This document describes installation, commissioning and the design of the Allgon AR Repeaters.
Communication between Allgon AR repeaters and operators is carried out either by using Allgon OMT32 (Operation and
Maintenance Terminal), or Allgon OMS (Operation and Maintenance System). OMT32 is described in the OMT32, User’sManual. OMS is described in the Advanced Repeater OMS, User’s Manual.
Hardware and software mentioned in this document are subjected to continuous development and improvement.
Consequently, there may be minor discrepancies between the information in the document and the performance and
design of the product. Specifications, dimensions and other statements mentioned in this document are subject to change
without notice.
Allgon and its suppliers shall not be liable for any damages related to the software or hardware, or for any other damages whatsoever caused of the use of or
inability to use any Allgon product. This is applicable even if Allgon has been advised of the damage risk. Under any circumstances, Allgon’s entire liability
Teflon is a registered trademark of Du Pont. Other trademarks mentioned in this document are trademarks or registered trademarks of their respective
shall be limited to replace such defective software or hardware which was originally purchased from Allgon.
owners.
This document is produced by El, Tele & Maskin Ingenjörsfirma AB, Huddinge, Sweden.
Figure 5-17. Cabling, high power CDMA repeater - 2 ch. ..................................... 5-31
Figure 5-18. Cabling, band selective repeater ....................................................... 5-32
Figure 6-1. RCU - GSM 900 type ............................................................................... 6-2
Figure 6-2. RCU - Fixed Wire Line PCMCIA type ....................................................... 6-5
Figure 6-3. RCU - Wireless PCMCIA type ................................................................... 6-6
Figure 6-4. Repeater to Repeater Link ...................................................................... 6-9
VD203 66/EN - User’s ManualRev. P1A 2000-09v
A
bbreviations
AR RepeatersAllgon Systems AB
Abbreviations used in this manual, in the software, and in the repeater:
AGCAutomatic Gain Control
ALIAlarm Interface board
AMPSAdvanced Mobile Phone Service
BCCHBroadcast Control Channel (GSM broadcast channel time slot)
BSBase Station, BS antenna = towards the base station
BSABand Selective Amplifier board for uplink or downlink band with fixed or
adjustable band width
BSelBand Selective
CDMACode Division Multiple Access
CHAChannel Amplifier board with 2 channel selective uplink or downlink channels
CMBCombiner unit
CSACDMA Segment Amplifier board with 2 channel selective uplink or downlink
channels
CSelChannel Selective
CUControl Unit board
CWContinuous Wave
DAMPSDigital Advanced Mobile Phone Service
DCDirectional Coupler
DCSDigital Communication System (same as PCN)
DIADistribution board
DLDownlink signal direction (from base station via repeater to mobile station)
DPXDuplex filter
EEPROMElectrical Erasable Programmable Read Only Memory
EGSMExtended Global System for Mobile communication
ETACSExtended Total Access Communication System
ETSIEuropean Telecommunications Standard Institute
GSMGlobal System for Mobile communication
HWHardware
LEDLight Emitting Diode
LNALow Noise Amplifier, uplink and downlink
MSMobile Station, MS antenna = towards the mobile station
MSCMobile Switching Center
NMTNordic Mobile Telephone system
OMSOperation and Maintenance System
OMS/PCDesktop or notebook with installed OMS software
OMT32Operation and Maintenance Terminal
OMT32/PC Desktop or notebook with installed OMT32 software
PAPower Amplifier board for uplink or downlink
PCNPersonal Communication Network (same as DCS)
PCSPersonal Communication System
PSUPower Supply Unit
PTFEPolytetrafluoro Ethylene (Teflon)
RCURemote Control Unit
RFRadio Frequency
RIARepeater to Repeater Interface Adapter
RSSIReceived Signal Strength Indication
RTCReal Time Clock
SWSoftware
TACSTotal Access Communication System
TDMATime Division Multiple Access
ULUplink signal direction (from mobile station via repeater to base station)
UPSUninterruptible Power Supply
viRev. P1A 2000-09VD203 66/EN - User’s Manual
Allgon Systems ABAR RepeatersSafety
1
. Safety
Any personnel involved in installation, operation or service of Allgon
repeaters must understand and obey the following:
• Allgon repeaters are designed to receive and amplify signals from one or
more base stations and retransmit the signals to one or more mobile
stations. Also, the repeaters are designed to receive signals from one or
more mobile stations, amplify and retransmit to the base stations. The
repeaters must be used exclusively for these purposes and nothing else.
