PEAK COMMUNICATIONS UPC7000 Series Installation And Operating Handbook
Handbook Issue 2.03, 22nd January 2018
PEAK COMMUNICATIONS Ltd.
Unit 1, The Woodvale Centre, Woodvale Road,
Brighouse, West Yorkshire
HD6 4AB, England
Phone +44 (0)1484 714200
Fax +44 (0)1484 723666
IMPORTANT NOTE: THE INFORMATION AND SPECIFICATIONS
CONTAINED IN THESE DOCUMENTS SUPERSEDE ALL PREVIOUSLY
PUBLISHED INFORMATION CONCERNING THESE PRODUCTS
Installation and Operating Handbook
UPC7000 Series Automatic Up-Link Power
Controller
Covers software version 1.68 and above
Issue 2.03 UPC7000 Series Automatic Up-Link Power Control Unit Page 2
Table of Contents
CUSTOMER CARE ...................................................................................................................................... 5
PRODUCT COMPLIANCE........................................................................................................................... 6
Safety ....................................................................................................................................................... 6
EMC .......................................................................................................................................................... 6
1. INTRODUCTION ...................................................................................................................................... 7
1.1 General product overview & principles of operation ........................................................................... 7
1.2 Functional description ......................................................................................................................... 8
1.2.1 Internal Beacon Receiver – Functional description & operating suggestions. ........................... 10
1.3 UPC7000 Specifications ................................................................................................................... 11
1.3.1 Input Section .............................................................................................................................. 11
1.3.2 UPC Section ............................................................................................................................... 12
1.3.3 Output Section ............................................................................................................................ 13
1.3.4 General ....................................................................................................................................... 14
1.4 Review of UPC7000 Specification parameters ................................................................................. 14
1.4.1 External Beacon Receiver ....................................................................................................... 15
1.4.1.1 External Beacon Receiver Input .......................................................................................... 15
1.4.2 Internal Beacon Receiver DownConverter section ............................................................... 15
1.4.2.1 DownConverter Input ........................................................................................................... 15
1.4.2.2 DownConverter resolution ................................................................................................... 15
1.4.2.3 DownConverter Conversion Gain ........................................................................................ 15
1.4.2.4 Auxiliary DC output .............................................................................................................. 15
1.4.2.5 10MHz reference output ...................................................................................................... 15
1.4.3 Internal Beacon Receiver Tracking Section .......................................................................... 15
1.4.3.1 Tracking Output ................................................................................................................... 15
1.4.3.2 Tracking Level ..................................................................................................................... 15
1.4.3.3 Sweep Range ...................................................................................................................... 16
1.4.3.4 Sweep Rate ......................................................................................................................... 16
1.4.3.5 Post Detection Time Constant ............................................................................................. 16
1.4.3.6 Log Output Scale ................................................................................................................. 16
1.4.3.7 DC Output Adjustment ......................................................................................................... 16
1.4.3.8 PLL Noise Bandwidth .......................................................................................................... 16
1.4.3.9 Threshold for Reacquisition ................................................................................................. 16
1.4.3.10 ASB Sweep Rate ............................................................................................................... 16
1.4.3.11 ASB Threshold................................................................................................................... 16
1.4.4 Internal Beacon Receiver Video Section ............................................................................... 16
1.4.4.1 Video Input ........................................................................................................................... 16
1.4.4.2 Video Resolution .................................................................................................................. 16
1.4.4.3 Vertical Resolution ............................................................................................................... 17
1.4.4.4 Video Section Attenuator ..................................................................................................... 17
1.4.4.5 Reference frequency ........................................................................................................... 17
1.4.5 UPC Section .............................................................................................................................. 17
1.4.5.1 Compensation Range .......................................................................................................... 17
1.4.5.2 Step Size. ............................................................................................................................ 17
1.4.5.3 Compensation ratio. ............................................................................................................ 17
1.4.5.4 Slew Rate. ........................................................................................................................... 18
1.4.5.5 Sample Period. .................................................................................................................... 18
1.4.6 Output Section ......................................................................................................................... 18
1.4.6.1 Internal UpLink Channel Compensation Circuit Input. ......................................................... 18
1.4.6.2 Internal UpLink Channel Compensation Circuit Output. ...................................................... 18
1.4.6.3 Optional Internal UpLink Channel Compensation Circuit Bypass Connections. ................. 18
1.4.6.4 1dB Gain Compression Point. ............................................................................................. 18
1.4.6.5 Insertion Loss and Attenuation. ........................................................................................... 19
1.4.6.6 Gain Flatness....................................................................................................................... 19
1.5 Mechanical description ..................................................................................................................... 19
1.6 Front panel description ..................................................................................................................... 20
1.7 Rear panel description ...................................................................................................................... 20
1.7.1 Chassis Earth stud ..................................................................................................................... 20
Page 3 UPC7000 Series Automatic Up-Link Power Control Unit Issue 2.03
1.7.2 Rx In ........................................................................................................................................... 21
1.7.3 Rx Out/ External Beacon Input ................................................................................................... 21
1.7.4 Ext Ref........................................................................................................................................ 21
1.7.5 UpLink Channel Compensation ‘In’. ........................................................................................... 21
1.7.6 UpLink Channel Compensation ‘Out’. ........................................................................................ 21
1.7.7 UpLink Channel Compensation ‘Bypass’. .................................................................................. 21
1.7.8 Alarms connector ....................................................................................................................... 21
1.7.9 RS232/RS485 Remote Control connector ................................................................................. 21
1.7.10 Redundancy ............................................................................................................................. 22
1.7.11 Ethernet connector ................................................................................................................... 22
1.8 Fault philosophy ................................................................................................................................ 22
2. INSTALLATION ..................................................................................................................................... 24
2.1 Care of Your Product ........................................................................................................................ 24
2.1.1 Handling ..................................................................................................................................... 24
2.1.2 Unpacking and Inspection .......................................................................................................... 24
2.1.3 Storage ....................................................................................................................................... 24
2.1.4 Cleaning & Maintenance ............................................................................................................ 25
2.2 Mechanical Installation Considerations ............................................................................................. 25
2.2.1 Mounting ..................................................................................................................................... 25
2.2.2 Cooling ....................................................................................................................................... 25
2.3 Prime Power Supply & Connection ................................................................................................... 26
2.3.1 Fuses.......................................................................................................................................... 26
2.3.2 Earthing ...................................................................................................................................... 27
2.4 Other Interface Connections ............................................................................................................. 27
2.4.1 Internal Beacon Receiver L-band Connection............................................................................ 27
2.4.2 Internal Beacon Receiver SHF Connection................................................................................ 27
