BAE Systems V1FCGX-LF First InterComm VCA100 model V1FCGX-LF User Manual Installation guide
BAE Systems First InterComm VCA100 model V1FCGX-LF Installation guide
Contents
- 1. Installation guide
- 2. User guide
Installation guide

 PRELIMINARY A29799 RML 
 November 2007 
PRELIMINARY 
 First InterComm™ System 
Installation Guide 
www.Firstintercomm.com 
 PRELIMINARY A29799 RML 
 November 2007 
PRELIMINARY 
© 2007,  BAE Systems Information and Electronic Systems Integration Inc..  All rights 
reserved 

First InterComm
™
 System Installation Guide 
A29799  Page i 
November 2007  
Table of Contents 
List of Illustrations....................................................................................................... iii 
List of Tables................................................................................................................ iii 
Document Change History .......................................................................................... iii 
Warnings and Precautions.......................................................................................... iv 
1.0 Introduction......................................................................................................... 1 
2.0 First InterComm System™ Description............................................................. 1 
2.1 Vehicle Communications Assembly, Model VCA100.................................... 3 
2.2 VCA100 Power Connector ........................................................................... 4 
2.3 WiFi Antenna................................................................................................ 4 
2.4 Land Mobile Radio Antenna ......................................................................... 4 
3.0 Planning the Installation.................................................................................... 5 
3.1 Installation Kit Components.......................................................................... 5 
3.2 Tools and Test Equipment............................................................................ 6 
3.3 System Component Locations...................................................................... 7 
3.3.1 VCA100.......................................................................................... 7 
3.3.2 WiFi Antenna.................................................................................. 7 
3.3.3 Land Mobile Radio Antenna ........................................................... 8 
3.3.4 Power and Fuse ............................................................................. 8 
3.3.5 Manual Switch................................................................................ 8 
4.0 Installation Procedures...................................................................................... 9 
4.1 VCA100 Unit................................................................................................. 9 
4.2 WiFi Antenna................................................................................................ 9 
4.3 Land Mobile Radio Antenna ....................................................................... 10 
4.4 DC Power ................................................................................................... 10 
4.5 VCA100 On/Off Switch............................................................................... 11 
4.6 Fuse Assembly........................................................................................... 11 
5.0 Initial Power Test.............................................................................................. 12 
6.0 Update User Specific Parameters ................................................................... 13 
6.1 Preparation................................................................................................. 13 
6.2 VCA100 Update Procedure ........................................................................ 14 
7.0 Unit Test Plan.................................................................................................... 15 
7.1 LMR Antenna VSWR Test.......................................................................... 15 
7.2 System Functional Test.............................................................................. 15 
8.0 Troubleshooting ............................................................................................... 16 
9.0 BAE Support Information................................................................................. 16 
10.0 Companion Documentation............................................................................. 16 
Appendix A - Recommended LMR Antennas............................................................ 17 

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 System Installation Guide 
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Table of Contents (Cont.) 
Appendix - B VCA100 Software Programs and Utilities........................................... 18 
B.1 BAE Systems VCA Management Program................................................. 18 
B.2 Serial IP Program ....................................................................................... 19 
Appendix C - Acronyms and Abbreviations.............................................................. 21 
Appendix D - Troubleshooting Procedures .............................................................. 23 
Appendix E - Installation Sign Off Sheet................................................................... 24 

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List of Illustrations 
1  Typical VCA100 Vehicle Installation ..................................................................... 2 
2 First InterComm VCA100 Unit .............................................................................. 3 
3  VCA100 Power Harness Connector – Front View ................................................ 4 
4 Standard Comtelco WiFi Antenna ........................................................................ 4 
5 In-Line Fuse.......................................................................................................... 8 
6 Mounting Bracket.................................................................................................. 9 
B-1 FirstInterComm™ VCA Management Window .................................................... 18 
B-2  Serial IP Control Panel and Select Port Windows .............................................. 19 
B-3  Serial IP Program Configuration Wizard............................................................. 20 
 List of Tables 
1 First InterComm VCA100 Models......................................................................... 3 
2  VCA 100 Vehicle Installation Kit ........................................................................... 5 
3 Installer Supplied Parts......................................................................................... 5 
4  Required Test Equipment and Software............................................................... 6 
5  Recommended Tools for First InterComm Installation.......................................... 6 
6 Initial Power Tests .............................................................................................. 12 
7 Required User Information ................................................................................. 13 
8 VCA100 Update Procedure ................................................................................ 14 
9  LMR Antenna VSWR Test Results..................................................................... 15 
10 System Functional Test Results ......................................................................... 15 
A-1 Recommended LMR Antennas........................................................................... 17 
A-2  LMR Antenna Specifications............................................................................... 17 
 Document Change History 
DOCUMENT NO.: A29799 
TITLE: First InterComm™ System Installation Guide 
DATE  REV.  PAGES AFFECTED  REMARKS 
Nov 2007  ---  ---  Initial Publication 

