User's Manual

Block Diagram
The following block diagrams are found in this section:
• Channel selective GSM repeater, Figure 5-5 on page 5-10.
• Channel selective CDMA repeater, Figure 5-6 on page 5-12.
• Band selective repeater, Figure 5-7 on page 5-14.
Some of the most important features and functions are described below.
The main signal paths for the repeater types are described under the
block diagrams.
Downlink
The downlink signal path, i.e. from the base station through the repeater
to the mobile station, is described for channel selective GSM operation,
channel selective CDMA operation, and band selective operation under the
block diagrams on the following pages.
Uplink
The uplink signal path, i.e. from the mobile station through the repeater
to the base station, is identical to the downlink path the other way round.
Only some levels and component values differ.
Repeater Setup
The repeater parameters can be set locally by means of a desktop or
notebook loaded with the OMT32 software (or the OMS software). The
PC or notebook is connected to the CU via the P31 serial RS-232 PC port
(see Figure 5-5, Figure 5-6 and Figure 5-7).
The repeater parameters can also be set remotely by means of a phone
(mobile or via a telephone line) and a modem connected to the CU board
via the P32 modem serial RS-232 port (see Figure 5-5, Figure 5-6 and
Figure 5-7).
ALLGON System AB AR Repeaters & OMT32 Hardware – Functional Description
User’s Manual VD202 90/EN Rev. 1A 1999-07 5 - 8