A L L G O N SYSTEM A B - Proprietary
Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]
Preliminary
-
Subjected
to change without notice
TOWER TOP POWER AMPLIFIER
PCS 1900MHZ / 20W
STANDALONE
TECHNICAL SPECIFICATION
Rev.pA0
File: 93651
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A L L G O N SYSTEM A B - Proprietary
Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]
Preliminary
-
Subjected
to change without notice
Rev.pA0
1 INTRODUCTION..........................................................................................................................................3
1.1 P
1.2 S
1.3 R
1.4 R
1.5 A
1.6 D
URPOSE
COPE
EVISION HISTORY
ELATED DOCUMENTS
BBREVIATIONS
EFINITIONS
............................................................................................................................................... 3
................................................................................................................................................... 3
.................................................................................................................................... 3
.............................................................................................................................3
....................................................................................................................................... 3
............................................................................................................................................ 3
2 PRODUCT VARIANT DEFINITION................................................................................................................5
2.1 D
2.2 O
EFINI TI O N OF THE AVAIL ABLE VARIANTS
PTION AL FUNCTION SEL ECTION GUIDE
.......................................................................................................5
........................................................................................................5
3 SYSTEM OVERVIEW...................................................................................................................................6
3.1 G
3.2 P
ENERAL
RINCIPLE OF OPERATION
............................................................................................................................................... 6
.........................................................................................................................7
4 ELECTRICAL SPECIFICATION...................................................................................................................10
4.1 A
4.2 G
4.3 T
4.4 R
4.5 F
4.6 P
BSOLUTE MAXIMUM RATINGS
ENERAL PARAMETERS
RANSMIT PATH PARAMETERS
ECEIVE PATH PARAMETERS
ILTER PARAMETERS
OWER SUPPLY PARAMETERS
..............................................................................................................................14
..................................................................................................................10
..........................................................................................................................10
..................................................................................................................11
...................................................................................................................13
.................................................................................................................14
5 MECHANICAL SPECIFICATION..................................................................................................................15
5.1 P
5.2 I
5.3 M
HYSICAL PARAMETERS
NTERFACES
OUNTING
.........................................................................................................................................15
............................................................................................................................................16
..........................................................................................................................15
6 ENVIRONMENTAL SPECIFICATION...........................................................................................................17
6.1 O
6.2 S
6.3 E
6.4 L
PERATING CONDITI ONS
TORAGE AND TRANSPORTATI ON
LECTROMAGNETIC COMPATIBILITY
IGHTNI NG PROTECTION
..........................................................................................................................17
..............................................................................................................17
(EMC) .................................................................................................18
...........................................................................................................................18
7 RELIABILTIY SPECIFICATION ...................................................................................................................18
7.1 O
7.2 T
7.3 F
PERATING LIFE
HEORETICAL
I EL D PROVEN
....................................................................................................................................18
MTBF..............................................................................................................................18
MTBF ............................................................................................................................19
8 SAFETY SPECIFICATION .......................................................................................................................... 19
8.1 T
8.2 S
OXIC MATERIALS
AFETY CLASSIFICATIONS
..................................................................................................................................19
........................................................................................................................19
9 SERVICE AND MAINTENANCE..................................................................................................................19
9.1 S
9.2 M
ERVICE
AINTENANCE
..............................................................................................................................................19
.......................................................................................................................................19
File: 93651
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A L L G O N SYSTEM A B - Proprietary
Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]
Preliminary
-
Subjected
to change without notice
Rev.pA0
1 INTRODUCTION
1.1 P
1.2 S
1.3 R
URPOSE
This document describes the Technical specificat ion for t he Allgon Tow er Top Power Amplifier f or the PCS
1900 cellular band. The product number specified in the header has different variants available. These
variant s have diff erent bandw idths, gain and options. A definit ion of the different available var iants and a
selection guide can be found in chapter 2.
COPE
The document details the total Technical performance of the TTPA, with respect to Electrical,
Mec hanical, Environmental, Saf et y and Reliab ility relat ed par amete rs . O nly the mast head mounted unit
is described in this document. Other related products, such as APDU and Current Injectors, are
described in other document s.
EVISION HISTORY
Rev. pA0 Draft 990518 M.Ö sterberg
Rev. Second draft
1.4 R
1.5 A
1.6 D
!