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Warnings and Precautions 
 Federal Communications Commission (FCC) 
Compliance - This equipment has been tested and found to comply with the limits for a Class B digital 
device, pursuant to Part 15 of the FCC Rules.  These limits are designed to provide reasonable protection 
against harmful interference in a residential environment.  This equipment generates, uses, and can 
radiate radio frequency energy and, if not installed and used in accordance with the instructions, may 
cause harmful interference to radio communications.  Further, proper installation does not guarantee that 
interference will not occur in a particular situation.  If this equipment does cause harmful interference to 
radio or television reception, which can be determined by turning the equipment off and on, the user is 
encouraged to try to correct the interference by one or more of the following measures: 
•  Reorient or relocate the receiving antenna. 
•  Increase the separation between the equipment and affected receiver. 
•  Connect equipment into an outlet on a circuit different from that to which the receiver is connected. 
•  Consult an experienced radio/TV technician for help. 
Radio Frequency Notice – The First InterComm™ System generates and uses RF energy.  Changes or 
modifications to the equipment may cause harmful interference unless the modifications are expressly 
approved in the installation or maintenance manuals.  The authority to operate the equipment could be 
lost, if an unauthorized change or modification is made. 
 Electromagnetic Interference/Compatibility 
Nearly every electronic device is susceptible to electromagnetic interference (EMI) if inadequately 
desogmed. shielded, or otherwise configured for electromagnetic compatibility.  It may be necessary to 
conduct compatibility testing to determine if any electronic equipment used in or around vehicles is 
sensitive to external RF energy or if any procedures need be applied to eliminate or mitigate the potential 
for interaction between the First InterComm™ System and other equipment or devices. 
• Facilities – To avoid EMI or compatibility conflicts, turn off the First InterComm™ System near any 
facility where posted notices instruct you to do so; e.g., hospitals or health care facilities.  
• Vehicles – To avoid possible interaction between First InterComm™ System and vehicle electronic 
control modules (e.g., ABS, engine, or transmission controls), the First InterComm system should be 
installed only by a professional installer. 
• Pacemakers – Maintain a minimum separation of 12 inches between First InterComm™ System 
components (the VCA100 and associated antennas) and any pacemaker to avoid potential 
interference with pacemaker function. 
 RF Exposure Compliance 
Pursuant to FCC rules for the Maximum Permissible Exposure (RF) The antenna(s) specified in this 
manual MUST be installed so as to provide a separation distance of at least 18 inches (45 cm) from all 
persons. 
In addition, the unit may not be used to transmit for more than 50% of the time (average duty cycle over a 
30 minute period). 

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EMC Installation Guidelines 
The design and manufacture of the VCA100 conforms to the appropriate Electromagnetic 
Compatibility (EMC) standards, but correct installation is required to ensure that performance is not 
compromised. Although every effort has been taken to ensure that it will perform under all conditions, it is 
important to understand what factors could affect the operation of the product. 
The guidelines given here describe the conditions for optimum EMC performance, but it is recognized 
that it may not be possible to meet all of these conditions in all situations. To ensure the best possible 
conditions for EMC performance within the constraints imposed by any vehicle, always ensure the 
maximum separation possible between different items of electrical equipment. 
For optimum EMC performance, it is recommended that wherever possible: 
 The equipment and cables connected to it are: 
•  At least 3 ft. (1 m) from any equipment transmitting or cables carrying radio signals 
•  The cables specified in this manual are used. Cutting and rejoining these cables can 
compromise EMC performance and must be avoided. 
•  If a suppression ferrite is attached to a cable, this ferrite should not be removed. 
•     If the ferrite needs to be removed during installation it must be reassembled in the same 
position. 
 General Precautions 
• DC Power – Ensure that power into the First InterComm™ System does not exceed 24VDC. 
• Explosive Environments – Ensure the First InterComm™ System is turned off before entering a 
blasting area, or in areas posted “TURN OFF TWO-WAY RADIO”.  Sparks in a potentially explosive 
atmosphere can cause an explosion or fire resulting in bodily injury or death. 

