ALLGON System AB
Introduction
AR Repeaters & OMT Introduction
Allgon repeaters are used to fill out uncovered areas in cellular mobile
systems, such as base station fringe areas, road tunnels, busirEss and
industrial buildings, etc.
A repeater receives signals from a base station, amplifies
signals to mobile stations. Also it receives, amplifies
are
in the opposite direction. Both directions
To be able to receive and transmit signals in both directions, the repeater is
connected
service antenna directed towards the area to be covered.
Operation of the repeaters is performed using a desktop or notebook and the
Allgon
locally or remotely
There is also an Allgon OMC (Operation & Maintenance Center), which is
intended to be used to
The repeaters and the
described in the
to a donor antenna directed towards the base station and to a
OMT
(Operation & Maintenance Terminal) which communicate,
via
modem, with the repeaters.
run
many Allgon AR repeaters.
OMIT
is described in this manual. The OMC is
Advanced Repeater 0MG, User’s Manual.
served simultaneously.
and
retransmits the
and
retransmits signals
User’s Manua~ VD2O1 17/EN
Rev. 4B 19c8-03
2-1
Figure 2-1. Allgon AR Repeater
Installation AR Repeaters & OMT
ALLGON
System AB
Installing 24
Volt or 48 Volt DC Power Supply Unit
PSU
a 24 Volt or 48 Volt DC
2. Disconnect the two connectors on the PSU.
3.
Loosen the three fixing screws using a 5mm Allen key.
4.
Remove the PSU from the repeater.
5.
Mount the 24/48 Volt DC PSU with the three fixing screws (3).
6. Connect the PSU to the
7. Connect the DC power cable. The supplied cable has a radiation limiter which is a requirement for
the 24/48 Volt unit to be type
approved. The cable shall be connected as follows:
as follows:
1. Switch the repeater off and remove the mains plug from the PSU, if
not already done (1 in Figure 3-9).
DIA
board (2).
You can replace an AC PSU with
+
The
pole shall be connected to one of the left terminals in the PSU
connector with the BROWN part of the DC cable.
The
pole shall be connected to one of the right terminals in the
—
PSU connector with the BLUE part of the DC cable.
8. When the connection is completed, switch the repeater on.
9.
Make sure the yellow LED is lit on the PSU.
The DC Power Supply Unit must be galvanically separated from the
mains supply with an equipment fulfilling the 1EC65 safety
requirements.
3 - 14
VD2O1 171EN
Figure 3-9. Replacing the PSU
ALLGON System AB
AR
Repeaters
Rev. 48 W98-03
& OMT PC Controlling
User’s Manual
Band Selective Type
~‘
e5ndteIe~tiVf~
repeftter
Figure 5-20. Band selective configuration
The left-hand part of the configuration window contains downlink
information (BSA board #1 and PA board #1 located to the left in the cabinet
or cover).
The right-hand part of the configuration window contains uplink information
(BSA board #2 and PA board #2 located to the right in the cabinet or cover).
The downmost line indicates current band width and the band width status
(fixed or adjustable).
Fixed band width operation
For repeaters equipped
with
fixed band
three fields are changeable:
Downlink: Gain
Uplink: Set low band edge Gain
The values in the remaining fields are automatically calculated from the band
width and the uplink/downlink frequency difference.
width
BSA boards, the following
Adjustable band width operation
For repeaters equipped
‘Set high band edge’ field is also available and changeable.
Users Manual VD2O1 1 7/EN
PC Controlling AR Repeaters & OMT
System AB
with
adjustable band width BSA boards, the
Rev. 4B 1998-03
5
-
uplink
39
ALLGON
Field descriptions:
Bandselective repeater
The band selective repeater, or the band selective part of a combined
repeater,
The PA boards and the AGC (Automatic Gain Control) are turned off
when the band selective repeater is switched off.
‘Downlink’ section
can
be turned on/off by clicking this box.
Low band edge
Displays the downlink low band edge related to the uplink low band edge.
The difference is depending on the system duplex spacing.
High band edge
downlink high band edge related to the band width.
The
Gain
maximum downlink gain,
The
i.e. the total
gain
from antenna
port to
antenna port.
Setting range:
‘UpIink’ section
45dB
to
90dB
Set low band edge
The lower
clicking the arrow buttons. The frequency is changed in 12.5KHz steps. Values
band
edge for the
field as well.
uplink signal.
The band edge frequency can be increased or decreased by
Setting range for this field is depending on the system and BSA
boards.
Set high band edge
For fixed BSA boards, this field displays the uplink high band edge
related to the band width. This band edge cannot be changed solely.
For adjustable BSA boards, this field is changeable and affects thus
the uplink high band edge and thereby the band width.
Gain
maximum uplink gain, i.e. the total gain from antenna port to
The
antenna port.
can
typed into the
be
Setting range: 45dB
5 - 40
to
Rev.
90dB
4B 1998-03
ALLGON System AB
PC Controlling AR Repeaters & OMT
Main Window Button Bar
Main window button functions:
Login
see the
-
Logout
see the
Exit
-
Configuration
Read status
Board Testpoints
Change
File
menu (page 5-103).
see the
-
active repeater
File
menu (page 5-103).
File
menu (page 5-103).
see the Parameters menu (page 5-106).
-
see the Status menu (page 5-108).
-
see the Tests menu (page 5-109).
-
part
Received Repeater Alarms
see the Hardware menu (page 5-111).
-
see the Alarm menu (page 5-112).
-
5
102
-
VD2O1 17/EN
menu (page 5-113).
Repeater
Alarm
Reset!
Event Log
see the Alarm menu (page 5-112).
-
see the Alarm menu (page 5-112).
-
Rev. 4B 1998-03
About
___
see the
-
Users Manual
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