2.4.3 Internal Beacon Receiver Auxiliary Output Connection ............................................................. 27
2.4.4 External Beacon Receiver DC Input Connection ....................................................................... 28
2.4.5 External Reference Input Connection ........................................................................................ 28
2.4.6 UpLink Channel Compensation Connections – In, Out, Bypass ................................................ 28
2.4.7 Alarms Interface Connection ...................................................................................................... 28
2.4.8 Remote Serial Communications Interface (RS-232/RS-485) ..................................................... 29
2.4.9 Redundancy Interface Connector............................................................................................... 30
3.1 Home menu ...................................................................................................................................... 34
3.1.1 Operating displays ...................................................................................................................... 34
3.1.1.1 UPC Display ........................................................................................................................ 34
3.1.1.2 Rx Level Display Screens .................................................................................................... 35
3.1.1.2a Internal Beacon Receiver .................................................................................................. 35
3.1.1.2b External Beacon Receiver ................................................................................................. 35
3.1.1.3 Beacon Video Display Screen (only shown if internal Beacon Receiver is fitted) ............... 35
3.1.2 Status screen ............................................................................................................................. 36
3.1.3 Configuration screen .................................................................................................................. 36
3.1.3.1 UPC Configure..................................................................................................................... 37
3.1.3.1.2 Calibration ......................................................................................................................... 38
3.1.3.1.2.1 Clear Sky ....................................................................................................................... 38
3.1.3.1.2.2 Clear Sky Offset ............................................................................................................ 38
3.1.3.2a Tracking Configuration screen (internal tracking only) ...................................................... 42
3.1.3.2b External Beacon Configuration screen (external tracking receiver only) ........................... 49
3.1.3.3 EXP Configure ..................................................................................................................... 50
3.1.3.4 Pilot Configure ..................................................................................................................... 51
3.1.3.5 Remote Control ................................................................................................................... 53
3.1.3.5.1 Set remote mode .............................................................................................................. 53
3.1.3.5.2 Setup RS485 .................................................................................................................... 53
3.1.3.5.3 Setup RS232 .................................................................................................................... 53
3.1.3.5.4 Set Protocol ...................................................................................................................... 53
3.1.3.5.5 Ethernet (Optional) ........................................................................................................... 53
3.1.3.6 Redundancy ......................................................................................................................... 54
3.1.3.6.1 Identifier ............................................................................................................................ 55
3.1.3.6.2 Change Over .................................................................................................................... 55
3.1.3.6.3 List Units In System .......................................................................................................... 55
Issue 2.03 UPC7000 Series Automatic Up-Link Power Control Unit Page 4
3.1.4 Log ............................................................................................................................................. 56
3.1.5 Service ....................................................................................................................................... 56
3.1.5.1 Fan .......................................................................................................................................... 56
3.1.5.2 Tracking Rx LUT ..................................................................................................................... 57
3.2 Setup ................................................................................................................................................. 59
4. REDUNDANCY ...................................................................................................................................... 61
4.1 1+1 Redundancy (switched) ............................................................................................................. 61
5. REMOTE CONTROL ............................................................................................................................. 63
5.1 P7xxx Protocol .................................................................................................................................. 63
5.2 Remote control version ..................................................................................................................... 87
5.3 Ethernet remote control (Optional) ................................................................................................... 88
APPENDIX 1 Terms and conditions of sale ........................................................................................... 90
Page 5 UPC7000 Series Automatic Up-Link Power Control Unit Issue 2.03
CUSTOMER CARE
Contact the Peak Communications sales department for:
Product operation, application support or training requests
Information for returning or upgrading a product
Comments or suggestions on any supplied literature
Contact Information
Peak Communications Ltd
Attention: Sales Department
Unit 1, The Woodvale Centre,
Woodvale Road,
Brighouse
West Yorkshire
HD6 4AB
England
Tel. +44 (0) 1484 714200
Fax +44 (0) 1484 723666
E-mail Sales@peakcom.co.uk
You can also contact us via our website at www.peakcom.co.uk
To return a Peak Communications product for repair:
1. Contact the Peak Communications sales department and request a
Return Material Authorisation (RMA) number.
2. You will be required to provide to our sales representative the model
number, serial number and a detailed description of the problem.
3. To prevent any damage to the product during shipment we
recommend that the unit is returned in its original packaging or if this
is not available the packaging used must be of an equal standard.
4. Return the product back to Peak Communications and advise
shipment details to sales representative for tracking purposes. (Any
shipping charges should be prepaid)
For information regarding our warranty policy see Appendix 1 Terms and
conditions of sale.
Issue 2.03 UPC7000 Series Automatic Up-Link Power Control Unit Page 6
PRODUCT COMPLIANCE
Safety
To ensure safety of operator the UPC7000 series of Control Units have been
designed to comply with the following safety standard;
EN 60950: Safety of information technology equipment, including electrical
business machines.
Operation of the equipment in a non-standard manner will invalidate compliance
to this standard.
The equipment MUST BE OPERATED WITH ITS LID ON AT ALL TIMES. If it is
necessary to remove the lid for any purpose then it is essential that the lid is
fitted back correctly before normal operation.
DANGEROUS VOLTAGES ARE PRESENT AROUND THE POWER SUPPLY
AND PRECAUTIONS MUST BE TAKEN.
EMC
The UPC7000 series of Control Units have been designed to comply with the
following standards;
Emissions: EN 55022 Class B; Limits and methods of measurement of
radio interference characteristics of Information Technology Equipment.
Immunity EN 50082 Part 1; Generic immunity standard, part 1: Domestic,
commercial and light industrial environment.
Damage to the keyboard membrane or mechanical damage to the chassis will
also invalidate compliance; please contact the factory under these
circumstances for advice on continued operation.
Interfaces to the UPC7000 Series of Control Units must be made with suitably
screened connectors and double screened coaxial cable. Data cables must be
double screened.
All 'D' type connectors must have grounding fingers on the plug shell to
guarantee continuous shielding. The back-shells must comply to the
requirements of VDE 0871 and FCC 20708, providing at least 40 dB of
attenuation from 30 MHz to 1 GHz.
Installations which do not comply with this requirement will invalidate the EMC
specifications.
Page 7 UPC7000 Series Automatic Up-Link Power Control Unit Issue 2.03
1. INTRODUCTION
1.1 General product overview & principles of operation
Fig. 1 - UPC7000 L-band Up-Link Power Controller
This Manual covers the installation and operation of the UPC7000 family of Up-Link
Power Controller units. A specification for the UPC7000series L band Up-Link
Power Controller is incorporated in this manual but is not guaranteed to be the
latest, so please visit our website www.peakcom.co.uk for up to date specifications.
The signal transmitted from a satellite earth station is subjected to unwanted signal
level variations caused by the natural effects of atmospheric weather conditions
(commonly and generally referred to as ‘rain fade’), this can be severe in some
cases with up to 30dB of variation seen. In order to maintain a constant ‘link’ power
level, this automatic uplink power control unit (UPC) uses the DC output from a
beacon receiver, operating on the downlink from the same geostationary satellite
as the uplink, to derive ‘compensation’ settings of variable attenuators that are
positioned within the uplink signal path. The Beacon receiver signal is affected in a
similar way to the transmitted signal, apart from frequency propagation differences
for which the user can make compensation adjustments.
The user is required to calibrate the UPC system in ‘clear-sky’ conditions which
sets the maximum attenuation of the variation range in each uplink path. The
attenuators used have a range of 0 to 30dB, but the maximum variation allowed
can be ‘limited’ to avoid saturating the uplink high power amplifier (HPA) by
selecting the most appropriate compensation range from the front panel (1, 2, 5, 10
or 30dB typically). The surplus attenuation range can also be used to set individual
uplink channels to differing base levels. It is important to note that the UpLink gain/
‘link budget’ and overall design should be such that a linear operation is achieved
over the full adjustment range of the UPC unit.
For fail-safe conditions, in the event of the Beacon signal being lost or
disconnected, the compensation settings will remain fixed at the point of loss and a
warning flagged to the user. In the event of an internal equipment fault (includes
power disconnection etc.), each compensation channel will revert to a ‘bypass’
mode (optional to be specified at time of order placement), where an external fixed
Issue 2.03 UPC7000 Series Automatic Up-Link Power Control Unit Page 8
attenuator (user selectable) is automatically placed in-circuit instead of the internal
variable attenuator. Please note that if this UPC unit is being used in combination
with external Peak converters (fitted with attenuators), bypass circuitry is not
required and the external attenuator will remain at the previous setting.