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1.0 Introduction 
The First InterComm™ System (FICS) allows first responders from different agencies at 
an emergency incident to readily communicate with one another, even though their 
radios operate on different frequencies; i.e., VHF, UHF or 800 MHz systems, both digital 
and analog.  The FICS can accommodate any new communication technologies, 
including the 700-MHz bandwidth. 
Only one vehicle from each on-scene department is required to have an installed FICS 
unit to enable linking dissimilar radio networks.  There is no requirement for special 
equipment, stand-alone towers, or other costly infrastructure. 
An optional capability included with the FICS is the Incident Commander Talkgroup 
Control™ Software (ICTCS) that allows the Incident Commander (IC), using a standard 
laptop computer with Wireless Fidelity (Wi-Fi) capability, to monitor system status and to 
control communications.  The ICTCS significantly enhances the system, but is not 
required for voice interoperability; the latter is provided by the VCA100 and associated 
antennas alone. 
The Department of Homeland Security (DHS) has designated the FICS as a Qualified 
Anti-Terrorism Technology under the SAFETY Act.  The FICS Supports the National 
Incident Management System (NIMS), and is included in the Memorial Institute for the 
Prevention of Terrorism (MIPT) “Responder Knowledge Base” and the InterAgency 
Board's (IAB) “Standard Equipment List” (SEL). 
Finally, it is important to note that using the FICS does not require changes to your 
Standard Operating Procedures (SOP).  Rather, it provides day-to-day voice 
interoperability at an incident scene, and offers improved coordination of on-site first 
responder personnel. 
This installation guide contains information for the proper installation of the FICS.  We 
strongly recommended that the system be installed in accordance with this guide, 
understanding that concessions may be needed for specific vehicles.  This guide 
assumes that the system installer is a qualified professional, familiar with the intended 
vehicle, and possesses the proper tools. 
2.0 First InterComm System™ Description 
The FICS (Figure 1) consists of: 
• VCA100 unit, matched to user’s existing radio network frequencies 
• Vehicle-mounted Wireless Fidelity (Wi-Fi) antenna 
• Land Mobile Radio (LMR) antenna, matched to user’s existing radio network 
frequencies 
• Remote On/Off switch 
• Incident Commander Talkgroup Control Software (optional capability) 

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The system operates on 12VDC vehicle power through an independent cab-mounted 
switch.  There are no speakers, microphones, or other vehicle tie-ins. 
Nine VCA100 models are available to cover the LMR bands (see Table 1).  The LMR 
antenna must match the frequency band of the VCA100 model being installed.  A 
standard, roof mounted 2.4 GHz 802.11 antenna is used for all VCA100 models. 
Figure 1.  Typical VCA100 Vehicle Installation 

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Table 1.  First InterComm VCA100 Models 
Model  Protocol  Encryption  LMR Band  Frequency Range 
VCA100-L1FCGX  FM  None  VHF Low Band  29.7 – 37 MHz 
VCA100-L2FCGX  FM  None  VHF Low band   35 – 50 MHz 
VCA100-V1FCGX  FM  None  VHF High Band 136 - 174 MHz 
VCA100-V1PCGX  FM/P25  None  VHF High Band 136 - 174 MHz 
VCA100-V1PAGX  FM/P25  DES/AES  VHF High Band 136 - 174 MHz 
VCA100-V1PDGX  FM/P25  DES  VHF High Band 136 - 174 MHz 
VCA100-U1FCGX  FM  None  UHF  450 - 520 MHz 
VCA100-81FCGX  FM  None  800  806 - 870 MHz 
VCA100-81PCGX  FM/P25  None  800  806 - 870 MHz 
VCA100-81PDGX  FM/P25  DES  800  806 - 870 MHz 
VCA100-91FCGX  FM  None  900  896 - 941 MHz 
2.1 Vehicle Communications Assembly, Model VCA100  
The VCA100 (Figure 2) is mounted in a vehicle and has no operator controls other than 
a remote power-on switch.  Once initialized, VCA100 operations are transparent to the 
operator.  Responders need only set their radio equipment to the pre-designated 
interoperability channel to monitor or speak to members of other radio networks at the 
site.  The specific VCA100 model is selected based on the radio frequencies used by 
the participating department (see Appendix A). 
•LMR: 2-way radio antenna connection, TNC.
•GPS: Reserved for future implementation.
•Ethernet: Factory use only.
•Power: The VCA100 is permanently mounted in a First Responder 
vehicle.  On/off is a cab-mounted toggle switch.
•Network: Wireless antenna port A, reverse polarity SMA connector.
•Activity Indicator: Indicator light that is on during boot up.
Ethernet Activity
Indicator
PowerLMR GPS Network
•LMR: 2-way radio antenna connection, TNC.
•GPS: Reserved for future implementation.
•Ethernet: Factory use only.
•Power: The VCA100 is permanently mounted in a First Responder 
vehicle.  On/off is a cab-mounted toggle switch.
•Network: Wireless antenna port A, reverse polarity SMA connector.
•Activity Indicator: Indicator light that is on during boot up.
Ethernet Activity
Indicator
PowerLMR GPS Network
Figure 2.  First InterComm VCA100 Unit 

