User's Manual

Doc. No.
Rev.
Date
DRAFT
1.01
2012-01-27
Damm Cellular Systems A/S, Denmark
TetraFlex
®
7.5 Manual - BS41x Configuration
TetraFlex® 7.5 Manual 2-84
2.7.9 Add a Power Supply
A PS411 Power Supply can be inserted into and removed from the rack during normal BS
operation. Before it is inserted or removed, be sure, that both switches on the front plate are
in OFF position.
The PS411 automatically receives the configuration from the BSC at start-up. The
configuration can be checked from the BSC-GUI - BS Tab
or with the command:
H76/nn/ADD
Where nn reflects the PS411 cassette position 11 to 47
2.7.10 Combiner adjustment
The combiner can be adjusted with this OM command:
A11 Address TR1
10 Check that Tx is on else Turn on TX with 10+
AT11 Address select combiner 1A (AT12 = combiner 1B)
01+ Local blocking on
12 Display TC test points (should be as close to 0 VDC as possible)
13/1/+ Increment fine adjust setting (TC1 in combiner 1A)
13/1/- Decrement fine adjust setting (TC1 in combinder 1A)
Use 13/X/+ and - to adjust until you get the lowest possible VDC, check with OM 12 for each
adjustment. X is TC number (1-4), Change to TC that needs adjustment
13/1/EE++++ Save setting for TC1 (not automatically saved without this command)
01 - Set local blocking to off again
2.7.11 Antenna measurement
Use the following OM command to check the antenna and cable conditions:
AU+ (AU/FORCED if there are no connection)
A12 – Shift to TR2
01+ local blocking conditional request
10/AUTO/D disable auto Tx
10+ Turn on Tx
32+ Turn on RFTL high
23+ Rx antenna measurement command
The measurement must show a value around -20dBr (+/- 3dBr) a lower value may indicate a
bad receiver antenna (or cable)