Alcatel-Lucent 9500 MXC, Руководство пользователя

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9500 MXC User Manual
3DB 23063 ADAA - Rev 004 July 2007 Vol. VI-C-17
DAC 4x and IDU RJ-45 to RJ-45 Crossover Cable
Connectors are wired such that Receive Ring and Tip at one end connect to
Transmit Ring and Tip respectively, at the other. Refer to Figure C-13. Pins 3, 6,
7, 8 remain the same. It provides a balanced 120 ohm connection.
• RJ-45 to RJ-45, Crossover, 2m, Part No: 3CC52020AAAA
• RJ-45 to RJ-45, Crossover, 5m, Part No: 3CC52021AAAA
Each assembly supports one trib. Four cable assemblies are required if all four
ports of the DAC 4x are to be connected. Twenty are required if all ports of the
IDU 20x are to be connected.
Crossover cable assemblies are used to interconnect one DAC or IDU RJ-45 port
to another.
Figure C-13.
DAC 4x RJ-45 to RJ-45 Crossover Cable Assembly
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
Receive Ring Receive Ring
Receive Tip Receive Tip
Optional Ground Optional Ground
Transmit Ring Transmit Ring
Transmit Tip Transmit Tip
Optional Ground Optional Ground
Ground Ground
Ground Ground
Pin Pin Function Function