Setting Up E1 Diagnostics

Setting Up E1 Diagnostics
The diagnostic tests available for E1 include:
RAM - During the RAM test, the memory on the E1 measurement module is tested. Memory hardware failures are detected.
ROM - The ROM test verifies the integrity of the code by performing a checksum measurement.
Loop Back - The loop back test is a functional test of the transmitting and receiving hardware. It attempts to send various signal patterns and levels and then to verify the measured values. It is important that this test be done using short 75 BNC cables (preferably 100-millimeter (4-inch) cables) because long cables can reduce the signal levels during the diagnostic tests, and this could case a false failure.
If any of the three tests listed above fail, contact your service center.
To Set Up E1 Diagnostics

Step
Notes

1
[Mode]

2
[Backhaul]

3
[E1 Analyzer]

4
[Tests]

5
[Verification]
The E1 Loop Cable connection diagram shown on the instrument display, and the accompanying explanation, contain the information you need to set up the test.

6
[Continue]
The test is performed and results are reported on the screen.


	Step	Notes
1	[Mode]
2	[Backhaul]
3	[E1 Analyzer]
4	[Tests]
5	[Verification]	The E1 Loop Cable connection diagram shown on the instrument display, and the accompanying explanation, contain the information you need to set up the test.
6	[Continue]	The test is performed and results are reported on the screen.