Gilat Satellite Networks AN7035 User manual

Medium Power BUC
User Manual
April 2012
Revision 0.1
Document Number: DC-002886(A)

Notice
This document contains information proprietary to Gilat Satellite Networks Ltd. and its affiliates and may not be
reproduced in whole or in part without the express written consent of Gilat Satellite Networks Ltd. The disclosure by Gilat
Satellite Networks Ltd. of information contained herein does not constitute any license or authorization to use or disclose
the information, ideas or concepts presented. The contents of this document are subject to change without prior notice.

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Contents
Chapter 1: Manual Overview ........................................................................................................ 3
Chapter 2: BUC 25W Introduction ............................................................................................... 5
BUC 25W ....................................................................................................................... 5
Features and Benefits .................................................................................................... 5
Available Models and Configurations.............................................................................. 6
Technical Data and Specifications.................................................................................. 7
BUC Physical Description............................................................................................... 9
BUC 25W DC.............................................................................................................................9
BUC 25W AC...........................................................................................................................10
Chapter 3: Managing the System............................................................................................... 11
Handling....................................................................................................................... 11
Transportation..........................................................................................................................11
Storage.....................................................................................................................................11
Return of Equipment................................................................................................................12
Equipment Damage or Loss ....................................................................................................12
Receiving and Inspection.........................................................................................................12
Unpacking.................................................................................................................... 13
Unpacking Instructions.............................................................................................................13
BUC Packing List.....................................................................................................................14
Installation and Operation............................................................................................. 16
BUC 25W DC Mechanical Installation .....................................................................................16
BUC 25W AC Mechanical Installation .....................................................................................16
BUC 25W DC to External DC Source......................................................................................18
BUC 25W AC Indoor/Outdoor PS Cable Connections ............................................................19
Operation and Post Installation Checks...................................................................................19
Chapter 4: Maintenance ............................................................................................................. 21
Preventive Maintenance Activities................................................................................ 21
Corrective Maintenance................................................................................................ 21
Fan Replacement.....................................................................................................................21
Removing the Fan....................................................................................................................21
25W DC & AC Models Fan Removal.......................................................................................23
Troubleshooting............................................................................................................ 24

Appendix A: DC Cable Assembly Instructions ......................................................................... 25
Appendix B: AC Cable Assembly Instructions ......................................................................... 27
Appendix C: Part List.................................................................................................................. 29
Appendix D: LED INDICATION ................................................................................................... 31
Appendix E: Acronyms and Abbreviations............................................................................... 33
Appendix F: Appendix - Safety Instructions ............................................................................. 35
General Safety Guidelines............................................................................................35
Safety Notes Conventions ............................................................................................35
Index 39

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Chapter 1: Manual Overview
This manual describes the operational procedures and activities for the BUC 25W
system.

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Chapter 2: BUC 25W Introduction
In This Section
BUC 25W .........................................................................................................................................5
Features and Benefits......................................................................................................................5
Available Models and Configurations...............................................................................................5
Technical Data and Specifications...................................................................................................6
BUC Physical Description................................................................................................................9
BUC 25W
Figure 1: BUC General View
Features and Benefits
The following features are included and define the BUC 25W:
An outdoor sealed unit
Operating temperature: -40C to +55C
Easy for installation and operation
Reliable
Designed for use in either VSAT or SCPC applications
Can be mounted on top of or beneath the Antenna boom
BUC-to-OMT Flexible Waveguide is available upon request
Powering the BUC (following are available options)
AC 100 –230 VAC
DC 38 –62V