• Repeaters supplied from the mains must be connected to grounded
outlets and in conformity with any local regulations.
• The power supply unit in repeaters supplied from the mains contains
dangerous voltage that can cause electric shock. Disconnect the mains
prior to any work in such a repeater. Any local regulations are to be
followed when servicing repeaters.
Authorized service personnel only are allowed to service repeaters while
the mains is connected.
BERYLLIUM OXIDE
HYDROGEN FLUORIDE
• The repeater cover must be secured in opened position, e.g. by tying it
up, at outdoor repeater work. Otherwise, the cover can be closed by the
wind and cause your fingers getting pinched or your head being hit.
• When working on a repeater on high ground, e.g. on a mast or pole, be
careful not to drop parts or the entire repeater. Falling parts can cause
serious personal injury.
• Any repeater, including this repeater, will generate radio signals and
thereby give rise to electromagnetic fields that may be hazardous to the
health of any person who is extensively exposed to the signals at the
immediate proximity of the repeater and the repeater antennas.
• The CHA channel board power transistors, the PA amplifier board
power transistors, and the combiners (CMB) contain beryllium oxide
(BeO) that is poisonous if present as dust or smoke which can be
inhaled. The power transistors mentioned are mounted with two
screws as opposed to other transistors.
Do not file, grind, machine, or treat these parts with acid.
Warning signs are applied on boards and units that contain beryllium
oxide. These warning signs are shown in the next section.
• The coaxial cable insulation is made of PTFE, polytetrafluoro ethylene,
that gives off small amounts of hydrogen fluoride when heated.
Hydrogen fluoride is poisonous. Do not use heating tools when
stripping off coaxial cable insulation.
No particular measures are to be taken in case of fire because the
emitted concentration of hydrogen fluoride is very low.
VD203 66/EN - User’s ManualRev. P1A 2000-091 - 1
SafetyAR RepeatersAllgon Systems AB
• A lithium battery is permanently mounted on the CU board. Due to
the risk of explosion, this battery must not be removed from the board.
In case of battery malfunction, replace the CU board. The old CU
board can be sent to Allgon for repair.
• The heat sink element on the CDMA High Power repeater can be very
hot. Do not touch this surface during operation.
Warning Signs
The following warning signs must be observed and be kept clean and
readable.
Beryllium oxide
This warning sign is applied on boards and units which contain beryllium
oxide parts.
Beryllium
oxide
hazard
BERYLLIUM OXIDE
(Toxic)
used in equipment
see instruction book
This warning sign is applied at the bottom, inside the cabinet, below the
power supply unit.
The previous section details parts containing beryllium oxide and how to
avoid dangerous dealing with these parts.
Static Electricity
Static electricity means no risk of personal injury but it can severely
damage essential parts of the repeater, if not handled carefully.
Parts on the printed circuit boards as well as other parts in the repeater
are sensitive to electrostatic discharge.
Never touch the printed circuit boards or uninsulated conductor
surfaces unless absolutely necessary.
If you must handle the printed circuit boards or uninsulated conductor
surfaces, use ESD protective equipment, or first touch the repeater
chassis with your hand and then do not move your feet on the floor.
Never let your clothes touch printed circuit boards or uninsulated
conductor surfaces.
Always store printed circuit boards in ESD-safe bags.
1 - 2Rev. P1A 2000-09VD203 66/EN - User’s Manual
Allgon Systems ABAR RepeatersIntroduction
2
. Introduction
Figure 2-1. Allgon AR Repeater
Allgon repeaters are used to fill out uncovered areas in cellular mobile
systems, such as base station fringe areas, road tunnels, business and
industrial buildings, etc.
A repeater receives signals from a base station, amplifies and retransmits
the signals to mobile stations. Also it receives, amplifies and retransmits
signals in the opposite direction. Both directions are served
simultaneously.
To be able to receive and transmit signals in both directions, the repeater
is connected to a donor antenna directed towards the base station and to
a service antenna directed towards the area to be covered.
Control of the repeaters is performed using a desktop or notebook loaded
with the Allgon OMT32, Operation and Maintenance Terminal, which can
communicate with the repeaters, either locally or remotely via modem.
Remote operation can be performed either via a traditional telephone line
or via a mobile phone that can be installed inside the repeater.
To be able to control many Allgon AR repeaters in common, there is an
Allgon OMS, Operation and Maintenance System.
