Damm Cellular Systems A S 104012 410 MHZ TRANSCEIVER MODULE User Manual Description

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Document ID	1828320
Application ID	AaAhsRDwkE1OIUd7dCj9TQ==
Document Description	User addendum 8 carrier 11 01 2012
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	21.94kB (274244 bits)
Date Submitted	2012-11-01 00:00:00
Date Available	2013-02-01 00:00:00
Creation Date	2012-10-09 15:19:36
Producing Software	Microsoft® Word 2010
Document Lastmod	2012-10-09 15:19:36
Document Title	Description
Document Creator	Microsoft® Word 2010
Document Author:	esb

D100300-
Damm Cellular Systems A/S, Denmark
Doc. No.
Rev.
Date
D100300-REF
1.02
2012-10-09
BS411 Base Station
1.1 BS411 BASE STATION - 8 CARRIER
Description
DAMM BS411 is a 8-carrier TETRA indoor base station and is complementary to DAMM
BS421 and DAMM BS414 TETRA base stations. The BS411 may be used in networks where
high traffic capacity is required (up to 31 Erlang).
It is designed for a fully IP based connectivity and allows for remote supervision and
diagnostic, test, control, setting and software update, file transfer and SNMP. Its embedded
Operate & Maintenance (OM) system is reached by means of Windows desktop.
The BS411 support discontinuous transmission fully GPS synchronized. This allows a
dramatic decrease in power consumption, as only the active TR412 (‘s) needs to be
powered, until traffic load requires more carriers to be on air.
BS411 fully supports Voice + Data services in full and half duplex modes, compliant with the
ETSI EN 300 392
Access to all field replaceable units (FRU) is from the front, protected by a lockable door, and
all external connectors in located on top of the rack.
Page 1 of 7
D100300-
Damm Cellular Systems A/S, Denmark
Doc. No.
Rev.
Date
D100300-REF
1.02
2012-10-09
BS411 Base Station
The BS411 consist of the base station controller, the transceiver modules, the combiner
system and the filter system. In the receiver path a separate Tower Mounted
Amplifier/Duplexer (TMD412) is an integrated functional part of BS411.
The TMD412 is intended for mast/tower mounting. Substantially the unit is a receiver
amplifier, but can be coupled as an amplifier with build in duplex filter. Using the TMD412 in
Duplex mode needs to take into consideration the numbers of carriers and frequencies used,
in order to eliminate potential interference.
The TMD412 amplification of the received signals fully eliminates the feeder cable loss by up
to 8dBm, which gives superior radio coverage performance and link balance.
The BS411 rack contains (ref. to figure 1 and 2 on page 4-5):
Base Station Controller, BSC412.
The operating system in the BSC412 executes DAMM’s TetraFlex® system software and may
as well execute Tetra system software from DAMM OEM Partner.
By installing a second redundant BCS412 in the BS411 rack, reliability will be improved.
BSC412 is equipped with an internal GPS receiver giving accurate time, date and frequency
synchronization of all installed TR412’s and to allow the base station to run full time
synchronous with other base stations in a network. This is necessary for optimum cellreselection and seamless handover from mobiles. Missing GPS signals will cause the internal
high stability oscillator to take over synchronization.
The GPS sync input signal from a single GPS antenna may as well allow for external
synchronization in tunnels solutions and in other operational areas where GPS signals
cannot be received directly.
It is provided with an enhanced processer with the ability to handle a complete TETRA site. It
contains enhanced Ethernet LAN and WAN connections intended for Voice over IP switching.
Dongle management of software licenses can be provided via an USB port.
Power Supply, PS411.
The PS411 is connected to mains, 100 to 240VAC 47-63Hz, or -48V batteries and supply all
units in the rack and the TMD412 and beside offers -48VDC for auxiliary units and/or the
ability to charge an external battery, controlled by the External Battery Kit.
The power supply cassette has space for the necessary numbers of PS411 to supply the fully
equipped rack plus one more for N+1 redundancy.
All Power supplies have load sharing to improve reliability.
A built-in micro-controller in the PS411 allows close monitoring of all main parameters both
via the O&M interface and from the network management system. Configuration can be
stored directly in the PS411, but will normally be controlled of common configurations in the
BSC411 Base Station Controller.
Page 2 of 7
D100300-
Damm Cellular Systems A/S, Denmark
Doc. No.
Rev.
Date
D100300-REF
1.02
2012-10-09
BS411 Base Station
Transceiver, TR412
The TR412 Transceiver is a complete TETRA carrier unit
The TX section contains a linear, low noise transmitter linearized with a Cartesian loop. It can
deliver a peak output power of 60W, giving a nominal output power of 25W TETRA .
Modulation and power control is performed in software of the DSP. The output amplifier is
protected with a VSWR protection circuit and a temperature protection scheme. The forward
and reflected power can be measured with built-in RMS power meters. An RFTL output is
available for Base Station test.
The RX is a double super-heterodyne high dynamic range receiver provided with dual
diversity with separate RX paths all the way to the DSP. The final selectivity, diversity
combination, demodulation etc. is made in DSP software.