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Available Models and Configurations
Table 1: Models and Configuration
Model
Output Power
PSAT
Input Freq.
(MHz)
Output Freq.
(GHz)
L.O. Freq.
(MHz)
Input Voltage
Power Feed
M&C
Power
Consumption
(W)
Weight
(Kg)
AN7035
25
950 - 1525
5.85 - 6.425
4900
AC: 100-230V
AC via external
connector
For Redundancy
Solution
190W
12
AN7036
25
950 - 1525
5.85 - 6.425
4900
DC: 48V
DC via external
connector
For Redundancy
Solution
170W
7.2
AN7054
25
1075 - 1435
6.365 - 6.725
5290
AC: 100-230V
AC via external
connector
For Redundancy
Solution
190W
12
AN7055
25
1075 - 1435
6.365 - 6.725
5290
DC: 48V
DC via external
connector
For Redundancy
Solution
170W
7.2
A1193
25
975 - 1275
6.725 - 7.025
5750
AC: 100-230V
DC via external
connector
For Redundancy
Solution
190W
12
A1192
25
975 - 1275
6.725 - 7.025
5750
DC: 48V
DC via external
connector
For Redundancy
Solution
170W
7.2

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Technical Data and Specifications
The following are the electrical specifications of the BUC.
Table 2: Power and Gain
Parameter
Description
Output Power @ P1db Comp. (Min)
43dBm
Output Power @ Saturation
44dBm
Nominal Gain
63dBm
Gain Variations over full band
±2dB
Gain variations over 36MHz
1.5dBm PTP
Gain Variation over Temp (-40 to +55°C)
4dB
Max IF input level with no damage
15dBm
Table 3: Phase Noise
Parameter
Description
- 100Hz
-60 dBc/Hz
- 1KHz
-70 dBc/Hz
- 10KHz
-80 dBc/Hz
- 100KHz
-90 dBc/Hz
- 1MHz
-100 dBc/Hz
Reference signal frequency Ex. to BUC
10 MHz
Reference signal level
-3 to +10 dBm
Table 4: External Reference Phase Noise
Parameter
Description
- 10Hz
-105 dBc/Hz
- 100Hz
-134 dBc/Hz
- 1KHz
-144 dBc/Hz
- 10KHz
-154 dBc/Hz
Max Reference Level with no damage
15dBm

Technical Data and Specifications BUC 25W Introduction
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Table 5: Noise, Harmonics and Spurs
Parameter
Description
IMD distortion at 6dB Back off
-27 dBc
Spurious @ P1 dB
-20 dBm
Harmonics @P1dB - 3dB
-50 dBc
Transmit Noise
-81 dBm/Hz max
Receive band noise
-163 dBm/Hz max
Noise Figure @ max Gain
15 dB
Table 6: 25W DC Mechanical Specifications
Parameter
Description
Dimensions (W x L x H)
212 x 268 x 110 mm
Weight (Kg)
7.2 kg
Finish
White polyurethane paint
Table 7: 25W AC Mechanical Specifications
Parameter
Description
Dimensions (W x L x H)
228 x 268 x 238 mm
Weight (Kg)
12 kg
Finish
White polyurethane paint
Table 8: Ambient Environmental Conditions
Parameter
Description
Operating Temperature
-40 to +55°C
Storage Temperature
-55 to +85°C
Storage Temperature
Forced air
Relative Humidity
100%
Altitude
3048 m max
Table 9: Interface
Parameter
Description
RF Output Connector
CPR-137G
Output VSWR
2.5:1
RF Input Connector
N Type
Input Impedance
50Ω
Input VSWR
2.0:1
Power Supply Connector
3-pin type –plug
DC: DL3102A10SL-3P
(Amphenol)
AC: B-4222-14-04 (Binder)
M&C Connector (Standard)
15-pin MS type - Socket (P/N
62IN-12E-14-15PW-624)

BUC Physical Description
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Table 10: Unit Indicators Status
Parameter
Description
L1
See LED Indication (on page 31)
L2
See LED Indication (on page 31)
Over Temp Shutdown
+80C
BUC Physical Description
There are two different units, for DC and AC BUCs.
BUC 25W DC
The following items are available on the BUC outer surface:
1. Fan - Regulates the BUC inner space temperature.
2. IF Input Connector - The modem-to-BUC cable connection.
3. CPR137 - The BUC RF output.
4. M&C Connector (optional).
5. L2 - The BUC three-state status indicator (illuminating - green, extinguished or
blinking).
6. L1 - The BUC three-state indicator (illuminating - green, extinguished or
blinking).
7. External Power Supply Connector - The input power connector when the BUC
is powered directly from a DC source (usually +/- 48V DC).
Figure 2: BUC Physical Description - BUC 25W DC