Fig. 2 - Basic RF Block Schematic.
1.2 Functional description
UPC7000 series controllers are housed in a 1U high 19" rack mount chassis and
are designed to provide automatic gain adjustment compensation for a number of
uplink channels. The compensation and attenuator setting is based on the DC
voltage from either an internal or external Beacon Receiver that is proportional to
the signal level being received from a geostationary communications satellite (this
can be either a dedicated Beacon signal or a looped-back carrier).
The signal levels of a number of uplink channels are adjusted via either internal
attenuators (Fig. 3) or the control of external attenuators fitted to Peak agile or BUC
frequency converters (Fig. 4). The 1RU chassis supports up to 4 uplink channels,
thereafter ‘expansion’ units are provided to increase to 10-channels and beyond,
these are configured as ‘slaves’ to the main UPC unit.
For units with internal L-Band compensating channels, these units can be provided
with a DC & 10MHz pass option. DC & 10MHz are often multiplexed onto L-Band
Page 9 UPC7000 Series Automatic Up-Link Power Control Unit Issue 2.03
UpLink signals to provide power and an external ‘station clock’ derived reference
signal for Block Up Converter’s or Power BUC’s (HPA’s). If this option has been
ordered and fitted, then the unit is configured to allow these signals through from
the UpLink channel input ‘In’ to the output ‘Out’ without being affected by the
internal circuitry.
The UPC7000 units can provide a high stability 10MHz reference signal and 22.5V
DC to power an external Block DownConverter/ LNB via the Beacon Receiver input
connection.
The UPC7000 series of converters will interface with the Peak range of redundancy
units for N+1 switching, using the CANBUS® interface. For more details please
contact the factory.
Fig. 3 – UPC shown with Internal Compensating Channels.
Issue 2.03 UPC7000 Series Automatic Up-Link Power Control Unit Page 10
Fig. 4 – UPC shown controlling external Peak converter units.
1.2.1 Internal Beacon Receiver – Functional description & operating suggestions.
Functional Description;
The UPC7000 series when fitted with the internal Beacon Receiver option will
down convert an L-Band signal to an IF of 70 ±18MHz, the signal is then split
between the tracking function and the video display function, The tracking function
then uses a coherent detector to lock to the ‘CW’ beacon and measure the power
of the beacon signal. The video function uses a detector with switchable IF filters
to display the required band on the front panel display allowing the required signal
to be conveniently monitored. The display can be used for system fault location,
routine maintenance and can be an effective alternative to a fully functional
spectrum analyser, which may not be necessary for these tasks.
The units also incorporate a switchable, single sweep digital anti-sideband
detector to prevent the unit locking to beacon sidebands (the video function is
only available when the ASB function has finished). The unit features a large
graphic LCD display, membrane keyboard and menu driven software for control
and configuration of the unit. The units have built in 1+1 redundancy control and
can be remotely controlled via a RS232/485 port (optional Ethernet is available
supporting TCP, SNMP and an internal web-browser function).
The UPC7000 series are fully software controlled; there are no links or switches
used to configure the unit. This enables all control and configuration to be
programmed either locally or by remote control. All of the configuration
Page 11 UPC7000 Series Automatic Up-Link Power Control Unit Issue 2.03
parameters are stored in non-volatile memory that will retain data for a minimum
of 5 years with no power applied.
Operating suggestions;
The following are suggested set points to enable the customer to get the best use
out of the unit with the minimal of time.
Tracking sweep range of 50kHz.
Sweep time of 5kHz/s.
Log output of 2dB/V.
The Coherent detector operates ideally with a post DownConverter level of
between –60dBm to –90dBm, so by using the variable gain of the DownConverter
section the optimum level can be achieved i.e. with an expected signal of –
100dBm the DownConverter should be set towards its maximum gain of 20dB
and with an expected signal of –70dBm the gain should be set towards the
minimum of 0dBm.
When the expected signal exceeds –80dBm then it is suggested that the optional
video 10dB pad is turned on, to prevent compression of the video section (this
does not affect the tracking section).
The ASB function is active for a single sweep when the unit has first locked, the
down converted spectrum is swept and monitored for a higher signal and if one is
found then the main receiver is forced to check the rest of the spectrum. This
results in the unit locking to the highest-level signal in its sweep range. Due to the
digital analysis of the bandwidth the ASB will take around 10 minutes to complete
a full sweep. It is suggested that when the unit is used on a non-sideband beacon
the ASB function should remain off.
1.3 UPC7000 Specifications
This specification is provided to show typical values and explain the parameters
involved. The specification may change so please refer to our website
www.peakcom.co.uk for the latest up to date specifications.
1.3.1 Input Section
External Beacon Receiver Input;
DC input from an external Beacon receiver unit (Peak PTR50 or other), via a BNC
(f), 50Ohm connector on the rear panel. Various DC input ranges are available, as
follows;
Standard range ±10VDC
Option 1a 0-10VDC
Option 1b ±5VDC
Internal Beacon Receiver (Optional);
An internal Beacon Receiver is available which accepts an L-Band (SHF input options
are available) input signal via an N-Type (f), 50Ohm connection on the rear panel;
Beacon Receiver input frequency and performance;
The following Beacon input frequency ranges are available;
Option 2 L-Band (950-2150MHz) input
Issue 2.03 UPC7000 Series Automatic Up-Link Power Control Unit Page 12
Option 2a C-Band (3.4-4.2GHz, inverted spectrum) input
Option 2b X-Band (7.25-7.75GHz) input
Option 2c Ku-Band (10.7-11.7GHz) input
Option 2d DBS-Band input
Option 2e Ka-Band (20.2-21.3GHz) input
Return loss 15dB typical
Input Level;
Option 2 -70dBm nom
-60dBm max
-20dBm max aggregate power
Option 2a-2e -90dBm nom
-80dBm max
-40dBm max aggregate power
Note; an auxiliary ±10VDC output is provided to drive other equipment.
Slope Logarithmic, 0.5dB/V, 2dB/V, 5dB/V & 10dB/V (user
selectable from front panel menu)
Connector BNC (f)
Transfer Characteristics;
Synthesizer step size 1kHz
Search range ±20kHz, ±50kHz, ±100kHz, ±200kHz, ±500kHz, user
selectable
Tracking Parameters;
PLL noise (IF) BW 2kHz fixed
Threshold lock reacquisition 35dBHz
Average search time 3s (for bandwidth of 2kHz)
Beacon ‘display’; Graphical
Resolution Bandwidth 2kHz, 50kHz, 1MHz, user selectable from front panel
menu
External reference input;
An external reference input is available via a BNC (f), 50Ohm connect.
Frequency Factory selectable 5 or 10MHz
Level 0dBm, ±3dB
Phase noise To be better than 50dBc/Hz of output Phase Noise
Internal reference;
An internal back-up reference is provided that automatically takes over if the external
reference is either not provided, is disconnected or fails.
Frequency 10MHz
Adjustment ±1.0ppm, stepped 0.02ppm
Stability <5 x 10
-10
over 1s, <5 x 10-9 per 12 hrs
Ageing <5 x 10-7 per year
Temperature stability <5 x 10-8 over 0 to 400C
1.3.2 UPC Section
The compensation range is user selectable to allow the automatic variation to be
pre-set to +1, +2, +5, +10 or +30dB, the user can set custom ranges if necessary.
