crossover cable made for one will work with the
other.
• Pairs may be solid colours and not have a stripe.
• Category 5 cables must use Category 5 rated connectors.
The maximum cable run between the 7847FSEDA series modules and the supporting hub is 300 ft (90
m).