Specifications

ManualsBrandsRAD Data comm ManualsNetwork CardT1

121

122

123

124

125

126

127

128

129

130

Chapter 6 Troubleshooting and Diagnostics RICi-4E1/T1, RICi-8E1/T1 Installation and Operation Manual

6-12 Testing the Unit RICi-4E1/T1, RICi-8E1/T1 Ver. 2.0

Performing Bit Error Rate Test (BERT)

You can perform a Bit Error Rate Test (BERT) to check that the E1/T1 physical

layer is free of errors. RICi-4E1/T1, RICi-8E1/T1 transmits a bit pattern to another

unit that provides a loopback. When the transmitting unit receives the bit

pattern, it compares it to the sent bit pattern to determine the error rate.

³ To perform BERT:

1. Navigate to the BERT menu (Main Menu > Diagnostics > BERT).

2. Type f or b to navigate to the E1/T1 port that you wish to test.

3. Define the pattern according to your testing requirements (see

Table

6-7

4. Select Send BERT and set it to On to start the test.

The test starts. If errors occur, Bit Error Count indicates how many errors.

5. If desired, select Inject Error to inject an error.

Indication of inject error is shown in the lower scrolling message window.

RICi-4E1/T1, RICi-8E1/T1

Main Menu > Diagnostics > BERT

Port (1)

Sync State > (Not Sync)

Bit Error Count (0)

1. Pattern > (p2E15m1)

2. Send BERT (Off)

3. Inject Error

ESC-Previous menu; !-Main menu; &-Exit; ?-Help

Figure

6-13. BERT Menu