This minimises the likelihood of accidentally overdriving or saturating the high-power
amplifiers in the uplink equipment chain.
The attenuators have a high-resolution step size capability of 0.1dB. The
operational compensation step size is user selectable to 0.1, 0.5, 1 or 2dB.
Page 13 UPC7000 Series Automatic Up-Link Power Control Unit Issue 2.03
The compensation ratio is applied directly to the compensation calculation and
allows the user to make corrections for variations in uplink to downlink attenuation
levels. This is user selectable from 0.1 to 10dB and for every 1dB drop in Beacon
level, attenuation is reduced according to the above setting value. Setting resolution
is to 0.1dB.
Slew Rate; The Slew rate sets the maximum rate of change of the compensation
applied and allows the user to limit the rate of change. This facility can be enabled/
disabled and when enabled, set to the equivalent of between 0.01 & 0.1dB/s, user
selectable.
The Sample period sets the timeframe over which the measured Beacon Receiver
output is averaged before applying the new compensation to the attenuation
channels. This can be user settable from 0.2 to 10s.
Example; If the step size is set to 0.5dB, the compensation ratio set to 1.1, the slew
rate to 0.1dB/s and the sample period to 5s, the average Beacon power will be taken
over a period of 5 seconds, and then if a modified Beacon level is detected, the new
attenuation value will be calculated using the compensation ratio and applied to the
attenuators at a rate of a single 0.5dB step every 5 seconds.
1.3.3 Output Section
External Peak UpConverter, BUC or Line Amplifiers;
The unit can be provided without internal compensation channels (variable
attenuators), in this case the unit can be connected to any Peak P7000series
Synthesised/ Agile UpConverter or Peak IBUH series Block Up Converter (with
attenuator options fitted) or Peak ILAH series L-Band Line Amplifiers (with attenuator
option fitted).
This has the advantage of using attenuation already fitted in the uplink chain and
thus simplifies the system design. An attenuator adjustment range is ‘reserved’ for
the UPC function and the attenuators controlled via the Peak CANBUS® Data
connection. In this mode of operation, the optional by-pass switching is not required
and in the event of the loss of Beacon signal, a cable disconnection or a fault on the
UPC unit, the attenuator will remain at the previous setting.
Internal Adjustable Attenuators;
The unit can be provided with up to 4 separate internal channels of uplink
compensation. For additional channels, an ‘expansion’ unit is provided which
supports up to 10 channels and is ‘slaved’ to the main UPC unit.
UpLink Signal type; L-Band (950-2150MHz), SMA (f), 50Ohm
Option 3; IF 7018MHz/ 14036MHz, SMA (f), 50Ohm
1 dB GCP Input -10dBm, Output +15dBm
Input return loss >15dB
Output return loss >15dB
Attenuation control 0-30dB, stepped 0.1dB
Gain stability ±0.5dB from 0 to +40deg.C.
±0.1dB per week (constant temp)
Gain flatness ±1.0dB full band (±1.5dB 950 – 2150MHz option)
±0.5dB across any 36MHz in band
A fail safe, by-pass option is available for each internal channel of compensation,
this provides a switching arrangement where the unpowered (default) position routes
the UpLink signal through an external fixed attenuator ‘pad’ fitted on the rear of the
unit.
Issue 2.03 UPC7000 Series Automatic Up-Link Power Control Unit Page 14
The user would calculate, provide and fit the fixed attenuator ‘pads’ based on the
level of attenuation required in this fail-safe condition, taking into account any offset
attenuation entered on the internal attenuators and the likely ‘average’ conditions to
satisfy the link requirements, whilst not over driving the Satellite.
As power is applied to the unit, the compensation channels remain in the ‘off-line’
mode until the user selects either the ‘manual’ or ‘automatic’ mode, at which time the
internal switching activates and routes the UpLink signal through the internal
attenuation circuitry. This condition remains until a fault is detected on the unit, the
power is removed or the compensation channel condition is set back to the ‘off-line’
mode. In the case of a temporary loss of power or a fault condition that is rectified,
the previous condition is automatically resumed.
Please note that if the UPC unit is being used in combination with external Peak
converters (fitted with attenuators), bypass circuitry is not required and the external
attenuator will remain at the previous setting.
In the event of the Beacon signal being lost or disconnected, the compensation
settings will remain fixed at the point of loss and a warning flagged to the user.
Bypass connection SMA (f), 50Ohm (2 connections per channel)
Bypass Insertion Loss 1dB (plus external pad fixed attenuation value)
A DC & 10MHz pass-through option is available for internal L-Band compensation
channels. This facility if fitted allows the DC power supply and the 10MHz external
reference signal to be passed through the internal compensation circuitry to the
external system BUC, without effect in either the off-line (bypass) or on-line modes
of operation.
1.3.4 General
Reference frequency internal 10 MHz frequency trimmed by software
External reference input factory selectable 5 or 10MHz
Stability 1 second <5 x 10
-11
Ageing <7.5 x 10-8 per year
5 x 10
-10
per 12 hrs
Mechanical Standard 19inch rack mountable, 1RU stainless steel
chassis - 534mm deep, weight approx 8kg dependant
on options
Environmental Operating temperature range 0 to 500C
Compliance EMC to EN 55022, part B and EN 50082-1, safety to
EN 60950
Power supply 90 to 264VAC, 47-63Hz
Remote Control RS 232/ RS 485 port
Redundancy features In-built 1:1 CANBUS® system
1.4 Review of UPC7000 Specification parameters
Input Section
The Uplink Power Control unit can be provided with either an internal Beacon Receiver
or an external Beacon Receiver DC input.
Page 15 UPC7000 Series Automatic Up-Link Power Control Unit Issue 2.03
1.4.1 External Beacon Receiver
1.4.1.1 External Beacon Receiver Input
DC voltage is proportional to the received signal strength provided by an external
Beacon Receiver. As standard the voltage range is –10 to +10VDC, but other ranges
can be changed via an appropriate front panel menu option.
The user is required to input the slope (dB/V) for the external Beacon Receiver being
used.
1.4.2 Internal Beacon Receiver DownConverter section
1.4.2.1 DownConverter Input
950 MHz to 2150MHz full L-Band down conversion the selected frequency is passed
to the Tracking section with a bandwidth of 2.5MHz and to the Video section with
25MHz
1.4.2.2 DownConverter resolution
1 KHz Tracking frequency step size. On the LCD screen this is 0.001MHz if the LBand frequency is viewed or 0.000001GHz if the SHF LO addition feature is
switched on.
1.4.2.3 DownConverter Conversion Gain
Adjustable down conversion gain is available for best noise performance
0 to 20dB ± 2dB min stepped 0.1dB
The gain of the converter can be set to have no gain at 0dB or a gain of 20dB. The
finite gain set is specified to be within 2dB of the setting and the step size is 0.1dB.
The tolerance of the step size is not specified but should not exceed 0.05dB per
step.
1.4.2.4 Auxiliary DC output
22.5 volts regulated @ 0.5 Amp, software switchable
This facility is used for driving an external SHF block down converter or an LNB. This
voltage is integrated with the L-Band signal (and 10MHz). This voltage is out of a
regulator and will pull down to zero without damage however the internal fuse may
be damaged if this happens.