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2.2 VCA100 Power Connector 
The VCA100 uses three pins of a 6-pin Molex connector as shown in Figure 3. 
Figure 3.  VCA100 Power Harness Connector – Front View 
2.3 WiFi Antenna 
The standard WiFi antenna for all VCA100 installations is the Comtelco Model A10245B 
(Figure 4), a 2.4 GHz 802.11 roof mounted antenna, with elevated feed to rise above 
cab obstructions and light bars. 
Height:14 inches
VSWR: <2.0:1
Mount: Standard TAD/NMO
Gain: 5 dBi
Mechanical: Built-in shock spring
Height:14 inches
VSWR: <2.0:1
Mount: Standard TAD/NMO
Gain: 5 dBi
Mechanical: Built-in shock spring
Figure 4.  Standard Comtelco WiFi Antenna 
2.4 Land Mobile Radio Antenna 
An LMR antenna must match the frequency of the specific VCA100 model being 
installed on the vehicle.  Appendix A lists recommended LMR antennas that may be 
used with various VCA100 models. 
1         2         3
4         5         6
NC
+12 
VDC 
Sense
NC
+12  
VDC  
Pwr 
NC 
Gnd 
Front View of 
Molex Connecto
r
1         2         3
4         5         6
1         2         3
4         5         6
1         2         3
4         5         6
NC
+12 
VDC 
Sense
NC
+12  
VDC  
Pwr 
Gnd 
Front View of 
Molex Connecto
r

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3.0 Planning the Installation 
3.1 Installation Kit Components 
Table 2 lists the deliverable installation kit for the First InterComm system.  Specific 
antennas will vary depending on the LMR frequency.  The material listed is based on 
availability; equivalent products may be used. 
Table 3 lists typical Installer-supplied parts that are vehicle specific and not supplied 
with the kit. 
 Table 2.  VCA 100 Vehicle Installation Kit 
Description  Part Number  Vendor  Qty 
VCA100 Power Harness  8422765-2  Scott Electronics  1 
Screws, center sunk head, #6-32 x .500 lg  91802A148  McMaster-Carr  4 
12 VDC Power Cable, 16 AWG (red) for 
Specification SAEJ1128 
WX16-2 (SXL 16 ga)  Waytek, Inc  20’ 
12 VDC Power Cable, 20 AWG (orange) for 
Specification SAEJ1128-GPT 
WG20-3 (GPT 20 ga)  Waytek, Inc  15’ 
Butt Splice, 16 ga Environmentally Sealed  31980  Waytek, Inc  2 
Butt Splice, Step Down, 16ga to 20 ga, 
environmentally sealed 
38058 Waytek, Inc 1 
Butt Splice, 20 ga Environmentally Sealed  30980  Waytek, Inc  2 
ATO/ATC Fuse Holder with GXL wire  46047  Waytek, Inc  1 
ATO/ATC Fuse, 10 A   46210  Waytek, Inc  1 
LMR Antenna, through mount, with hardware  Various  Multiple  1 
WiFi Antenna, elevated feed, 5dBi gain, 2.4GHz, 
through mount, 3/4-inch hole 
A10245B Comtelco 1 
WiFi Through mount base w/ 12’ cable and reverse 
polarity SMA connector 
CEZM10-RP Comtelco 1 
 Table 3.  Installer Supplied Parts 
Description  Part Number  Vendor  Quantity 
SPST Switch, illuminating, 1 A (minimum)  44206 or similar  Waytek, Inc  1 
Ground Wire, 18 AWG (black)  Varies  Tessco  As Required 
Ring Terminal, size as needed (Gnd)  Varies  Panduit  2 
Terminals, size as needed (switch)  Varies  Panduit  3 
Terminal, size as needed (main power cut in)  Varies  Panduit  1 
Grommet, rubber, various sizes  Varies  Waytek, Inc  As Required 
Cable Ties, Nylon  PLT1.5I-C20  Panduit  As Required 
Cable Tie mount, 4-way  ABMM-AT-C0  Panduit  As Required 
Screws, self tapping, #8-32, .500 lg  98273A225  McMaster-Carr  9 
Washers, size as needed  Varies  McMaster-Carr  3 

