User Manual

AS4000 Subscriber Terminal

Installation and Commissioning

Appendix

605-0000-454

Draft Issue 1.3 Date 8/02/00

Page 2 of 2

1.2 Placing a loopback at the the ST

1. Connect the LAT cable to the ST

2. Ensure the ST has booted up correctly

3. Put ST into test mode Type: TE 0

4. Force ST to acquire on RW 7, with Uplink and Downlink of 160kbit/s, using

RF channel 9 within C2 band (F14) LK 7 1 4 4 0 9

5. Watches link state. TypeW 426 Wait for the link to acquire. When the link has

acquired the ST will return:D: 0426 0B0B

6. Enables Loopback. Type:MM 40004a h=df

The BER test can now be run from the Central Terminal.

To take the DTU out of the test mode, using the LAT cable, type: TE 1

To return the ST to normal, using the LAT cable, type: TE 1

STOP. THIS PROCEDURE HAS BEEN COMPLETED.