1.4.2.5 10MHz reference output
0dBm nominal, software switchable
This facility is used for stabilising the output frequency of an external L-Band to SHF
Block DownConverter. This signal is integrated with the L-Band output signal. An
outdoor BDC/LNB will drift in frequency due to ambient temperature changes
causing changes to the BDC locking crystal inside the unit. Inside Peak BDC’s the
facility is made to pick up the 10MHz locking signal sent by the UPC7000 and lock to
the internal crystal. With the BDC locked to the indoor unit the stability of the BDC
unit is as good as the internal UPC7000 crystal. With very long cables caution
should be taken not to attenuate the 10MHz (and DC) too much.
1.4.3 Internal Beacon Receiver Tracking Section
1.4.3.1 Tracking Output
DC voltage proportional to the received signal strength at the required dB/V and
offset using the DC offset menu to between –10V to +10V DC
1.4.3.2 Tracking Level
Issue 2.03 UPC7000 Series Automatic Up-Link Power Control Unit Page 16
Maximum Tracking signal level is –60dBm nominal is –70dBm minimum is the
determined by the noise level on the carrier though the unit will become nonlinear
below –110dBm
1.4.3.3 Sweep Range
5 user selectable sweep widths to allow for drifts on the required signal whilst
searching it is suggested to leave on the narrower settings as this will speed up
acquisition of lock. The settings available are 20kHz 50kHz 100kHz 200kHz
500kHz. It is suggested to use the narrowest setting if possible
1.4.3.4 Sweep Rate
Up to 8 user selectable sweep rates allow the user the choice to speed up the
acquisition of lock. The user must be aware that the lower the signal to noise ratio
the slower the sweep rate needs to be to guarantee lock detection. The settings
available are; 2.5KHz/s, 5KHz/s on standard units, on fast acquisition units the extra
sweep rates are; 10KHz/s, 20KHz/s, 40KHz/s, 80KHz/s, 120KHz/s, 240KHz/s. It is
suggested to use 5kHz/s as a starting point.
1.4.3.5 Post Detection Time Constant
This is the smoothing on the DC output and is factory set to the value of 150ms.
1.4.3.6 Log Output Scale
4 User selectable settings for the DC Logarithmic output voltage. The settings
available are 1dB/V, 2dB/V, 5dB/V & 10dB/V.
1.4.3.7 DC Output Adjustment
User adjustable offset of the Log output adjustable to 0V DC for input power levels
from –60dBm to –100dBm at 2dB/V.
1.4.3.8 PLL Noise Bandwidth
This is factory set to 2kHz.
1.4.3.9 Threshold for Reacquisition
The unit will lock with a threshold of 43dbc/Hz (unit must be on slowest sweep rate
setting for these figures).
1.4.3.10 ASB Sweep Rate
The ASB when enabled will analyse the tracking band searching for a higher signal
and if one is detected will enable the tracking lock circuit to release lock and search
for this higher signal. The sweep rate on the ASB is around 80Hz/s.
1.4.3.11 ASB Threshold
When the ASB is searching it is looking for a signal which is at least 3 dB higher
than the current locked signal level
1.4.4 Internal Beacon Receiver Video Section
1.4.4.1 Video Input
Selected Beacon frequency 25MHz (lower limit of 950MHz upper limit 2150MHz) is
available to display on the front panel. The minimum setting for span is set by the
resolution i.e. with wide res the display can be 160 pixels of (6kHz/2) = 480kHz and
with the narrow a minimum span of 80kHz is available.
1.4.4.2 Video Resolution
There are user selectable resolution band widths. ‘Wide’ has a bandwidth of 6kHz
and ‘narrow’ has a bandwidth of 1kHz. To enable displaying of wide bandwidth
signals there is no pixel averaging on the wide bandwidth setting however on the
Page 17 UPC7000 Series Automatic Up-Link Power Control Unit Issue 2.03
narrow setting the measurement is both average and also peak detected to allow
better signal/noise display.
1.4.4.3 Vertical Resolution
The display vertically axis is set to 5dB/division.
1.4.4.4 Video Section Attenuator
It is Possible to switch in a 10dB pad to allow measurements to be better made if the
unit has a high aggregate input level.
1.4.4.5 Reference frequency
Internal 10MHz frequency, software trimmed.
Uses a high grade OCXO at 10MHz
External reference input: Will accept either 5 or 10MHz.
Stability; <5 x 10
-10
/ second, ageing <5 x 10-7/ year, <5 x 10-9/ 24 hrs, <5 x 10-8 over 0
to +50deg.C.
1.4.5 UPC Section
1.4.5.1 Compensation Range
+2dB to +30dB, user selectable, with pre-set ranges +1dB, +2dB, +5dB, +10dB &
+30dB.
Sets the range of automatic adjustment
Typically, in tropical areas ‘rain fade’ is at its worst and can increase by up to 30dB,
so the higher ranges would be required, but in more benign areas lower ranges
would be more suitable. Many other factors have an effect, so the user should for
each link study, test and set the range to ensure that worst case conditions are met.
Statistics are readily available for regions throughout the world and will give the user
guidance for the most suitable settings to use.
1.4.5.2 Step Size.
0.1dB, 0.5dB, 1dB & 2dB, user selectable
Although the variable attenuator incorporated within the design has a high resolution
of 0.1dB, the resolution can be reduced by the user. This gives the attenuation
increments and generally the smaller the step size, the more often the compensation
will be automatically adjusted for changes in ‘rain fade’. With a larger step size the
compensation is courser and will generally not update as regularly for the same
change in conditions.
1.4.5.3 Compensation ratio.
0.1 to 10dB, user selectable.
For every 1dB drop in the Beacon level, the attenuation is reduced according to this
set value. In this way, a 1dB setting provides a ratio of 1:1 and corresponds to a
direct correlation between the DownLink (Beacon) and transmitted signal ‘rain fade’.
Generally, UpLink and DownLink ‘rain fade’ characteristics are similar, however
differences based mainly on propagation at the different frequencies, but also other
factors, have an effect. The user should for each link study, test and set the ratio to
best replicate the relationship between the Uplink and the Downlink characteristics. If
unknown at the time of commissioning, this can be easily modified afterwards when
more information is known about the likely link conditions.
Issue 2.03 UPC7000 Series Automatic Up-Link Power Control Unit Page 18
1.4.5.4 Slew Rate.
0.01 to 0.1dB/s, user selectable. This facility can be disabled.
Controls the maximum rate of change of the compensating attenuators
If the Beacon level suddenly dropped by 1dB and the slew rate is set to 0.1dB/s, it
would take 10 seconds to complete the automatic compensation adjustment
(assuming the compensation ratio to be 1:1 and the sampling period to be low
enough to allow this rate of change).
1.4.5.5 Sample Period.
0.2 to 10s, user selectable.
Sets the time period over which the Beacon output signal is averaged before the
compensation is calculated and applied to the attenuator settings. This does directly
affect the update rate and can, depending on the settings, override the slew rate
setting.
1.4.6 Output Section
1.4.6.1 Internal UpLink Channel Compensation Circuit Input.
Either L-Band 950 to 2150MHz or 70/140MHz based IF signal.
Fitted on the UPC7001, 2, 3, 4 UpLink Power controller units (with internal UpLink
compensation)
Connected in the UpLink equipment chain, typically to the Modem (Modulator) TX LBand or IF (70/140MHz) output or to the Agile Frequency Converter L-Band output.
1.4.6.2 Internal UpLink Channel Compensation Circuit Output.
Either L-Band 950 to 2150MHz or 70/140MHz based IF signal.