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3.2 Tools and Test Equipment  
Table 4 lists details of the test equipment and software required to install the FICS.  
These comprise: 
• A laptop computer equipped with WiFi capability, loaded with Windows® XP1 
Operating System, Service Pack 2, and FICS installer software (required to upload 
user-specific parameters into the VCA100).  The laptop is also used to test the FICS 
after installation.  
• A watt meter to test any antenna cables terminated by the installer. 
• A volt/ohmmeter to perform voltage and resistance checks. 
Table 5 lists recommended tools for the First InterComm installation.  Equivalent 
substitutes may be used as necessary. 
 Table 4.  Required Test Equipment and Software 
Description  Part Number  Vendor  Quantity 
Laptop PC with Windows XP, Service Pack 2  Varies  Varies  1 
Buffalo 2.4 GHz Wireless Network Card  WLI-CB-G54HP  Buffalo Technology   1 
BAE Systems First InterComm Installer’s CD  TBD  BAE Systems  1 
Voltage/Resistance Meter (DVM or VOM)  Varies  Varies  1 
Watt Meter w/ cables and adapters  Varies  Varies  1 
 Table 5.  Recommended Tools for First InterComm Installation 
Tool  Model/Specification 
Screwdrivers, Phillips Head  #1 and #2  
Non-insulated Crimp Tool  Thomas & Betts WT-111-M 
Crimp Tool, Ratcheting Coaxial  Cambridge 24-9960P 
Hole Saw, 3/4-inch with depth protection  Ripley HSK 19 or Antenex® HS34 
Non-Metallic Fish Tape  Klein-Lite® 50156, 25 feet 
Clutch-type Screw Gun  Makita® #6096DWE, #1 and #2 Phillips-Head bits 
Pliers Slip Jaw 
Electric Drill  3/8-inch, with HSS bits 
De-Burring Tool   
Socket Set  Quarter Inch 
Wire Cutters  Flush-cut and large 
RF Cable Termination Kit  For SMA and TNC connectors 
Heat Gun   
1 Windows is a registered trademark of Microsoft Corporation 

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3.3 System Component Locations 
WARNING 
WHEN SELECTING LOCATIONS FOR FIRST INTERCOMM COMPONENTS, AVOID HIGH 
FREQUENCY (HF) NOISE PRODUCERS AND DO NOT RUN DC POWER FEEDS TO 
THE VCA100 PARALLEL TO IGNITION CIRCUITS, ELECTRONIC MODULES, OR 
SIMILAR ITEMS.  AVOID RUNNING POWER LEADS IN PARALLEL WITH VEHICLE 
WIRING OVER LONG DISTANCES. 
3.3.1 VCA100 
The VCA100 has no operator interfaces other than an activity indicator.  Also, the unit 
has no fan; it is convection cooled and does not require any special ventilation.  
However, it is not environmentally sealed and must be installed in a protected area (THE 
ENGINE COMPARTMENT IS NOT ACCEPTABLE).  The optimum location is one in which the 
VCA100 is out of the way, its face plate and cable connections protected as much as 
possible, and there are at least six inches of space around the VCA100 to allow air 
circulation.  
Plan for cable management and strain relief loops for the cables.  Cable ties and 
mounts are needed to prevent cable movement and vibration. 
3.3.2 WiFi Antenna 
The WiFi antenna location has highest priority because the antenna’s relatively short 
range has the greatest effect on system performance.  Mount the antenna as high as 
possible on the cab roof, and as close as possible to the vehicle’s centerline to provide 
360-degree coverage.  The antenna requires a metal ground plane to achieve its full 
5dBi of gain. 
We recommend keeping the antenna at least 12 inches away from any light bars or 
other antennas and MUST be installed so as to provide a separation distance of at least 
18 inches (45 cm) from all persons.  The maximum designed distance from the VCA100 
to the WiFi antenna is 17 feet, the standard cable length that comes with the antenna.  
Extensions may be added to the cable, but this will reduce the WiFi range. 
Certain vehicles do not allow locating the antenna in the center or center-rear of the 
roof.  In this case, the next best antenna location is on the direct center of the trunk lid.  
The mounting area under the antenna must be a flat, metallized ground plane.  Be 
aware, however, that this location will degrade the WiFi range. 

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3.3.3 Land Mobile Radio Antenna 
The LMR antenna must match the frequency of the specific VCA100 model being 
installed on the vehicle.  Ensure that the new LMR antenna is not installed in close 
proximity to any existing LMR antennas.  
We recommend keeping the antenna at least 12 inches away from any light bars, 
antennas, or other roof-mounted equipment and MUST be installed so as to provide a 
separation distance of at least 18 inches (45 cm) from all persons. 
3.3.4 Power and Fuse 
The vehicle’s main power source is connected to the VCA100 by the DC power cable 
(red) that passes through an inline fuse.  Locate the fuse as close as possible to the 
power source and splice it in with weatherproof butt splices (SUPPLIED).  Mount the fuse 
assembly (Figure 5) to facilitate maintenance.  Splice the power line to the VCA100 
power harness (SUPPLIED) using the step-down splice (SUPPLIED) to accommodate the 
dissimilar wire gauges. 
Figure 5.  In-Line Fuse 
3.3.5 Manual Switch 
A second, low current, power line (orange) must run through a cab-mounted manual 
toggle switch to the VCA100 SENSE input (pin 2).  This switch is not supplied in the 
deliverable installation kit because User-specific vehicle installations vary; i.e., switch 
location is a function of User requirements and vehicle constraints.  An illuminated 
manual switch, appropriately labeled, is recommended.  Connect the switch to a 
1-ampere fuse-protected vehicle power source. 

