User's Manual

SER

S MANUAL FOR BAND SELECTIVE REPEATERS

03P

User'sManual.doc Id.-No.:154999 Page 37 22-Jan-01

The following table and the example show how to use the rotary-switches*:

Switch

Description

S1 Channel code x100

S2 Channel code x10

S3 Channel code x1

S4 Channel code x100

S5 Channel code x10

S6 Channel code x1

S7 Attenuation in 2 dB steps upto 30 dB for UL-path

S8 Attenuation in 2 dB steps upto 30 dB for DL-path

S9 Code switch for motherboard

* Factory settings are: S1-S8 in position 0, DIP-switch 1 of mode switch [1] in position “Off” (Automatic

mode). Switch S9 can be set to position 0 to 3 depending on the location of the motherboard in the

repeater.

table 5-3 Rotary switches of the motherboard

Example:

A gain of 74 dB is required in the UL- and DL-path, module 1 is set to channel 96 and

module 2 to channel 113. The repeater has a gain of max. 82 dB.

1. Calculate the difference between the max. repeater gain and the required gain.

Max. repeater gain: 82 dB

Required gain for UL and DL: 74 dB

-------------

Required attenuation for UL and DL: 8 dB

2. Turn switch S7 as well as S8 to position 4 to set an attenuation of 8 dB for UL- and

DL-path.

3. Set channel 96 for module 1:

Turn switch S1 to position 0: 0

Turn switch S2 to position 9: 90

Turn switch S3 to position 6: 6

--------

Channel: 96

4. Set channel 113 for module 2:

Turn switch S4 to position 1: 100

Turn switch S5 to position 1: 10

Turn switch S6 to position 3: 3

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Channel: 113