Fitted on the UPC7001, 2, 3, 4 UpLink Power controller units (with internal UpLink
compensation)
Connected in the UpLink equipment chain, typically to the agile frequency converter
70/140MHz input, the L-Band Block Converter input or the Power BUC (HPA) LBand input
1.4.6.3 Optional Internal UpLink Channel Compensation Circuit Bypass Connections.
Either L-Band 950 to 2150MHz or 70/140MHz based IF signal.
Optionally fitted on the UPC7001, 2, 3, 4 UpLink power controller units (with internal
UpLink compensation)
These connections (2off), if specified and ordered, allow the external connection of a
fixed attenuator (pad). The pad is automatically switched in to the RF circuit in place
of the internal attenuator in the event of a problem within the UPC unit, the removal
of the prime power supply to the UPC or by the user selecting the ‘off-line’ mode for
the channel in question. This provides a ‘fail safe’ condition, and if the pad value is
chosen correctly will avoid over driving the Satellite in the event of an equipment
problem.
1.4.6.4 1dB Gain Compression Point.
The 1dB compression point is a finite point in the power scale where a 1dB input
only gives 0.5dB increase in power. Note; the values specified are for total
composite power and are not single carrier.
Page 19 UPC7000 Series Automatic Up-Link Power Control Unit Issue 2.03
1.4.6.5 Insertion Loss and Attenuation.
Insertion Loss; 1dB (with minimum attenuation set)
Attenuation; 0-30dB, stepped 0.1dB
For units with internal compensation channels, each channel includes amplification
to overcome some of the loss associated with the internal RF circuitry. With
maximum attenuation set, the Loss of the unit is approximately 31dB or with
minimum attenuation 1dB. The attenuation set is specified to be within 2dB of the
setting and the step size is 0.1dB. The tolerance of the step size is not specified but
should not exceed 0.05dB per step.
1.4.6.6 Gain Flatness.
±1dB full band (±1.5dB for >800MHz Bandwidths), ±0.5dB, across any 36MHz in
band
The slope and variation of power across the L-Band should be within 2dB top to
bottom (3dB for L-Band bandwidths of greater than 800MHz, or >950-1750MHz), but
within 1dB across any 36MHz.
1.5 Mechanical description
The UPC7000 Series of converters are housed in a 19-inch 1U high chassis,
suitable for rack mounting. It is 534 mm deep and may be fitted with rack slides if
required. Figure 2 shows views of the front and rear panels of the UPC7000 series
Up-Link Power Controllers.
On the front of the unit is the keyboard, LCD display and LED indicators. The
operator is prompted by messages displayed on the LCD to enter data via the
keyboard. In this way the UPC7000 may be configured for use, and the set up
changed, if necessary. The LEDs provide a quick visual indication of the operational
status of the unit.
Rx Out Rx In
Remote
Alarms
Redundancy
115/230 Volts AC 50/60 Hz
100 Watts - 5.0A Fuse: T5AH
Ext Ref.
SERIAL NO:
Ethernet
Bypass
Out
In
1
Bypass
2
Bypass
Out
In
3
Bypass
Out
In
4
Out
In
Peak Communications Ltd.
MODEL NO:
Rear panel with integral beacon receiver option
Rear panel with external beacon receiver
Fig. 5 – front & rear panel views
TRACKING RECEIVER
PTR50
0
CANCEL
NO /
9
54
87
32
6
1
ENTER
YES /
STATUS
UPC7000
Issue 2.03 UPC7000 Series Automatic Up-Link Power Control Unit Page 20
1.6 Front panel description
Keyboard
The keyboard is of the membrane type and is an integral part of the front panel
assembly. The front panel overlay and is completely sealed against penetration of
liquids but caution should be taken especially with solvents which may damage the
front screen.
There are 16 keys in total; number keys in the range 0 to 9, YES/ENTER and
NO/CANCEL and a 4-way arrow block of keys
LCD display
The backlit display is a graphic display and characters are scaled to incorporate as
much information as possible on the screen. It provides detailed information about
the status and configuration of the unit, and when appropriate, prompts the user to
enter data via the keypad.
LED Indicator
Only one tricolour LED is present marked STATUS. This shows GREEN when the
unit is OK, RED when an internal fault is present and AMBER when in STANDBY
(Redundancy operation)
1.7 Rear panel description
All of the connectors necessary for the user to interface the UPC7000 series to
other equipment are located at the rear of the unit. Depending on the model the
connections may include the following;
External Beacon Receiver Input; labelled ‘External Beacon input’, always a BNC(f)
connector.
Alarms, Remote Control, Redundancy; all ‘D’ type connections
EC mains power connector/switch/fuse.
Units with internal Beacon receiver;
Beacon Receiver Output; labelled ‘RX Out’, always a BNC(f) connector.
Beacon Receiver Input; labelled ‘RX In’, always an N-Type(f) connector.
External Reference Input; labelled ‘Ext Ref’ and is always a BNC(f) connector.
The UPC7000 series of converters are designed to operate from an AC mains
supply, 90-264VAC, 47-63Hz. The Input connector incorporates a mains switch
and 2 input fuses. Access to the fuses is also provided under the removable cover.
ALWAYS REPLACE THE FUSE WITH ONE OF THE SAME TYPE AND RATING.
1.7.1 Chassis Earth stud
To provide the correct level of safety to the operator this must be connected to a
suitable safety earth provided in the rack installation. See the Safety and EMC
comments in section 1.
Page 21 UPC7000 Series Automatic Up-Link Power Control Unit Issue 2.03
1.7.2 Rx In
On units fitted with an internal Beacon receiver option, this is a 50Ohm, N-type (f)
connector.
For the L-Band Beacon Receiver, the input frequency should be in the range 950 to
2150MHz or for units fitted with the optional SHF input (internal LNB), the
frequency range will be as stated on the datasheet.
1.7.3 Rx Out/ External Beacon Input
On units fitted with an internal Beacon receiver option, this is a 50Ohm, BNC (f)
connector and it provides an auxiliary Beacon receiver DC output to drive other
external equipment. CAUTION; DC is present on this connector at all times within
the range of –10V to +10V.
On units without an internal Beacon receiver option, this connection is used as the
external Beacon receiver DC input and is a 50Ohm, BNC (f) connector.
1.7.4 Ext Ref.
On the UPC7000 series of converters this is the input for the 10MHz station clock
input. The internal reference is ‘locked’ to the external reference.
Connector type is 50Ohm BNC (f).
1.7.5 UpLink Channel Compensation ‘In’.
On the UPC7001, 2, 3, 4 UpLink Power controller units (with internal UpLink
compensation), these connections are used for the UpLink chain input and can be
either L-Band or IF (70/140MHz) depending upon the product options chosen at
time of ordering.
Connector type is 50Ohm SMA female.
1.7.6 UpLink Channel Compensation ‘Out’.
On the UPC7001, 2, 3, 4 UpLink Power controller units (with internal UpLink
compensation), these connections are used for the UpLink chain output and can be
either L-Band or IF (70/140MHz) depending upon the product options chosen at
time of ordering.
Connector type is 50Ohm SMA (f).
1.7.7 UpLink Channel Compensation ‘Bypass’.
On the UPC7001, 2, 3, 4 UpLink Power controller units (with internal UpLink
compensation), these connections (2off) allow the external connection of a fixed
attenuator (pad). The pad is automatically switched in to the RF circuit in place of
the internal attenuator in the event of a problem within the UPC unit, or the loss of
the Beacon signal. This provides a ‘fail safe’ condition and if the pad value is
chosen correctly will avoid over driving the Satellite in the event of an equipment
problem or the loss of the Beacon signal.