ELATED DOCUMENTS
TIA, PS No 3389
Technical Specification for APDU 9209
Technical Specification for CI 9219
BBREVIATIONS
TTPA Tower Top Pow er Amplifier
PDU Pow er Dist ribution Unit
APDU Alarm And Power Dis tributio n Unit
CI Current Injector
PCN Pers o nal Cellular Networ k
AGC Auto matic G a in Contr o l
ANT Antenna
BTS Base Transceiver Stat ion
LED Light Emitting Diode
MTBF Mean Time Be t w een Failures
MTTR Mean Time To Replace
PA Power Amplifier
EFINITIONS
Normal operating conditions:
The full operating performance specified in t his document is guaranteed under conditions stated below:
Ambient temperature: Acc. to chapter 7 , af ter 30 m i n nor mal operation.
Env ironm en t: Acc. to chapter 7 , af ter 30 m in normal oper ati on.
DC power supply: Acc. to chapter 4.
Return los s : > 18dB on al l RF ports.
File: 93651
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A L L G O N SYSTEM A B - Proprietary
Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]
Preliminary
Typical parameters:
!
All typical parameters are considered to be measured at an ambient t emperat ure of 20 °C, and air
pressure of 1013 mbar, after 30 min warm up, unless otherwise st at ed. The TTPA is designed for an
operating life exceeding 10 years.
-
Subjected
to change without notice
Mounting: Acc. to chapter 5.3
The parameters specified are guaranteed over the warranty time.
Rev.pA0
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A L L G O N SYSTEM A B - Proprietary
Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]
Preliminary
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Subjected
to change without notice
Rev.pA0
2 PRODUCT VARIANT DEFINITION
The TTPA are available with different frequency bands, together covering all PCS bands. A number of
optional functions (listed in 2.2) are available depending on configuration. The existing, and preferred
product configurations, are listen in 2. 1.
2.1 D
2.2 O
EFI NITI ON OF THE AVAILABLE VARIANTS
Variant
9228.01 A+D / 20 MHz 1850-1870 M Hz 1930-1950 M Hz 7 dB 1,4,6
9228.02 B+ E / 2 0 MHz 1870-1890 M Hz 1950-1970 MHz 7 dB 1,4,6
9228.03* C+F / 20 MHz 1890-1910 MHz 1970-1990 MHz 7 dB 1,4,6
*Future Product
PTI ONAL FUNCTION SELECTION GUIDE
Option
1. Fixed RX Gain 13dB 3.6.2 01,02,03
2. Separate DC connector 4.2.4
3. Separate Alarm connector 4.2.5 01,02,03
4. Redundant DC/DC 3.8.4
5. Antenna supervision 3.4.4
6. RX bypass 3.6.6
7. TX bypass 3.5.11 01,02,03
Band / width RX Freq.band TX Freq.band TX Gain Options
See Section
Included in variant #
File: 93651
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A L L G O N SYSTEM A B - Proprietary
Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]
Preliminary
-
Subjected
to change without notice
Rev.pA0
3 SYSTEM OVERVIEW
3.1 G
ENERAL
The PCS Tower Top Power Amplifier (TTPA) is int ended for use at sites where it is necessary t o improve
the coverage area. The TTPA boosts both the receive- path signal and t he t r ansmit power f r om one TRx in
order t o pr eser ve site link balance. TX and RX signal paths ar e separated by means of duplexers. The TX
Pow er Amplifie r (PA) , as well as the RX Low Noise Amplif ier (LNA), utilizes ba lanced ar chite ct ures t o add
redundancy.
The TTPA can also be used together w ith a micro or mini BTS t o reach coverage equivalent wit h a far
more expensive Macro BTS installation.
The TTPA has a small and lightw eight design, which enables it to be mount ed in the antenna tow er, near
the antenna. This means that less costly feeders can be used since the attenuation becomes of less
concern when the PA and t he LNA is situated near the antenna. DC power t o t he TTPA is supplied , via the
antenna feeder. The TTPA incorporat es an advanced self -supervision system that aut omat ically switches
the unit into bypass mode in t he event of malfunction or power f ailure.
RX/TX RX/TX
Figure 1. Typic a l s ite conf ig ura tion wit h Tower T op Amp lifiers .
