User's Manual

VOLUME III, CHAPTER 3, INU AND INUE INSTALLATION
For Connection Function, receive specifies data in to the DAC; transmit is data out
from the DAC.
Table 3-6. DAC 4x RJ-45 to RJ-45 Straight Cable Connections
RJ-45 Pin-to-Pin Connections Connection Function
1 1 Receive Ring
2 2 Receive Tip
3 3 Optional Ground
4 4 Transmit Ring
5 5 Transmit Tip
6 6 Optional Ground
7 7 Ground
8 8 Ground
DAC 4x 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. Pins 3, 6, 7, 8 remain the same. It provides a
balanced 120 ohm connection.
Each cable supports one trib. Four cables are required if all four ports of the DAC 4x
are to be connected.
Crossover cable assemblies are used to interconnect one DAC RJ-45 port to another.
For Connection Function, receive specifies data in to the DAC; transmit is data out
from the DAC.
Table 3-7. DAC 4x RJ-45 to RJ-45 Crossover Cable Assembly
Connection
Function
Pin-to-pin
Connections
Connection
Function
Receive Ring 1 4 Transmit Ring
Receive Tip 2 5 Transmit Tip
Optional Ground 3 3 Optional Ground
Transmit Ring 4 1 Receive Ring
Transmit Tip 5 2 Receive Tip
Optional Ground 6 6 Optional Ground
Ground 7 7 Ground
Ground 8 8 Ground
DAC 4x RJ-45 to Wire Wrap Cable Assembly
The assemblies are available with cable lengths of 2m, 5m or 7.5m. It provides a
balanced 120 ohm connection.
The wire is designed for use with wire wrap or insulation displacement termination
blocks.
84 AVIAT NETWORKS