Connector type is 50Ohm SMA (f).
1.7.8 Alarms connector
This is a 15-pin male 'D' type connector, which provides access to the various form
'C' relay contacts which indicate alarm conditions.
1.7.9 RS232/RS485 Remote Control connector
This is a 15-pin female 'D' type connector. The UPC7000 provides both an RS232
port for remote control, and an RS485 port for 'multi-drop' applications.
Issue 2.03 UPC7000 Series Automatic Up-Link Power Control Unit Page 22
1.7.10 Redundancy
This is a 9-pin male 'D' type connector. The UPC7000 has a built-in 1+1
redundancy controller. A pair of UPC7000 units is required for correct operation
plus a P1000 series switching unit.
1.7.11 Ethernet connector
This is an IEEE802.3 standard connector and is fitted to the rear panel if the
Ethernet option is chosen at the time of order placement.
1.8 Fault philosophy
Fault conditions are divided into two categories;
a) MAIN UNIT COMMON FAULTS; Faults with internal items that on a
UPC7000 are common to all sections of the unit (Main power supply assembly
etc).
b) DEVICE SPECIFIC FAULTS; Faults that are specific to the Tracking section
or DownConverter or video assembly. These can include external fault inputs.
Most faults as shown below activate the summary ALARM; this will force a changeover if used in a normal redundant system.
The only fault that does not cause the unit to go into ALARM is the ‘External Mute’.
All faults shown below are reported on the front panel LCD and turn the tri-colour
fault LED to red.
Green – No faults
Amber – Unit in standby
Red – Fault condition
The MUTED column shows if the output is muted when the ALARM is active.
MAIN UNIT COMMON FAULTS:
Fault Name
MUTED
SUMMARY ALARM
5 VDC Power Supply
Yes
Yes
+15 VDC Power Supply
Yes
Yes
-15 VDC Power Supply
Yes
Yes
+36 VDC Power Supply
Yes
Yes
Over/Under Temperature
Yes
Yes
Over Humidity
Yes
Yes
General Fault
Yes
Yes
100MHz Fault
Yes
Yes
Redundancy Coax Switch
Yes
Yes
Page 23 UPC7000 Series Automatic Up-Link Power Control Unit Issue 2.03
DEVICE SPECIFIC FAULTS;
Fault Name
MUTED
SUMMARY ALARM
+3 VDC Power Supply
No
Yes
DC Feed Power Supply
No
Yes
+5 VDC Power Supply
No
Yes
1st LO Fault
Yes
Yes
2nd LO Fault
Yes
Yes
Internal Block Fault
No
Yes
External Fault
No
Yes
Internal SHF Fault
Yes
Yes
External Mute
Yes
No
Issue 2.03 UPC7000 Series Automatic Up-Link Power Control Unit Page 24
2. INSTALLATION
2.1 Care of Your Product
2.1.1 Handling
Single products, when fully packaged for transport can weigh in excess of 12kg’s.
When multiple Converters are to be delivered at the same time, to the same
customer, occasionally two Converters are packaged in the same outer carton, the
overall weight can then exceed 20kg’s. Care must be taken when attempting to lift or
carry these packages.
The shipping carton is qualified for transit of these products and has been used
successfully for many years. It will protect against shock and vibration encountered
during normal carrier transportation.
PLEASE RETAIN ALL PACKING MATERIALS, including the foam insets. Should the
unit need to be returned, return to the address on the front of the manual USING THE
ORIGINAL PACKING CARTON, unless it has been seriously damaged.
Avoid subjecting the packaged or unpackaged product to severe shocks.
2.1.2 Unpacking and Inspection
When the product is first received, the outer pack should be inspected for signs of
damage. If damage to the outer pack is evident, contact the Carrier immediately and
submit a damage report. The equipment should then be removed and inspected for
signs of damage, retaining all packing materials. Any visible signs of damage to the
equipment should be reported immediately to Peak Communications (electronic
photographs of the pack and equipment can help with any subsequent insurance
claims). If the equipment appears undamaged, it should be tested for correct
operation and again any abnormalities reported to Peak Communications.
When first removing the product from its transit pack, take care to retain all
documentation and associated hardware. These products are typically provided with
the following items;
UPC7000 series product.
Operation manual.
Test results.
Mains lead (suitable for use in country of operation).
Spares kit.
If you suspect that any item is missing, please contact Peak Communications
immediately.
2.1.3 Storage
Store the product in the normal horizontal orientation, in its outer carton until it is
required for use. Do not use the products to support the weight of other items whilst in
storage.
Storage temperature range is typically from -40°C to +80°C, avoid exceeding these
extremes otherwise damage may result.
Avoid exposing the packaged or unpackaged product to extremes of humidity or
moisture (including condensation). In the event that this does occur, the product
Page 25 UPC7000 Series Automatic Up-Link Power Control Unit Issue 2.03
should be left at room temperature for in excess of 5 hours to dry naturally before
application of prime power.
2.1.4 Cleaning & Maintenance
The product is designed to be installed and operated in a clean air environment. Apart
from occasional cleaning of the front panel, no regular cleaning &/or maintenance is
necessary.
Always ensure that the product is off-air and that the mains supply is isolated before
attempting to clean the front panel. Cleaning of the front panel can be accomplished
with a damp cloth. Do not use excessive amounts of water & do not use detergents or
other cleaning agents without first consulting Peak Communications.
2.2 Mechanical Installation Considerations
2.2.1 Mounting
This product has been designed to mount in a standard IEC 19-inch racking system,
but can also be used free standing or mounted in a standard IEC flight case.
The product is of standard 1U height (1.75 inch) and depth of 534mm (21 inches).
Standard connector mating parts with cable bend radii, plus space to uncouple
connectors, can add a further 80mm (3.15Inches) to this depth & should be
considered when designing the installation.
The product is provided with standard 19-inch rack front panel fixing points, however
these should not be solely relied upon to support the entire weight of the unit. Four
(two on each side) additional M3 mounting points are provided along the sides of the
unit, these can be used to support the unit from rack slide rails or other side support
mechanisms, alternatively shelving brackets can be used to provide rest support for
the units.
Cooling slots are provided on the sides of the unit, care should be taken to avoid
blocking these when designing the installation (see Cooling section below).
When several products are to be mounted on top of one another in a rack system,
they should not be stacked without individual support. Stacking of units without
adequate mechanical support and isolation can degrade microphonic performance of
the overall system and hamper maintenance activities.
2.2.2 Cooling
These products dissipate <100W internally and contain an internal forced air cooling
system. Air intake and exhaust apertures are provided on the side panels of the
chassis, care should be taken to avoid blocking these when designing the installation
Although these products have been designed to operate with a full rack packing
density in an ambient of 50°C, for operational reasons it may be necessary to allow
extra space if the unit is sandwiched between two longer chassis, or if the rack
ambient increases above 50 degrees C. This will be necessary if adjacent equipment
Issue 2.03 UPC7000 Series Automatic Up-Link Power Control Unit Page 26
transfer significant heat to the Converter surfaces, through either conduction or
convection.
A thermal sensor is fitted to the unit which provides an over temperature alarm
2.3 Prime Power Supply & Connection
The safety notes provided in the product compliance section of this handbook should
be read before connecting this product to the mains supply.
This product can be operated from mains supplies of 100-132Va.c. or 200-230V AC
(50/60Hz), the appropriate voltage range is automatically selected by the unit and
requires no user intervention. The IEC standard mains inlet on the rear of the unit
includes a double pole switch.