MHB
TTA
RX
MHB
RX/TX
RX
RX
RX/TX
KEY PARAM ETERS
TX Gain: 7 dB
TX Power: +43 dBm (20W)
RX Gain: 13dB
BTS
File: 93651
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A L L G O N SYSTEM A B - Proprietary
Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]
Preliminary
3.2 P
RINCIPLE OF OPERATION
-
Subjected
3.2.1 General
The TTPA has the RX and the TX signal paths separat ed by means of duplex filter or isolat or s.
All circuit r y for power supply and super vision are included inside the unit.
The TTPA has two port s des ignated BTS and ANT. The BTS port c ar r ies t he signals t o/from t he
BTS rack (e. g. TX- in, RX-o ut, DC- pow er ). The ANT port w ill be co nnected t o t he antenna. See
figure 2 Basic TTPA Block Diagram.
BTS p ort
EXT.DC
opti on
EXT:ALARM
opti on
CI
&
LP
SYSTEM
CONTROLLE
to change without notice
dB
Inp u t P o w er
TX by p as s
RX byp ass
Rev.pA0
dB dB
Forwa rd
Power
Rever se
Power
ANT port
26V
DC/D C 26V
Figure 2. Block diagram of the Tower Top Pow er Amplifier.
3.2.2 Transmit Path
The Transmit path incorporates a balanced power amplifier with high linearity. An Automatic
Gain Control circuit ( AGC) keeps the gain at a constant level from input to ANT out put. TX-path
Bypas s is o p tional.
3.2.3 Receive Path
The Receive path consists of a balanced LNA w ith very low noise fact or. The LNA has a gain
change capability in orde r to c o mpe nsate f o r d iffe r e nt feeder loss es a nd op timize the link budget
on each sit e. RX byp a s s , which will c ut in at p o wer failure or LNA failure, is an opt io nal f unctio n.
dB
3.2.4 Power Supply
The Pow er Supply filters and regulates t he input DC power t o suit the amplifiers. DC power fed
into t he unit on the BTS input connector through t he feeder is standard. Separat e DC connector
and redundant DC/DC is optional.
File: 93651
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A L L G O N SYSTEM A B - Proprietary
Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]
Preliminary
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Subjected
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3.2.5 Supervision
A number of par ameter s ar e c onstantly supervis ed.
TX Power Amplifier:
Output power, VSWR (when input power wit hin specified limits), transistor cur rent s, voltages,
temperature and power supply. VSWR supervision optional.
RX LNA:
Transistor currents and power supply.
Control uni t:
The system cont r oller at start up and at certain intervals makes a system self-test.
3.2.6 Alarming
The TTPA has an alarm connector with two independent relay contacts and an auxillary input.
The Relays are assigned to different alarms depending on whether it is a Major or M inor alarm
(Relay 1=Major, Relay 2=Minor).
This facilit ates diff erent iation of minor a larms (not inter rupting tr ansmission) f rom major alarms
that indicates loss of transmission. All alarms can be gated to one by simply connecting the
contac ts in par a llel.
Rev.pA0
ALARM
Overtemp Cooling f lange above 80°C** RX_bypass****/TX Bypass**** 1
DC-Minor One DC/DC-convert e r faile d none 2
DC-Major**** No DC power to TT PA * TX Bypass 1
TX-Minor One PA Transist or f a iled None 2
TX-Major PA Failure, No Gain PA shutdown & TX Bypass 1
RX-Minor One LNA Tr ansistor f ailed None 2
RX-Major LNA Failure none 1
VSWR Al a r m**** VSWR > 2.5: 1* ** none 2
OP-Alarm Output Power over Limit none 2
IP-Alarm Input Power over Limit none 2
RP-Alarm**** Refl ected Power over Limit none 2
AGC-Alarm Ga in control f aile d Gain accuracy reduced 2
AUX-Al arm**** Auxillary input shorted none1 2
TTA_Minor **** Diversity TTA minor failure none 2
Cause
Action in TTPA
Relay #
File: 93651
TTA_Major**** Diversi ty TTA major failure none 2
SYS_Minor CPU System test failed none 2
SYS_Major CPU System test failed TX Bypass**** 1
* Either due to failur e of both DC/ DC converters, or no DC power applied to the unit.