The 16-bit micro-controller handles the general control functions of the transceiver, boot of
DSP, O&M communications etc. It also handles the packet mode communication on the
HDLC bus to the BSC412.
All internal frequencies are generated with PLL’s locked to the information coming from the
BSC.
TX Combiner, TC411.
The TC411 is a 4-way TX cavity combiner module used to combine the individual TX outputs
to a single cable.
The TC411 consists of 4 motor-tuned ¼ or ¾ λ TEM resonators. The inputs are provided with
dual circulators with high-power loads, which are able to dissipate the reflected power when
the TX antenna is missing or the cavity is tuned to a frequency not matching the transmitter.
An RF detector is provided on the high-power load used for manual adjustment and alarm
generation.
The TC411 is equipped with the TCC411 TC Combiner Controller with built-in microcontroller, which controls the motors.
At power-up, the micro-controller initializes the tuning position against a mechanical end stop.
The TCC411 is connected to the O&M UART bus and can be reached with O&M commands
from the BSC412.
TX Filter, TF411.
The TF411 is a high power TX filter, which reduces the radiation in the RX band, and is
connected to the TX antenna socket located on top of rack.
Tower Mounted Amplifier/Duplexer, TMD412.
The TMD412 contains two low-loss highly selective RX filters and two low-noise high
dynamic range amplifiers which amplify the RXA and RXB signals.
The TMD412 also contains a duplex filter, which can be used to combine the TX and one of
the RX antennas to a single antenna. The duplex part of the TMD412 is optimized for low
loss and extremely low inter-modulation distortion. When using the duplex filter option, care
shall be taken not to use TX frequencies generating 5 th order inter-modulations products in
the RX frequencies
Page 3 of 7
D100300-
Damm Cellular Systems A/S, Denmark
Doc. No.
Rev.
Date
D100300-REF
1.02
2012-10-09
BS411 Base Station
Antenna Interface, AI411.
The AI411 Antenna Interface unit is used in all Base Station (BS411and BS414) and contains
all the necessary circuit to support a complete Radio Cell including support of the Tower
Mounted Amplifier/Duplexer TMD412 with all functions.
The two independent RX multi-coupler amplifiers are built with low-noise high dynamic range
transistors. They have DC-insertion in the feeders for the TMA/TMD and alarm circuits to
monitor the TMA/TMD’s and the internal amplifiers´ current consumption. Included in the
input are variable input attenuators to adjust for actual cable loss.
An RF Power Detector is used to supervise the forward and reflected power at the TX
antenna connector. The detectors are temperature-compensated and the output levels can
be fine adjusted.
Receiver Multi-coupler Divider, RMD411.
The RMD411 divides the RXA and RXB signals and feed them to the receiver part of the
TR412
Figure 1
DAMM BS411 with text
Connection Box CON
Antenna Interface AI
Receiver Multicoupler Divider
RMD
Base Station controller BSC
Carrier units TR
Radio Frequency Test Loop
combiner RFTL
Power Supply units PS
Blower module
4-channel Transmitter Cavity
combiners TC
Page 4 of 7
D100300-
Damm Cellular Systems A/S, Denmark
Doc. No.
Rev.
Date
D100300-REF
1.02
2012-10-09
BS411 Base Station
Figure 2
DAMM BS414 (BS411) TX/RX Signal Paths
DAMM BS414 (BS411) TX/RX Signal Path
Control and Power connections not shown
TMA
TMA
TX/RX-A
RX-A
TX
RX-B
1.
2.
RX-A
0,6dB 0,8dB
TMA/TMD412
RX-B
1=TMA
1+2 = TMD
GPS
TX
Test
Refl.
Test
Connector panel
BSC412
TX filter
Connections on backside of AI411
AI411 (x2 for 8 carrier)
RMD414 (RMD411 for 8 carrier)
1 to 4 TR414
(1 to 8 for BS411)
TC411
(x2 for 8 carrier
+ 1x Combiner kit)
RTC414 (RTC411 for 8 carrier)
Page 5 of 7
D100300-
Damm Cellular Systems A/S, Denmark
Doc. No.
Rev.
Date
D100300-REF
1.02
2012-10-09
BS411 Base Station
Specification
Parameter
Frequency Bands:
RX=300-310MHz, TX=336-346MHz, BW=10MHz
RX=350-360MHz, TX=360-370MHz, BW=5MHz
RX=380-390MHz, TX=390-400MHz, BW=5MHz
RX=410-420MHz, TX=420-430MHz, BW=5MHz
RX=450-460MHz, TX=460-470MHz, BW=5MHz
RX=805-825MHz, TX=850-870MHz, BW=14MHz
Other frequencies on request
Value
EU Public safety
US-FCC
Common TX/RX:
Synthesizer frequency step
Frequency accuracy
Timing accuracy
12,5kHz
Locked to GPS
+/-14us ref. GPS timing
Duplexer- Amplifier:
RX feeder loss compensation max.
TX path insertion loss (10MHz duplex spacing)
8 dB nom.