The typical power requirement of these units is <100W.
The equipment is classified in EN 60950 as ‘pluggable equipment, class A’ for
connection to the mains supply, as such it is provided with a mains inlet cord suitable
for use in the country of operation. In normal circumstances this will be of an
adequate length for installation in the rack. If the mains cord proves to be too short,
then any replacement must have a similar fuse type (if fitted) and be manufactured to
similar specifications: check for HAR, BASEC or HOXXX-X ratings on the cable. The
connector ends should be marked with one of the following: BS1636A (UK free plug
13 amp); BSI, VDE, NF-USE, UL, CSA, OVE, CEBEC, NEMKO, DEMKO, SETI, IMQ,
SEV and KEMA-KEUR for the IEC 6 Amp free socket. Schuko and north American
free plugs must have similar markings.
The installation of the equipment and the connection to the mains supply must be
made in compliance to local or national wiring regulations for a category II impulse
over voltage installation. The positioning of the equipment must be such that the
mains supply socket outlet for the equipment should be near the equipment and
easily accessible or that there should be another suitable means of disconnection
from the mains supply.
2.3.1 Fuses
The equipment is provided with short circuit fuse protection of both the Live and
Neutral conductors, both fuses must be functional before the unit will operate.
The fuses are accessible from the rear of the unit and are fitted into the IEC mains
inlet. To check or replace a fuse, switch off and isolate the mains supply before
removing the fuse cover. If a replacement fuse is required, then an equivalent type
and rating must be used. The fuse size is 5 x 20 mm, rated at 5A anti-surge (T5A).
Page 27 UPC7000 Series Automatic Up-Link Power Control Unit Issue 2.03
2.3.2 Earthing
The equipment is designed to operate from a TN type power supply system as
specified in EN 60950. This is a system that has separate earth, line and neutral
conductors. The equipment is not designed to operate with an IT power system which
has no direct connection to earth.
An external protective earth, providing protection against RF and transient currents,
should be connected between the rear panel earth stud (adjacent to the prime power
inlet point and fitted with an M4 nut) and a local system earth point.
2.4 Other Interface Connections
2.4.1 Internal Beacon Receiver L-band Connection
For units fitted with an internal L-Band Beacon Receiver option, this connection is
provided on the rear panel and has the following characteristics;
Converter Type
Connection
Type
Panel Label
Impedance
Internal Beacon
Receiver only.
N-type (F)
Rx In
50Ω
The use of high quality cables and connectors for L-band signals is strongly
recommended. Cables and connectors should be rated for operation up to 2200MHz.
Care should be taken when handling these cables, avoiding stress to connections,
tight bend radii and damage from sharp objects, all of which can degrade system
performance.
These connections can also be used to interface the 10 MHz reference signal (at a
nominal 0dBm level) and the DC power (22.5V @ 0.5A) to the external Block
DownConverter.
2.4.2 Internal Beacon Receiver SHF Connection
For units fitted with an internal Beacon Receiver with SHF input option, this
connection is provided on the rear panel and has the following characteristics;
Converter Type
Connection
Type
Panel Label
Impedance
Internal Beacon
Receiver only.
N-type (F)
Rx In
50Ω
The use of high quality cables and connectors for SHF signals is strongly
recommended. Cables and connectors should be rated for the frequency of operation.
Care should be taken when handling these cables, avoiding stress to connections,
tight bend radii and damage from sharp objects, all of which can degrade system
performance.
2.4.3 Internal Beacon Receiver Auxiliary Output Connection
For units fitted with an internal Beacon Receiver, this connection is provided on the
rear panel and has the following characteristics;
Issue 2.03 UPC7000 Series Automatic Up-Link Power Control Unit Page 28
Converter Type
Connection
Type
Panel
Label
Impedance
Notes.
Internal Beacon
Receiver only.
BNC (F)
Rx Out
0Ω
5mA max
2.4.4 External Beacon Receiver DC Input Connection
For units without an internal Beacon receiver, this connection is provided on the rear
panel and has the following characteristics;
Converter Type
Connection
Type
Panel
Label
Impedance
Notes.
External Beacon
Receiver only.
BNC (F)
External
Beacon
Input
1MΩ
DC.
2.4.5 External Reference Input Connection
For units with an internal Beacon receiver, this connection is provided on the rear
panel and has the following characteristics;
Converter Type
Connection
Type
Panel
Label
Impedance
Notes.
Internal Beacon
Receiver only.
BNC (F)
Ext Ref.
50Ω
Accepts 5 or 10MHz.
2.4.6 UpLink Channel Compensation Connections – In, Out, Bypass
For units with internal UpLink compensation channels, these connections are
provided on the rear panel and have the following characteristics;
Converter Type
Connection
Type
Panel
Label
Impedance
Notes.
UPC7001, 2, 3, 4
SMA (F)
In
50Ω
UpLink chain input.
UPC7001, 2, 3, 4
SMA (F)
Out
50Ω
UpLink chain output.
UPC7001, 2, 3, 4
2x SMA (F)
Bypass
50Ω
External ‘Bypass’ Pad.
2.4.7 Alarms Interface Connection
This is provided on the rear panel and is a standard ‘D’ type 15-pin (M). The
connections provide access to the various form 'C' relay contacts which indicate alarm
conditions.
If an external Beacon receiver is used, an appropriate fault output alarm can be
connected to the ‘Ext. Beacon Lock Input’ connection of the UPC ‘Alarms Interface’
connector pin 10. This signal when connected to ground will be used to trigger the
attenuator settings to be maintained at the previous level and ignore any Beacon
Receiver signal changes until the alarm pin is open circuit.
A pin configuration is given below;
Page 29 UPC7000 Series Automatic Up-Link Power Control Unit Issue 2.03
Note: N/O indicates 'normally open' in the non-fail state, with STATUS LED Green.
Unit fault (1) is used for the external or internal beacon receiver.
Unit fault (2) is used for the UPC faults and EXP faults
If there is an overall unit fault then both relays are triggered.
** If option 15SN is fitted then the Summary Alarm pin is available, otherwise it is not.
When available this pin is a dry relay contact, which is connected to GROUND when
the unit is OK, or open contact when not, i.e. N/C.
2.4.8 Remote Serial Communications Interface (RS-232/RS-485)
This is provided on the rear panel and is a standard 'D' type 15-pin (F). The units
provide both an RS232 port for simple two-way remote control, and an RS485 port for
asynchronous, 'multi-drop' remote control applications.
A pin configuration is given below;
When using this product with the serial communications interface, a 120Ω bus
termination should be fitted externally between the Rx + (pin 1) and Rx – (pin 9)
connections of the 15-way ‘remote’ connector. If used in conjunction with other
equipment on a multi-drop system, the bus termination is only required on one unit,
typically the furthest from the master device.
Unit fault (1) COM
1
Unit fault (1) N/C
2
Ext. Mute (1)
3
Unit fault (2) COM
4
Unit fault (2) N/C
5
Not used
6
Not used
7
** Summary Alarm
8
9
Unit fault (1) N/O
10
Ext. Beacon Lock
Input.
11
Ext. Alarm (1)
12
Unit fault (2) N/O
13
Not used
14
Not used
15
GROUND
RS485 Rx +
1
RS485 Tx +
2
Not used
3
Not used
4
Not used
5
Not used
6
RS232 Rx In
7
Not used
8
9
RS485 Rx -
10
RS485 Tx -
11
Not used
12
Not used
13
Not used
14
GROUND
15
RS232 Tx Out
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