** restart at + 60°C
*** Default value. Soft ware changeable level 2:1 to 5:1 is opt ional
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A L L G O N SYSTEM A B - Proprietary
Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]
Preliminary
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Subjected
**** Optional function, not support ed in all var iant.
to change without notice
Rev.pA0
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A L L G O N SYSTEM A B - Proprietary
Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]
Preliminary
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Subjected
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ELECTRICAL SPECIFICATION
3.3 A
3.4 G
BSOLUTE MAXIMUM RATINGS
The Absolut e M aximum Rating is defined as the value of applied signal/power etc. that is guar anteed not
to damage the unit permanently. This applies over the full operat ing temperature range of the unit.
Parameter
3.1. 1 I nput DC Voltage (low imp. Source) - -70 V
3.1. 2 Reverse Input DC Voltage 75 - V
3.1. 3 I nput Power on BTS port (TX-band) 40 - dBm
3.1. 4 I nput Power on ANT por t (TX-band) 43 - dBm
3.1. 5 I nput Power on BTS port (RX-band) 20 - dBm
3.1. 6 I nput Power on ANT por t (RX-band) 20 - dBm
3.1. 7 I nput Power on ANT por t ( other bands ) 43 - dBm
3.1. 8 I nput Power on BTS port (other bands) 40 - dBm
ENERAL PARAMETERS
MAX
MIN
Rev.pA0
Unit
3.4.1 Nominal Impedance
Nominal impedance of all port s : 50Ω
3.4.2 Return Loss
Measured over the tuned Rx and Tx band.
Normal operation: Bypass:
BTS port: > 18 dB BTS port > 12 dB
ANT por t: > 18 dB Ant port: > 12 dB
3.4.3 Power Consumption
Max: 130W (2.5A @48V)
Primary Fuse: 4 A Slow
3.4.4 Antenna Supervision (VSWR) (option 5)
This opt ionally feature monitors the For ward and Reflected power at the ANT por t. If calculated
VSWR exceeds the VSWR LIMIT, a VSWR-alarm is issued. The VSWR value below is the
default value and is optionally softwar e c hangeable from 2:1 t o 5: 1.
VSWR Return Loss
VSWR LIMIT: 2.5:1 ~7.4 dB
The VSWR-alarm is active down to an average output signal power > 20 dBm.
3.4. 5 Reflect ed Output Po wer Supervision
If the reflected power from the antenna exceeds +38 dBm, the reflected power supervision
function will decrease the TX gain in order to limit the reflected power to a level less than
+38dBm. An RP_Alarm alarm will be is s ued in t his co ndit io n .
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A L L G O N SYSTEM A B - Proprietary
Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]
Preliminary
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3.4. 6 To t al Feeder DC Resistance and Maximu m Feeder L ength
Maximum length: 250 m (833 ft)
Maximum feeder DC resist ance: 2Ω
Measured between the inner and outer connect or w it h the other feeder end short circuited.
**Note: O nly valid when using feeder cable f or DC-feed.
3.4.7 Intermodulation Distorsion
The measurements ar e made on both ports with the TTPA operating at its nominal rated output
power and with:
Two interfer ing signals in the PCS- RX band at a power level of -40 dBm at ANT port.
One int er fering signals in the PCS-TX band at a power level of +13 dBm at ANT por t .
Maximum IMD le vel:
Band
RX - 128 dBm -114 dBm 100 kHz
TX -70 dBc -70 dBc 100 kHz
ANT por t
BTS port
Meas BW
Rev.pA0
3.5 T
RANSMIT PATH PARAMETERS
3.5.1 TX Operating Frequency
See section 2.1
-
3.5.2 TX Nominal Output Power
Measured at the ANT port, wit hin the t uned TX band.
Min: +43 dBm (20W )
3.5. 3 TX Overl oad Su pervisi on
When the average Output Power exceeds 43 dBm with:
> 1.0 dB an TX-OP Minor Alarm (TX Over Power) alar m is issued
> 2.0 dB t he TX power is soft limited by the AGC circuitry not to exceed this value.
and a TX-OP Major Alarm is issued.
3.5.4 TX Two Tone Linearity
Measured with two CW s ignals of 37dBm each (43dBm Peak Power) out from the unit in TX
band, giving 40dBm total average output power. M ax 1MHz spacing between tones.
Level of IM-t ones Max: -30dBc
3.5.5 TX Nominal Gain
Nominal Gain is defined as [MaxGain( inband) + MinGain( inband)] / 2
7dB
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A L L G O N SYSTEM A B - Proprietary
Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]
Preliminary
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3.5. 6 TX Gain Tol erance
Measured with AGC in operation.
