Test Preparation; Figure 5-18 Example Of The Cable Test - Motorola PTP 800 User Manual

Testing the installation

Test preparation

Figure 5-18
the pre-power tests. In this example, there is a short length of cable from the
analyzer (in place of the CMU) to the first LPU, a length of cable 'y' from the first
LPU to the second LPU (at the top of the tower) and a short length of cable from
the second LPU to the ODU (0.7m long supplied in the accessory kit).

Figure 5-18 Example of the cable test

NOTE
To prepare for pre-power testing, proceed as follows:
Procedure 5-14 Prepare for pre-power testing
1 Connect the analyzer to the first LPU
2 Connect the first LPU to the second
Check that the second LPU is disconnected from the cable that
3
leads to the ODU
reconnected during testing.
4 Power on the analyzer.
When these preparations are complete, perform the following tests:
x
Testing cable loss
x
Measuring distance to fault
5-78
is an example to show how the equipment should be set up to perform
These tests should be performed in conjunction with the test equipment
manufacturer's instructions.
(Figure
on page 5-79.
(Figure
(Figure 5-18).
5-18). The second LPU and ODU are
on page 5-84.
Chapter 5 Installation
5-18).
phn-1478_005v000
Apr 2010