User Manual

AS4000 Release3 and Release 4 Central

Terminal Installation and Commissioning

DLP-014

605-0000-432

Issue 1.3a Date 18th October 1999

Page 3 of 6

Enter the sum of the component losses for the system.

The losses for the cable are recorded on a cable attenuation record attached to the

top of the cable. Cable A is supporting modem shelves one and two. Cable B is

supporting modem shelves three and four.

454-0010-019 Issue x

CABLE ATTENUATION

MHz dB

1865 - x.xx

1880 - x.xx

1895 - x.xx

2049 - x.xx

2067 - x.xx

2088 - x.xx

2330 - x.xx

2346 - x.xx

2362 - x.xx

3431 - x.xx

3452 - x.xx

3477 - x.xx

The coupler loss is recorded on the coupler using a similar label and the internal

loss for the LCU is recorded on a Label on the LCU.

The path loss entered using the hand held terminal is the loss occurring in the

transmitted signal from the LCU before reaching the CT LNA. Therefore path

loss for signals to all shelves is the same.

The path loss for both modem shelves 1&2 and 3&4 = Loss coupler (LNA) + loss

Cable + internal loss of LCU.

5. Key F6 to return to the previous menu

6. Select Mode Select.

Shelf : 1 0E-

>Mode Select< 1-R

Path Loss Set 0--

CT RX Trim ---

7. Set to Continuous

Mode SH:1 0E-

1-T

Mode:Continuous 0--

0--

8. Key F6 twice to return to the Status/Configuration Selection Menu.