Nominal gain ± 0. 5 dB
3.5. 7 TX Gain Ripp le
Ripple is defined as [ M axGain(inband) - M inGain(inband)]
Max: 1 dB
3.5. 8 TX AGC Operation
The AGC system continuously holds the TX-gain at nominal value.
If the system fails to regulate t he power a PA-fail alarm is generated.
The AGC time constant is chosen to compensate for thermal and other long term drift.
Minimum average input power level for AGC operation: +20 dBm.
TX gain tolerance with AGC not operating: ±1. 5dB.
3.5.9 TX Stability
The TX-amplif ier is unconditionally stable for all passive loads at input and output.
Rev.pA0
3.5.10 TX Spurious Emissions and Broadband Noise
Measured at ANT port, w ith the TTPA operating at nominal output power.
Peak power and measurement bandwidth as listed in t able.
Outside T X band:
Frequency band Max peak power / Bandwidth
RX band - 128 dBm / 100 kHz
1850-1910 MHz - 98 dBm / 100 kHz
824 - 849 MHz - 98 dBm / 100 kHz
100 kHz - 50 M Hz - 36 dBm / 10 kHz
50-1000 MHz - 36 dBm / 100 kHz
1 – 12.75 GHz, outside TX band >+ 2 MHz - 30 dBm / 30 kHz
“ >+ 5
MHz
“ >+ 10
MHz
“ >+ 20
MHz
“ >+ 30
MHz
Inside TX band:
- 30 dBm / 100 kHz
- 30 dBm / 300 kHz
- 30 dBm / 1 MHz
- 30 dBm / 3 MHz
File: 93651
Frequency band Max peak power / Bandwidth
Carrier offset > + 1. 8 M Hz - 36 dBm / 30 kHz
Carrier offset > + 6 MHz - 36 dBm / 100 kHz
Page 12 (19) 29 Mar 00
A L L G O N SYSTEM A B - Proprietary
Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]
Preliminary
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3.5. 11 TX Bypass Lo ss ( option 7)
TX bypass function is opt ional.
Measured from ANT to BTS port
Typ. 2. 0 dB
Max: 2.6 dB
3.5.12 TX Redundancy & Bypass Operation
In the event of failure of one of the transistors in the power amplifier the gain will drop by
approx. 6dB. In this condition a TX-minor alar m will be generat ed. I f b oth t ransist or s f ail and t he
TX Bypass option is installed, the TX-path will be switched to bypass mode and a TX-major
alar m w ill b e is s ued. Bypas s mode w ill a ut oma tically b e initia ted if DC p o wer to t he PA f a ils .
3.6 R
ECEIVE PATH PARAMETERS
3.6. 1 RX Operating Frequ ency
-See section 2.1
Rev.pA0
3.6.2 RX Gain
Nominal Gain is defined as [MaxGain( inband) + MinGain( inband)] / 2
13 dB
Optionally reduced in 1 dB steps from 13 to 7 dB.
3.6. 3 RX Gain Toleran ce
±0.6 dB
3.6. 4 RX Gai n Rip ple
Ripple is defined as [ M axGain(inband) - M inGain(inband)]
±0.5 dB
3.6. 5 RX Noise Figure
Measured at Nominal RX gain.
Typ: 1. 9 dB
Max: 2.9 dB
3.6. 6 RX Bypass Loss ( o ption 6 )
RX bypass function is optional.
Measured from ANT to BTS port
Typ. 2.2 dB
Max 2.9 dB
3.6.7 RX Input Intercept Point IIP3
Min: +6dBm
File: 93651
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A L L G O N SYSTEM A B - Proprietary
Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]
Preliminary
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Subjected
3.6.8 RX Stability
The RX- amplifier is unconditionally stable for all loads at input and output of the TTPA.
3.6.9 RX Redundancy
In the event o f failure o f one of the tr a nsistor s in the ba la nced LNA t he g a in will drop by a p p r o x.
6dB. An RX-mi nor alarm w ill be gener ated. If b oth tra ns istor s fail, an RX-major alarm will be
generated.
