User Manual

AS4000 Release3 and Release 4 Central
Terminal Installation and Commissioning
DLP-016
605-0000-432
Issue 1.3a Date 18th October 1999
Page 7 of 8
• Once the above is configured point and click OK button. This will set the
radio traffic mode: high rate and high power.
• Once the test menu is available again leave the menu open, do not close or
free line if the traffic mode is to be maintained.
e) Adjust the gain control voltage on Sitespan to achieve a RF Power level of
nominally +7dBm on the RF Power meter. The exact reading should be 10dBm -
the measured loss from point C to point B (approximately 3dB) in Figure 41.
Record the voltage and power level on the Test Result Sheet.
f) Remove the loopback by selecting Loopback Off and OK to deactivate the
loopback. Close test menu and return to the Subscriber View.
g) Putting the rack back in service
• Switch the Test CRU and CT Rack OFF.
• Remove the Test CRU and all interconnecting cables and accessories from
the RF Output connectors on the CT.
• Re-connect the Antenna /Feeder tails to the CT.
• Connect the Sitespan cables to the 25 way Sitespan port on the modem
backplane
• Re- connect the 2Mbit/s ports to the 2Mbit/s IN connectors on the shelf
interface connections located at the right hand side of each Modem Shelf.
• Switch the CT Rack ON and wait for the system to complete the power-up
self test sequence successfully.
7. Re-Connecting The 2Mbit/s Ports To The Modem Shelf.
Place a loop cable between the 2Mbit/s IN and 2Mbit/s OUT to condition the TU Card
alarm system. Leave loop for about 10 seconds before removing the loop cable.
Re- connect the 2Mbit/s ports to the 2Mbit/s IN connectors on the shelf interface
connections located at the right hand side of each Modem Shelf.
8. Remove Test Modem
Remove Test modem and place in the next shelf to be tested go to DLP-012.
If this is the last shelf to be tested return to DLP-010 and continue the commissioning
process.