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BUC 25W AC
The following items are available on the BUC outer surface:
1. External Power Supply Connector - The input power connector when the BUC
is AC powered.
2. AC Indicator - An orange light, indicates AC power to the BUC.
3. CPR137 RF Output - The BUC RF output.
4. M&C Connector.
5. L2 Indicator - The BUC three-state status indicator (illuminating - green,
extinguished or blinking).
6. LH Indicator - The BUC three-state indicator (illuminating - green, extinguished
or blinking).
7. IF Input Connector - The Modem-to-BUC cable connection.
Figure 3: BUC Physical Description - BUC 25W AC

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Chapter 3: Managing the System
In This Section
Handling.........................................................................................................................................11
Unpacking ......................................................................................................................................13
Installation and Operation..............................................................................................................16
Handling
The following section describes how to handle the BUC.
Transportation
The BUC 25W can be transported by land, air or sea. It must be packed in its original
packaging for any type of transportation.
Figure 4: The BUC Packages
Storage
Packed in its original packaging, the following conditions must be complied when
storing the BUC 25W:
Temperature Range: 0 to 50C
Relative Humidity: up to 95% (non-condensing)

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Return of Equipment
Do not return any equipment without its RMA number. This is important for
prompt, efficient handling of the returned equipment and of the associated
complaint.
When returning equipment to Gilat Satellites for repair or replacement:
1. Identify, in writing, the condition of the equipment.
2. Refer to the sales order, Purchase Order and the date the equipment was
received.
3. Notify Gilat Sales Administration Department of the equipment condition and
obtain a Return Material Authorization (RMA) number and shipping instructions.
Consult manufacture Service department for the best shipment method.
Equipment Damage or Loss
Gilat is not responsible for damage or loss of equipment during transit. For farther
information, contact the responsible transport carrier.
When declaring equipment as damaged during transit preserve the original shipping
cartons to facilitate inspection reporting.
Gilat is responsible for damage or loss of equipment only if the purchase order
included a "door-to-door" delivery (CIF by Incoterm). Otherwise, contact the
responsible transport carrier. In case of damage or loss of equipment, contact Gilat
immediately for farther information.
Nevertheless, in any case of damage or loss of equipment, it is recommended to
contact Gilat which will make an effort to assist.
Receiving and Inspection
Handle the transmitter module with extreme care. Excessive shock may damage
the transmitter module delicate internal components.
The transmitter module is designed to function outdoors and arrives in standard
shipping containers. Immediately upon receiving the transmitter module, check the
Bill of Lading against the actual equipment you have received. Inspect the shipping
containers exteriors for visible damage incurred during shipping.

Unpacking
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Unpacking
Before unpacking the shipping containers, move them near
to the site where the system is to be mounted. Ensure that
the containers are oriented correctly in accordance with the
"This Side UP'' labels. Carefully remove the transmitter
module and packing material from the shipping containers.
Unpacking Instructions
To unpack the BUC:
1. Visually inspect the packages for traces of excessive moisture or external
damage.
2. Carefully open the BUC 25W package, observing all handling labels (This Side
Up, Open This End, Fragile, etc.).
Figure 5: The 25W Open Packages View
3. Using the supplied packing list, verify that all items have been received and are
undamaged during shipment. Verify that all items are complete. If there are any
omissions or evidence of improper packaging, please notify Gilat immediately.
Do not peel the sealing of the waveguide port. It is there for sealing the unit.