The repeaters and the OMT32 is described in this manual. The OMS is
described in the OMT32, User’s Manual.
User’s Manual VD203 66/ENRev. P1A 2000-092 - 1
IntroductionAR RepeatersAllgon Systems AB
Repeater Types
The following repeater types are currently available:
• Channel selective GSM repeater
• Channel selective CDMA repeater
• Channel selective high power CDMA repeater
• Band selective repeater with fixed bandwidth
• Band selective repeater with adjustable bandwidth
• Combined repeater
In the OMT32, the channel selective 900, 1800, and 1900 systems are
called GSM, DCS and PCS respectively, even though these systems may
have different names in other parts of the world.
Channel selective GSM repeater
A channel selective GSM repeater can be equipped with two, four, six or
eight channels. This repeater type is used for channel selective systems,
such as GSM, DCS, PCN and GSM 1900 (PCS).
Channel selective CDMA repeater
A channel selective CDMA repeater can be equipped with one or two
channels. This repeater type is used for digital code division systems in
accordance with IS-95 or J-std-008 standard.
Channel selective high power CDMA repeater
A channel selective CDMA repeater like the previous one, but equipped
with a 6dB (typically) BA (Booster Amplifier) unit.
Band selective repeater with fixed bandwidth
A band selective repeater with fixed bandwidth has fixed filters for a
certain bandwidth. This repeater type is used for analog or digital
systems, such as NMT, GSM, TACS, ETACS, AMPS, DAMPS and CDMA.
Band selective repeater with adjustable bandwidth
A band selective repeater with adjustable bandwidth has filters that can
be set to various bandwidths. This repeater type is used for analog or
digital systems, such as NMT, TACS, ETACS, AMPS, DAMPS and CDMA.
Combined repeater
Some of the above mentioned types can be combined in the same repeater
chassis and be in operation in parallel.
2 - 2Rev. P1A 2000-09User’s Manual VD203 66/EN
Allgon Systems ABAR RepeatersIntroduction
Using Repeaters
In areas where the radio signal propagation is poor repeaters can be used
to fill out those areas which are not covered by the base station.
The following scenarios are examples on this:
– Sports arenas
– Fair halls
– Large shopping centres
– Road and railway tunnels
– Indoors in buildings with metal or concrete walls
Other examples where repeaters can be used to increase the coverage are:
– Shaded areas
– Fringe coverage areas
In areas where the traffic intensity is low, it is not cost efficient to install
a base station. An Allgon repeater, which can be installed with a
minimum of investments, is a much better solution. You save installation
costs as well as operational costs.
Examples of using repeaters
Two examples are described in the following sections. An outdoor example
in a shaded valley and an indoor example in a sports arena.
User’s Manual VD203 66/ENRev. P1A 2000-092 - 3
IntroductionAR RepeatersAllgon Systems AB
Shaded Area
A valley is shaded by hills. There is a base station 5 kilometers away, but
the lowest signal strength in the valley is less than –100dBm. A mast
used for other purposes is available for a repeater installation. The mast
height is 42 meter and it is located on a hill. The scenario is illustrated
in Figure 2-2.
Donor antenn a
Service ante nna
Figure 2-2. Repeater coverage of shaded area
The donor antenna of the repeater was mounted at the top of the mast
and the service antenna was mounted at the half mast. The antenna
isolation was measured to over 100dB. The repeater was set to 80dB gain.
Measured levels:Received signal level– 60.0 dBm
Donor antenna gain15.0 dBi
Cable loss
–
5.0 dB
Repeater input level– 50.0 dBm
Adjusted repeater gain70.0 dB
Repeater output level20.0 dBm
Cable loss– 5.0 dB
Service antenna gain8.0 dBi
Radiated output level23.0 dBm
The measured result in the valley was better than –90dBm.
2 - 4Rev. P1A 2000-09User’s Manual VD203 66/EN
Allgon Systems ABAR RepeatersIntroduction
Sports Arena
A 2000 spectators sports arena with metallic roof had an indoor signal
strength too low to provide a fair service in most parts of the arena. The
nearest base station was 8 kilometers away and it was equipped with one
carrier only.
A donor antenna directed towards the base station was mounted on a
mast outside the building and a repeater was installed inside the building
with the service antenna on the arch vault. The scenario is illustrated in
Figure 2-3.
Donor antenna
Service antenna
Figure 2-3. Repeater in sports arena
The antenna isolation was measured to over 85dB.