3.7 F
ILTER PARAMETERS
Rx and Tx bands according t o par agr aph 2.1
Isolation ANT to LNA input
DC – 1000 90 dB
1000 – {35 MHz below Rx Band} 30 dB
1910 – 1990 50 dB
Tx Band (20 M Hz wide) 85 dB
1990 – 5970 40 dB
5970 – 12750 20 dB
to change without notice
Rev.pA0
3.8 P
OWER SUPPLY PARAMETERS
3.8.1 Supply Voltage
- 48 Vo lts DC
3.8.2 Supply Voltage Tolerance
Measured at BTS port.
Max: -60V
Min: -40 V
3.8.3 Supply Voltage Noise Tolerance
! Ripple and noise 10Hz to 100 MHz: 100 mVp- p
! W ideband noise 4k Hz to 20 MHz, any 3kHz band: 1V p-p
3.8.4 DC/DC Redundancy (option 4)
The pow er supply consists of two DC/DC convert ers in parallel, sharing t he cur rent. In the case
off one conve rter f ailing, t he remaining converter will pow er t he unit to full ope ration. An a larm
(DC- minor) will b e s ig naled to t he PDU. I f bot h DC/ DC c onverters fails, or no po wer is a p p lied to
the unit, the APDU detects this automatically and raises an alarm.
3.8.5 DC Input Protection
! Reverse Voltage Prot ect ion
! Over volt age Pr ot ection ( see lightning spec.)
! Over current prot ection
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A L L G O N SYSTEM A B - Proprietary
Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]
Preliminary
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Subjected
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3.8.6 Inrush Current
Measured at power on with nominal supply voltage.
Max peak: 15A
Max after 10ms: 3A
4 MECHANICAL SPECIFICATION
4.1 P
4.1.1 Height
4.1.2 Width
4.1.3 Depth
HYSICAL PARAMETERS
350 mm ( ±20mm)
220 mm (±20mm)
230 mm (±20mm)
Rev.pA0
4.1.4 Volume
3
17 dm
4.1. 5 Wei ght - Clampi ng Unit
3 kg
4.1.6 Weight - Amplifier Unit
12 kg (26.5 lb)
4.1.7 Color
RAL 7035 and Nature Anodized Aluminum, non reflective.
4.1.8 Wind Load
~155 N @ 150 km/h (41.67 m/s)
4.1.9 Materials
All plastic materials are characterized according to ISO 1043.
4.1.10 Weatherproofing
UL50/IP 65
4.2 I
File: 93651
NTERFACES
The TTPA has total of tw o (2) ports des ignated BTS and ANT. The BTS Connect or carries the s ignals
to/from the BTS rack (e.g. TX-in, RX-out, DC-power and Alarm signaling). The ANT connector should be
connect ed t o the ant enna.
Page 15 (19) 29 Mar 00
A L L G O N SYSTEM A B - Proprietary
Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]
Preliminary
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4.2.1 BTS Connector
7/16 Female
4.2.2 ANT Connector
7/16 Female
4.2.3 Earthing
Ear thi ng stud: M8 x 15m m
4.2.4 DC Connector (option 2)
Optional DC connector f or separ ate DC, see 2.2
Type: Binder series 623 , 6 poles, male
4.2. 5 Alarm Co nnecto r ( option 3)
Optional alarm connector, see 2.2
Type: Binder series 623 , 12 poles, male
4.2. 6 Power ON LED
Optional LED, indicating POWER ON
Color : Gr e e n
Rev.pA0
4.3 M
OUNTING
NOTE: DC power must be connected to the TTPA within one day after mounting to prevent
damage due to moisture.
4.3.1 Mounting method
The TTPA is equipped w ith a pole clamping unit. This enables the installation per sonnel to first
install the relatively light mast clamp, and t hen easily hook on the actual amplifier. This feature
reduces the risk of accidents during installation.
! Pole mount ing with clamps. Pole diamet er : 50 - 120 mm
! W all mounting by means of mounting plate.
4.3.2 Mounting Time
The unit is designed to be easily mounted by normally skilled installation personnel in less than
20 minutes. ( Not including commissioning )
4.3.3 Mounting Requirements
! The unit must have non obstructed f ree air to a distance of 0.5m fr om TOP and BOTTO M
sides, and 0.2 m from all other sides, except BACK side.
! Mounting angle: Vertically ±10° (Applies to completed mounting, TTPA in operation)
4.3.4 MTTR
Less than 15 min (excluding commiss ioning )
File: 93651
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Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]
Preliminary
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5 ENVIRONMENTAL SPECIFICATION
5.1 O
5.1. 1 Ambi ent Air T emperature Full Perfo rmance
5.1. 2 Survival Operation al Temperature
5.1.3 Relative Humidity
PERATING CONDIT IONS
( Conditions: The unit mounted in f r ee air, DC pow er applied at all times.)