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BUC Packing List
Verify that the following items are found in the package (due to customer
requirements, there might be changes in the list. In case of differences between this
list and the actual part-list, the part-list stands):
Table 11: BUC Packing List for BUC 25W DC Models
Part
P/N
Quantity
Notes
BUC 25 W
AN7036/
AN7055/
A1192
1
Bracket - BUC holder
2
Ins screw HEX screw
1/4-20 l=5 inch
4
Hex Nut, ¼"-20 with
lock
4
Flat Washer ¼ x 16 x 1
8
Adapter N Type to F
type
1
NF10-32x5/16 ST.ST
1
Ground screw
Slotted washer NF
10-32
2
On ground screw
BUC WG Assembly Kit –
A10559
1
See BUC Assembly Kit table
below
Flex WG Assembly Kit –
A11497
1
See Flex Assembly Kit table
below
DC Connector - Plug 3
Pin Female 13A Sealed
fmlb
1
Only connector without cable
Manual - TBD
1
* DC Power Cable 25m
for BUC C
LN000568
1
Optional- with connector
assembly
* Flex WG 0.96m
LN000587
1
Optional
* Flex WG 1.52m
LN000588
1
Optional
Table 12: BUC Packing List for BUC 25W AC Models
Part
P/N
Quantity
Notes
BUC 25W
AN7035/
AN7054/
A1193
1
FLANGE
4
Hex Nut, ¼"-20 with
lock
8
Flat Washer ¼ x 16 x 1
12
Shaft 1/4-20x200 mm
4
Spacer
4
Screw SCR SOC CAP
1/4-20X30mm
4

Unpacking
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Part
P/N
Quantity
Notes
Adapter N Type to F
Type
1
NF10-32x5/16 ST.ST
1
Ground screw
Slotted washer NF
10-32
2
On ground screw
BUC WG Assembly Kit -
A10559
1
See BUC Assembly Kit table
below
Flex WG Assembly Kit –
A11497
1
See Flex Assembly Kit table
below
AC Connector - Plug
female 3P+PE OD
10-12mm
1
Only connector without cable
Manual - TBD
1
* AC Power Cable 15m
for BUC C
LN000569
1
Optional- with connector
assembly
* Flex WG 0.96m
LN000587
1
Optional
* Flex WG 1.52m
LN000588
1
Optional
Table 13: A10559 BUC Waveguide Assembly Kit
Part
Quantity
Screw Set for Packing Kit
9
Allen Key 5-32
1
o Ring Silicon 70/V2/V0
1
Table 14: A11479 Flex Waveguide Assembly Kit
Part
Quantity
Screw NF10-32x1.25"SOC CAP ST.ST
9
NUT, NF 10-32 STAINLESS STEEL
9
WASHER, NO 10 ST.ST. 18-8
18
Allen KEY 5-32
1
ORING FLANGE SILICON 70/UL/VO
1
gasket wr -137 half thick
1
* Optional, not included in the standard kit.

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Installation and Operation
The equipment must be properly grounded according to the NEC and other
local safety code requirements. Failure to comply could result in personnel
injury or loss of life.
BUC 25W DC Mechanical Installation
To install the BUC 25W, fasten the BUC to the beam, using four washers (3) and hex
nuts (4) attached to both Mounting Clamps.
Figure 6: Installing the BUC 25W DC
BUC 25W AC Mechanical Installation
To install the BUC 25W AC:
1. Place four screws (7), fasten to the spacers (6) and to the shafts (5).
2. Mount the two lower flanges (2) and fasten using four nuts (4) and eight washers
(3).
3. Fasten the BUC to the beam using the two upper flanges (2), four nuts (4) and
eight washers (3).

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Figure 7: Installing the BUC 25W AC

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BUC 25W DC to External DC Source
To connect the BUC 25W DC to an external DC source:
1. Connect the ground cable to the ground terminal on the BUC.
2. Connect all other cables as described in the following diagram.
3. Once connected, wrap the sealing tape supplied with the DC cable kit, around the
DC mating connector.