Measured levels:Received signal level– 80.0 dBm
Donor antenna gain15.0 dBi
Cable loss
–
5.0 dB
Repeater input level– 70.0 dBm
Adjusted repeater gain75.0 dB
Repeater output level5.0 dBm
Cable loss– 2.0 dB
Service antenna gain7.0 dBi
Radiated output level10.0 dBm
The signal strength was fair for service in the entire arena.
User’s Manual VD203 66/ENRev. P1A 2000-092 - 5
Allgon Systems ABAR RepeatersInstallation
3
. Installation
Before installation, read carefully Chapter 1, Safety.
Siting the Repeater
Allgon repeaters are designed for outdoor usage. However, humidity and
temperature changes may have affect on the reliability. A preferable site
for the repeater is thus indoor, in a tempered and ventilated room.
Sunshine
If a repeater is placed outdoor and can be exposed to direct sunshine, it is
essential that the air can circulate around the repeater with no obstacle.
The operating temperature must not exceed +55°C. A shelter can be used
to shade the repeater from direct sunshine.
Shelter
Allgon repeaters are designed with a weather proof outdoor case that can
be mounted without any kind of shelter from rain, snow or hail.
If a repeater is to be opened on the site when raining, snowing, or hailing
there must be some kind of permanent or temporary shelter. This is
applicable to gentle rainfall, snowfall or hail. Limitations for very bad
weather is found in the next section.
Allgon can provide a shelter designed for these repeaters. This shelter is
shown in Figure 3-1.
Outdoor Installation and Service Limitations
Sited outdoors, the repeater must not be opened for installation or
service at bad weather, such as:
– Intense rainfall, snowfall or hail
– Storm or high wind
– Extremely low or high temperature
– High humidity of the air
User’s Manual VD203 66/ENRev. P1A 2000-093 - 1
InstallationAR RepeatersAllgon Systems AB
Dimensions and Weights
The dimensions of the repeater, including the mounting bracket, is shown
in Figure 3-1. The repeater chassis consists of two main parts, a cabinet
in which the circuitry is housed, and a cover, which can be either a thin
cover or a large cover (see the figure) depending on the configuration.
110 (4.3")
530 (20.9")
Mounting br acket
520 (20.5"
440 (17.3")
)
ALLGON
CabinetShelter Thin cove r Large cover
174 (6.9")
224 (8.8")
Figure 3-1. Repeater dimensions
240 (9.4")
290 (11.4")
The high power CDMA repeater has an external heat sink on a large
cover, see Figure 3-2.
180 (7.1")
350 (13.8")
ALLGON
35 (1.4")
Figure 3-2. High power CDMA repeater
3 - 2Rev. P1A 2000-09User’s Manual VD203 66/EN
Allgon Systems ABAR RepeatersInstallation
Approximately repeater weights
Channel selective repeater, four channels, thin cover ............ 21 kg (46 lbs)
Channel selective repeater, four channels, large cover ........... 25 kg (55 lbs)
Band selective repeater, thin cover .......................................... 21 kg (46 lbs)
Band selective repeater, large cover ......................................... 25 kg (55 lbs)
Channel/band selective combi repeater, large cover ............... 30 kg (66 lbs)
Channel selective high power CDMA repeater, large cover ... 30 kg (66 lbs)
It is not recommended to remove the cover from the cabinet at the site.
However, if the cover, for some reason, has to be removed from the
cabinet, then disconnect the interconnection cables, close the cover,
remove the hinge shafts, and remove the cover.
The cabinet and cover weights are, approximately, as follows:
Empty thin cover .......................................................................... 6 kg (13 lbs)
Empty large cover ...................................................................... 10 kg (22 lbs)
Equipped cabinet or large cover ............................................... 15 kg (33 lbs)
User’s Manual VD203 66/ENRev. P1A 2000-093 - 3
InstallationAR RepeatersAllgon Systems AB
Mounting
The AR repeater is easy to mount using the provided mounting bracket,
which has Ø14mm (9/16") holes for 10mm (3/8") or 12mm (1/2") fixing
screws. Clamps with c-c measures of 90mm (3.5"), 135mm (5.3"), 144mm
(5.7"), 205mm (8.1"), 250mm (9.8"), and 300mm (11.8") can be used as
well. The vertical c-c measure for these are 411mm (16.2").
The mounting bracket is shown in the figure.
NOTE! There is a Ø14mm (9/16") single hole in the middle of the
mounting bracket, marked ’A’ in the figure, which is intended for a
locking screw, i.e. a screw which cannot be removed when the repeater is
put in the bracket.