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4.0 Installation Procedures 
4.1 VCA100 Unit 
1.  Record the VCA100 model number and serial number on the INSTALLATION SIGN 
OFF SHEET (see Appendix E). 
2.  Carefully inspect the area selected for the VCA100 unit to ensure that the area is 
free of physical or electrical obstacles that could interfere with proper installation, 
maintenance, or operation. 
3.  Attach the two L-shaped mounting brackets (Figure 6) to the sides of the VCA100 
using four #6-32 countersunk machine screws (SUPPLIED).  Attach the wide edge of 
the bracket to the VCA100; attach the narrow edge to the vehicle. 
4.  Place the VCA100 in its final location and scribe three bracket holes into the 
vehicle on each side of the VCA100 for drilling.  Select slotted or single holes as 
necessary - the VCA100 must be firmly mounted to the vehicle. 
5.  Pre-drill six holes into the vehicle to accommodate self-tapping screws.  The size 
of the hardware used determines the size of the holes. 
6.  Mount the VCA100 to the vehicle with self-tapping screws. 
Bracket-to-vehicle adjustable 
mounting holes (7 places) 
Bracket-to-VCA100
mounting holes (4 places) 
Bracket-to-vehicle adjustable 
mounting holes (7 places) 
Bracket-to-VCA100
mounting holes (4 places) 
Figure 6.  Mounting Bracket 
4.2 WiFi Antenna 
1.  Verify the center pin of the WiFi antenna cable is female (reverse polarity SMA).  
Carefully inspect the area selected for the WiFi antenna to ensure that the area is 
free of physical or electrical obstacles that could interfere with proper installation, 
maintenance, or operation. 
2.  Follow manufacturer’s installation instructions for external mounting of antenna. 
3.  Run the RF cable from the WiFi antenna to the VCA100.  Use cable ties and 
mounts to protect the cable.  Grommet all through holes to prevent cable chaffing. 
4.  At the VCA100, loosely coil up excess WiFi RF cable and lay in a stress relief loop 
if the cable cannot land with a straight in path to the VCA100 NETWORK SMA 
connector. 

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5.  Connect the WiFi RF cable to the VCA100 NETWORK A SMA connector.  Use cable 
ties and mounts to keep the cable from moving or placing stress on the SMA 
connector. 
4.3 Land Mobile Radio Antenna 
1.  Carefully inspect the area selected for the LMR antenna to ensure that the area is 
free of physical or electrical obstacles that could interfere with proper installation, 
maintenance, or operation. 
2.  Follow the manufacturer’s installation instructions for mounting of the antenna and 
for trimming it to the user’s frequency. 
3.  Run the RF cable from the LMR antenna to the VCA100.  Use cable ties and 
mounts to protect the cable.  Grommet all through holes to prevent cable chaffing. 
4.  At the VCA100, lay in a stress relief loop and cut the LMR RF cable to length.  
Terminate the cable with a TNC connector in accordance with manufacturer’s 
instructions. 
5.  Connect the LMR RF cable to VCA100 LMR TNC connector. 
4.4 DC Power 
1.  Carefully inspect the area selected for the DC power lines to ensure that the area is 
free of physical or electrical obstacles that could interfere with proper installation, 
maintenance, or operation.  
2.  Starting at the VCA100, locate a suitable chassis ground as close to the VCA100 as 
possible.  If necessary, scrape and remove paint to reach bare metal.  Drill chassis 
and use a self-tapping screw to create a chassis ground. 
3.  Locate the 20 AWG ground (black) wire of the VCA100 power harness (Pin 4).  Cut 
and strip the outer cable jacket as required.  Cut the end of the ground wire to 
length, terminating with a ring terminal, and secure the terminal to the chassis 
ground created in Step 2 (see Figure 3). 
4.  Lay in a stress relief loop and use cable ties and mounts to secure the ferrite cores 
of the power harness to the vehicle and prevent vibration or strain on the power 
connector. 
5.  Connect a suitable length of red 16 AWG wire to the VCA100 power harness main 
power (red) wire (Pin 1) (see Figure 3) using the 16 to 20 step-down environmental 
splice (SUPPLIED).  Run the other end of the wire to the VCA100 in-line fuse.  Use 
cable ties and mounts to protect the cable.  Grommet all through holes to prevent 
cable chaffing. 
6.  Connect a suitable length of orange 20 AWG wire to the VCA100 power harness 
12V Sense (white) wire (Pin 2) (see Figure 3) using the 20 AWG environmental 
splice (SUPPLIED).  Run the other end of the wire to the planned location of the 
VCA100 On/Off Switch.  Use cable ties and mounts to protect the wire.  Grommet all 
through holes to prevent cable chaffing. 