Max: + 50 °C
Min: - 35 °C
Max: + 80 °C
Min: - 40 °C
When t he inter nal temperature exceeds +80°C the power is r educed and t he transmission path
goes into bypass mode. Resets automatically when the temperature decreas es.
Max: 100 %
Min: 8 %
Rev.pA0
5.1.4 Absolute Humidity
Max: 30 g/m
Min: 0.26 g/m
3
3
5.1. 5 Rate of Temperatu re Chang e
Max: 1°C/min ( a mb i e nt )
5.1.6 Air Pressure
Max: 106 kPa
Min: 70 kPa
5.1.7 Solar Radiation
Max: 1125 W/m2 (with solar cover)
5.1.8 Vibration
According to: ETS 300 019-2-4
5.1. 9 App licable Test S t andard s
ETS 300 019-2-4 class T4.1
80 / 85 envir onmental test
5.2 S
TORAGE AND TRANSPORTATION
( Conditions: 6 months storage of unit in original shipping container with int ac t sealing )
5.2. 1 Ambi ent Air T emperature
Max: + 85 °C
Min: - 45 °C
File: 93651
Page 17 (19) 29 Mar 00
A L L G O N SYSTEM A B - Proprietary
Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]
Preliminary
-
Subjected
to change without notice
5.2.2 Relative Humidity
Max: 100 %
Min: 8 %
5.2.3 Absolute Humidity
Max: 30 g/m
Min: 0.26 g/m
3
3
5.2. 4 Rate of Temperatu re Chang e
Max: 2°C/min ( a mb i e nt )
5.2.5 Air Pressure
Max: 106 kPa
Min: 50 kPa
5.2.6 Vibration
According to: ETS 300 019-2-1
ETS 300 019-2-2
IEC 68-2-6
IEC 68-2-36
IEC 68-2-29
IEC 68-2-32
Rev.pA0
5.2. 7 App licable Test S t andard s
Transport: ETS 300 019-2-2 class T2. 3
Storage: ETS 300 019-2-1 class T1.2
5.3 E
5.4 L
LECTROMAGNETIC COM PATIBILITY
Complies to: ETS 3000 342-2
IEC 1000-4-5
FCC Par t 24
FCC Par t 15
IGHTNING PROTECTION
According to IEC 1000-4-5 extended to 10 kA short circuit current.
ANT por t DC grounded
(EMC)
6 RELIABILTIY SPECIFICATION
6.1 O
PERATING LIFE
The TTPA is designed for an operating life exceeding 10 years.
6.2 T
File: 93651
HEORETICAL
Theoretical MTBF is calculated according to MIL-HDBK-217F, part stress method, ground fixed,
uncontrolled envir onment, 40°C ambient temperature. If available, practically derived reliability data is
used in place of st atistical in the calculat ion. This calculation yields an MTBF of > 25000 hours.
MTBF
Page 18 (19) 29 Mar 00
A L L G O N SYSTEM A B - Proprietary
Technical Specification for PCS Tower Top Power Amplifier [Allgon 9256]
Preliminary
Note: the calculated M TBF gives a very conservative value. Especially when the components MTBF is
based on the default data specified in MIL-HDBK-217F and not from an accelerated life time test. If
such data was available on every component then a result close to the field proven MTBF could be
calcul ated.
6.3 F
I ELD PRO VEN
The TTPA is designed to demonstrate a field proven MTBF of over 200000 hours, calculated over a
period exceeding one (1) year .
-
Subjected
MTBF
to change without notice
7 SAFETY SPECIFICATION
7.1 T
7.2 S
OXIC MATERIAL S
No toxic materials is used within the unit.
AFETY CLASSIF ICATIONS
CE-Recognit ion: EN 60950
UL-Classification: UL 1950
Rev.pA0
8 SERVICE AND MAINTENANCE
8.1 S
8.2 M
ERVICE
No field serviceable parts inside. Failed unit must be returned to Allgon.
Service only by qualified personnel authorized by Allgon.
AINT ENANCE
No periodic maintenance necessary.
File: 93651
Page 19 (19) 29 Mar 00
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