Mount the repeater as follows:
1. Mount the provided bracket.
Normally, the repeater is mounted on a wall, pole, or mast. These
mounting cases are shown below.
Figure 3-3. Attaching the bracket to a wall
Figure 3-3 shows a bracket attachment to a wall using four fixing
screws and a locking screw.
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Allgon Systems ABAR RepeatersInstallation
Figure 3-4. Attaching the bracket to a pole
Figure 3-4 shows a bracket attachment to a pole using two 144mm
(5.7") U-shaped clamps and a locking screw.
Figure 3-5. Attaching the bracket to a mast
Figure 3-5 shows a bracket attachment to a mast using two 300mm
(11.8") bar-shaped clamps and no locking screw.
User’s Manual VD203 66/ENRev. P1A 2000-093 - 5
InstallationAR RepeatersAllgon Systems AB
Figure 3-6. Attaching the repeater to the bracket
2. After attaching the bracket, hang the repeater on the upper supports
(see Figure 3-6) and use the screws for the lower ones. Tighten the
upper and lower screws.
There are locking cylinders that can be inserted and locked with a
key after the lower screws have been tightened (see Figure 3-6).
These prevents from unauthorized removal of the repeater.
3. Mount the donor antenna directed towards the base station antenna.
This antenna is marked ’BS’ in the repeater.
4. Mount the service antenna directed towards the area to be covered by
the repeater. This antenna is marked ’MS’ in the repeater.
3 - 6Rev. P1A 2000-09User’s Manual VD203 66/EN
Allgon Systems ABAR RepeatersInstallation
Connection
OUT
INATT +7VOUT1 OUT2
LNA
LOW
UL
LNADL
OUTLOWIN+7V ATTOUT1 OUT2
DC
DPX
TEST
-30 dBMS
-20 dB
ANT
DC
DPX
TEST
-30 dBMS
-20 dB
ANT
PSU
Mains
MS
BS
High power CDMA only
BS
MS
Figure 3-7. MS and BS antenna connections
1. Connect the service and donor antenna coaxial cables (see
Figure 3-7). N type female connectors are used in the repeater.
The donor antenna (BS) is connected to the right in the cabinet,
except for the high power CDMA repeater for which the donor
antenna is connected to the left in the cabinet (see Figure 3-7).
The service antenna (MS) is connected to the left in cabinet, except
for the high power CDMA repeater for which the service antenna is
connected to the right in the cabinet (see Figure 3-7).
2. Mount the mains plug and connect the power supply unit, PSU.
For repeaters supplied from the mains, the mains outlet must be
grounded. Both the mains plugs of repeaters equipped with two power
supply units must be connected to outlets supplied from the same fuse.
User’s Manual VD203 66/ENRev. P1A 2000-093 - 7
InstallationAR RepeatersAllgon Systems AB
3. Connect external alarm sensors (burglary, fire, etc.) and other
external alarm equipment (optical or acoustic signal, etc.), if any.
P33
External alarm is connected to the P33 alarm port located to the left
in the cabinet (see Figure 3-8 on page 3-10). Use a 15 pole D-sub
male connector.
Externalalarm
sensors
MS –20dB
P32
P27
RCU
Modem
Power supply
This is a schematic figure.
The various RCU parts can
be integrated or configured
differently.
Battery
The P33 port is described on page 3-12.
Cables for this installation is taken through strain relief bushings or
connectors at the bottom of the repeater.
4. Connect the internal phone/modem unit for remote control of the
repeater, if any.
The modem and a power backup unit are integrated in an RCU,
Remote Control Unit, which is mounted downmost inside the cabinet,
in front of the PSU. The RCU is available in different types for
various systems, which is further detailed in the Optionals section in
Chapter 6.
The modem is connected to the P32 modem port (RS-232, V.24
interface) on the repeater located to the left in the cabinet (see
Figure 3-8 on page 3-10).
The P32 port is described on page 3-12.
The mobile phone antenna is connected to the MS –20dB port on the
BS directional coupler (DC) in the cabinet (DC/BS), provided that the
phone and the repeater operate in the same system.
If an RCU is used, this is powered by the P27 auxiliary port located
to the left in the cabinet (see Figure 3-8 on page 3-10). Pin 2 and 3
of the P27 port are interconnected with a jumper if not used. This
jumper must be removed before plugging the RCU connector to P27.
The P27 port is described on page 3-11.