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4.5 VCA100 On/Off Switch 
1.  Carefully inspect the area selected for the VCA100 On/Off Switch to ensure that the 
area is free of physical or electrical obstacles that could interfere with proper 
installation, maintenance, or operation. 
2.  Drill or cut an area to hold the lighted toggle switch.  Mount and label the switch. 
3.  Locate a suitable chassis ground as close to the new power switch as possible.  If 
necessary, scrape and remove paint to reach bare metal.  Drill chassis and use 
self-tapping screw to create a chassis ground. 
4.  Connect a suitable length of black 20 AWG wire to the ground lug of the VCA100 
power switch using an appropriate terminal.  Cut other end to length, terminate with 
a ring terminal, and secure the assembly to the chassis ground. 
5.  Locate the end of the orange 20 AWG sense wire from the VCA100 power 
connector and cut it to length to mate with the On/Off switch.  Connect the wire to 
the power out lug of the VCA100 power switch using an appropriate terminal. 
6.  Use an appropriate terminal to connect a suitable length of orange 20 AWG wire to 
the power in lug of the VCA100 power switch.  Connect the other end of the wire to a 
1A fuse-protected vehicle power source with appropriate terminal.  Use cable ties 
and mounts to protect the wire.  Grommet through holes to prevent cable chaffing. 
7.  Reassemble any panels or consoles opened for installation of the switch.  
4.6 Fuse Assembly 
1.  Carefully inspect the area selected for the fuse assembly to ensure that the area is 
free of physical or electrical obstacles that could interfere with proper installation, 
maintenance, or operation. 
2.  Drill into the vehicle at the proper location to receive the Fuse Assembly’s cap and 
mounting tab.  Remove fuse from holder and mount holder using a self-tapping 
screw. 
3.  Locate the end of the red 16 AWG wire from the VCA100 Power harness and cut it 
to length to mate with one end of the Fuse Assembly.  Connect it to the Fuse 
Assembly using a 12AWG environmental splice (SUPPLIED). 
4.  If the Fuse Assembly lead is too short, use an environmental splice (SUPPLIED) 
connected to a suitable length of red 16AWG wire to extend the lead. 
5.  Connect the Fuse Assembly’s other wire to the vehicle’s load center or main 
+12VDC power source using the appropriate termination. 
6.  Use cable ties and mounts to protect the wire.  Grommet all through holes to prevent 
cable chaffing.  Install VCA100 Fuse. 

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5.0 Initial Power Test 
1.  Before connecting to the VCA100, use a voltmeter at the VCA100 power harness 
connector to check for a constant +12VDC, switched +12VDC, and ground (Figure 3 
shows the VCA100 power connector). 
2.  Follow the steps as listed in Table 6.  Correct any problems encountered before 
proceeding to the next step. 
 Table 6.  Initial Power Tests 
Required Equipment:  Volt/Ohm Meter 
Step  Procedure  Expected Result  Verified 
1  Verify VCA100 power harness is 
disconnected from VCA100 and energized  VCA100 power harness 
disconnected and energized   
2  Probe the VCA100 power harness connector 
Pin 1 for a constant +12 VDC  Voltmeter reads vehicle power 
as approximately +12VDC   
3  Set the VCA100 power switch to ON  Power switch is ON   
4  Probe the VCA100 power harness connector 
pin 2 for switched +12 VDC (sense)  Voltmeter reads vehicle power 
as approximately +12VDC   
5  Set the VCA100 power switch to OFF  VCA100 is OFF   
6  Probe the VCA100 power harness connector 
pin 2 for switched +12 VDC (sense)  Voltmeter reads 0 VDC   
7  Probe VCA100 power harness connector pin 
4 (ground) to chassis ground with ohmmeter  Good ground connection exists   
8  Connect VCA100 power harness to VCA100.  Items are connected.   
9  Turn on VCA100 unit and monitor Activity 
LED.  Activity LED lights up during 
boot up.   
1         2         3 
4         5         6 
NC 
+12  
VDC  
Sense 
NC 
+12  
VDC  
Pwr 
Gnd Gnd 
Front View of 
Molex Connector
1         2         3 
4         5         6 
1         2         3 
4         5         6 
1         2         3 
4         5         6 
NC 
+12  
VDC  
Sense 
NC 
+12  
VDC  
Pwr 
Gnd 
Front View of 
Molex Connector
NC 