0.6dB typ.
Transmitter;
Output power before combiner
Output power after cavity combiner and TX filter
TX linearization scheme
Forward and reflected power meter
1 to 25W
½ to 10W
Cartesian Loop
0.1W to 99.9W
Receiver:
Note: The TMD412 Tower Mounted Amplifier/Duplexer is a functional an integral
part of BS41x range. The two RX amplifiers in the TMA/TMD are included in the RX
sensitivity values.
Diversity
RX sensitivity with diversity. Static
RX sensitivity without diversity. Static
RX sensitivity with diversity. Dynamic TU50 at 4% BER
RX sensitivity without diversity. Dynamic TU50 at 4% BER
Noise figure
rd
3 –order IM input intercept point
Intermediate frequencies
RSSI dynamic range
Dual as standard
-121dBm
-117dBm
-118dBm
-112dBm
3.5dB typ.
+13dBm typ.
45MHz and 144kHz
Noise floor to -43dBm
Base Station Control Unit
Operating system:
Host processor
RAM
Operating system
Synchronisation of date/time
Non synchronized operation
Co-processor
CF Disk Multiple partition
Optional CF Disk Multiple partition
Ethernet including voice over IP
Synchronization
Pentium M 1,4GHz
1GByte
Windows WES2009
From GPS or External sync.
Built-in oscillator
HDLC buses to TR412 and PS411
8GB (2GB+2GB+4GB)
16GB (2GB+2GB+12GB)
10/100Mbit
1 sec pulse in/out
Antenna configuration:
Using TMD412 coupled as duplexer, no diversity
Using TMD412 coupled as duplexer, dual diversity
Using TMD412 coupled as amplifier, dual diversity
GPS antenna
One combined TX/RX
One TX/RX A, One RX B
One TX, One RX A, One RX B
Passive or Active (+5V DC)
Page 6 of 7
D100300-
Damm Cellular Systems A/S, Denmark
Doc. No.
Rev.
Date
D100300-REF
1.02
2012-10-09
BS411 Base Station
Combiner:
4-way cavity combiner, motor tuned
Channel spacing per cavity combiner
Two combiners installed as
Standard
>175kHz
Internal connectors between Base Station rack and TMD412:
RXA – RXB and Test
TX
N Female
7/16
External Connectors:
Directly on BS rack or TMD412:
2 x GPS antenna connector one for each BSC412
Earth Base Station
Earth TMD412
Via Connection Box
AC Mains connector 100 to 240 V AC (Phase, 0, GND)
External DC supply or battery connector -48V DC (-48, 0, GND)
- 48V out for external router/modem etc. (-48, 0, GND)
External battery temperature sensor
BSC1 and BSC2 Ethernet LAN/WAN connections
Number of RJ45 patch-field positions
External alarm connector (8xIn/GND and 2xOut/+14V)
External 1 sec. Sync (BSC1 and BSC2)
Power Supply:
Power source
Power consumption basic rack without carriers
Power consumption per active carrier at 10W output
Power consumption per “standby carrier
Power consumption with 8 active carriers at 8 x10W output
Output for external battery, adjustable
Output for other units, fixed, (alternative to charging battery)
Physical:
Rack 36U
Dimensions (HxWxD), excl. connectors
Weight, fully equipped
Storage temperature range
Operating temperature range
Encapsulation
TMD412:
Dimensions (HxWxD), excl. connectors
Weight (incl. Mounting accessories)
Wind area
Storage temperature range
Operating temperature range
Optional temperature range
Encapsulation
BNC on top of Rack
Rear right top of the rack
Mounting Plate
Screw-type for 6sq. mm. max
Screw-type for 10sq. mm. max
Screw terminal 3 x 2.5#
RJ12
RJ45 (x8)
LSA for 0,4-0,6 mm solid wire
LSA for 0,4-0,6 mm solid wire
-48V DC or 100-240VAC, 47-63Hz
50W
100W
14W
850W
-52,8 to 55,2VDC – max 14A
-48VDC - 12A
1721x542x520 mm
143kg
-40 C to +85 C
-20 C to +55 C
IP20
337x245x130mm
8.9kg
0.1sq.m
-55 to +70 Celsius
-25 to +55 Celsius
-55 to +70 Celsius
IP65
Note:
The Base Station is shipped to the end-customer having been fully assembled and tested at the factory in its final
configuration.
No other assembly is needed in the field except installing, connection to external components, power and lan / wan.
Damm checks each system that leaves the factory to secure that the system parameters meets all FCC and CE
requirements for output power and spurious emission. Installers are reminded to exercise great care in connecting the
system to external RF component and to check output power and spurious emission as for any RF system.
Page 7 of 7

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Page Count                      : 7
Language                        : en-US
Tagged PDF                      : Yes
Title                           : Description
Author                          : esb
Creator                         : Microsoft® Word 2010
Create Date                     : 2012:10:09 15:19:36+02:00
Modify Date                     : 2012:10:09 15:19:36+02:00
Producer                        : Microsoft® Word 2010

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