If the RCU is removed, the jumper between pin 2 and 3 on the P27
port must be reconnected. Otherwise, the CU and ALI boards will
have no voltage supply. Do not connect the jumper to another position
than between pin 2 and 3 on the P27 port.
5. Connect a telephone line for remote control of the repeater, if any.
The telephone line is connected to a modem, which is connected to
P32
the P32 modem port on the repeater.
The P32 port is described on page 3-12.
Use a strain relief bushing or a connector at the bottom of the
Telephone line
Modem
repeater for the external telephone line cable.
3 - 8Rev. P1A 2000-09User’s Manual VD203 66/EN
Allgon Systems ABAR RepeatersInstallation
6. Connect the Repeater to Repeater Link cable, if this optional feature
is to be used. The R2R net cable is connected to the P34 Repeater to
P34
P3 P2
P1
Repeater Link port via the P1 terminal on the R2R connector board
to the right in the repeater.
The P34 Repeater to Repeater Link port is described on page 3-14.
Use a strain relief bushing or a connector at the bottom of the
repeater for the external telephone line cable.
Required information for a Repeater to Repeater Link installation is
found in the VD202 91/EN, R2R, Repeater to Repeater Link Kit,Installation Guide.
7. Connect a PC for controlling the repeater. A COM port on the PC is
P31
connected to the P31 PC port (RS-232) located to the right in the
cabinet (see Figure 3-8 on page 3-10). Use the provided serial cable.
Port P31 is described on page 3-11.
Now, you can use OMT32 to set up and control the repeater. The
OMT32 program is described in the OMT32, User’s Manual.
But first, check the connections made and commission the repeater as
described in Chapter 4.
User’s Manual VD203 66/ENRev. P1A 2000-093 - 9
InstallationAR RepeatersAllgon Systems AB
Connection Ports and Station Ground
The DIA distribution board provides most of the internal connection
between the repeater units, and to external ports. Connectors involved in
the installation are also located on the DIA board. These connectors are
described below. A complete DIA board connector list is found in the
Board and Unit Descriptions section in Chapter 5.
Station ground is detailed below as well.
OUT
INATT +7VOUT1 OUT2
LNA
LOW
UL
CMBCMB
DLUL
DPXDPX
MS
LNADL
OUTLOWIN+7V ATTOUT1 OUT2
BS
P28
P34
P32
P33
P27
DC
DPX
TEST
-30 dBMS
-20 dB
ANT
DC
DPX
TEST
-30 dB
-20 dB
ANT
MSBS
Figure 3-8. Connection ports and station ground
MS
P31
DC
MS
-20 dB
Station Ground
There is a ground screw (M8) in the repeater that is intended for station
ground (see Figure 3-8). This screw must be used only for station
grounding.
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Allgon Systems ABAR RepeatersInstallation
P27 Auxiliary Port
8
1
Auxiliary port P27 is used for powering an RCU mobile phone/modem
remote control unit. The connector is found on the DIA board to the left
in the cabinet (see Figure 3-8).
P27 is an 8 pole, 1 line male connector.
Pin 2 and 3 of the P27 port MUST ALWAYS be interconnected to provide
the CU and ALI boards with voltage supply. If there is no cable connected
to the P27 port, pin 2 and 3 MUST be interconnected with a jumper.
P27 auxiliary connector pinning
Pin 1+7V DC
Pin 2+7V DC
Pin 3CU and ALI power supply from pin 2
Pin 4GND
Pin 5+26V DC or +10V DC depending on the repeater type
Pin 6Not used
Pin 7Output 200KHz reference
Pin 8GND
P31 PC Port
9
6
PC port P31 is a RS-232 port used for local PC communication.
5
The connector is found on the DIA board to the right in the cabinet (see
Figure 3-8).
1
P31 is a 9 pole D-sub female connector.
P31 PC connector pinning
Pin 1Not used
Pin 2Data from repeater to OMT32
Pin 3Data from OMT32 to repeater
Pin 4DTR from OMT32 to repeater
Pin 5GND
Pin 6DSR from repeater to OMT32
Pin 7RTS from OMT32 to repeater
Pin 8CTS from repeater to OMT32
Pin 9Not used
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InstallationAR RepeatersAllgon Systems AB
P32 Modem Port
Modem port P32 is a RS-232 port with V.24 interface used for remote
6
1
control of the repeater.
9
5
P33 Alarm Port
15
8
The connector is found on the DIA board to the left in the cabinet (see
Figure 3-8).