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6.0 Update User Specific Parameters  
The VCA100 is delivered with factory-installed default parameters.  After vehicle 
installation, the unit must be updated with user-specific parameters.  This programming 
is done using BAE Systems’ supplied VCA MANAGEMENT PROGRAM and utilities loaded 
on a maintenance laptop equipped with a Buffalo Technology WLI-CB-G54HP wireless 
network card. 
6.1 Preparation 
1.  Appendix B contains instructions for operating the Serial IP and the VCA 
MANAGEMENT PROGRAM. 
2.  Record the required VCA100 User information in Table 7.  This information will be 
broadcast on the WiFi network. 
 Table 7.  Required User Information 
Item  Parameter  Format  User Data 
1  Department Name  Up to 128 Characters.   
2  Vehicle ID  Up to 128 Characters.   
3 Vehicle Type  Icon on WiFi network pulldown 
menu; e.g., fire, police, ambulance.   
4  Nickname  Up to 16 Characters   
5 Bandwidth  Wide (25 kHz) or 
Narrow (12.5 kHz)   
6  Mode  Analog or Digital, pulldown menu   
7  Transmit Power  High or Low, pulldown menu   
8  Transmit Frequency  Numeric entry in MHz   
9  Receive Frequency  Numeric entry in MHz   
10  Transmit Private Line Code  Frequency or Alphanumeric 
[e.g. 94.8Hz (2A)], Pulldown menu   
11  Receive Private Line Code  Frequency or Alphanumeric 
[e.g. 94.8Hz (2A)], Pulldown menu   
12  VCA100 ID  Serial number on unit   

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6.2 VCA100 Update Procedure 
1.  Appendix B contains instructions for operating the Serial IP and the VCA 
MANAGEMENT PROGRAM. 
3.  Follow the steps as listed in Table 8.  Correct any problems encountered before 
proceeding to the next step. 
 Table 8.  VCA100 Update Procedure 
Required Items: 
a.  VCA100 Installed in vehicle 
b.  User Parameters (Table 7 of this document). 
c.  Installer’s WiFi Laptop configured using BAE Systems’ Installation CD 
Step  Procedure  Expected 
Result  Verified
1  Turn on VCA100.  Wait one minute for boot up to complete.  Booted   
2  Turn on the laptop and connect to First_InterComm_Network  Connected   
3  Execute VCA MANAGEMENT PROGRAM (see Appendix B in this 
document) and input specific User Parameters.  Updated  
4  Close VCA MANAGEMENT PROGRAM and launch Serial IP program 
(see Appendix B in this document)  Running  
5  Program VCA100 RF module with specific User LMR frequencies 
and PL Codes.  Programmed  

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7.0 Unit Test Plan  
Follow the test procedures described in Paragraphs 7.1 and 7.2.  Correct any problems 
found, retest, and record final results on the INSTALLATION SIGN OFF SHEET (Appendix E). 
7.1 LMR Antenna VSWR Test 
Perform an antenna VSWR test using the antenna manufacture’s procedure or a 
standard industry accepted procedure.  Record results in Table 9. 
Note 
THIS TEST IS NOT REQUIRED IF THE ANTENNA WAS TERMINATED BY THE OEM AND 
HAS NOT BEEN MODIFIED. 
 Table 9.  LMR Antenna VSWR Test Results 
Required Material: 
a.  VCA100 installed in vehicle with LMR Antenna and cable under test  
b.  Antenna OEM’s VSWR procedure (or standard industry accepted VSWR procedure) 
c.  Watt meter 
Step  Procedure  Requirement  Result 
1  Perform selected VSWR procedure.  Record result. < 2:1 VSWR   
7.2 System Functional Test 
1.  Follow the test steps in Table 10 to verify the VCA100’s key functions and its ability 
to operate in a network. 
2.  Correct any problems found, retest, and record final results on the INSTALLATION SIGN 
OFF SHEET (Appendix E). 
 Table 10.  System Functional Test Results 
Required Material: 
a.  VCA100 under test installed in vehicle and configured with user parameters 
b.  Known good user LMR with the same Frequency and PL Code as the VCA100 under test 
c.  Known good second VCA100 and LMR set to a different frequency than the VCA100 under 
test  
Step  Procedure  Expected Result  Verified 
1  Turn on VCA100 under test.  Wait one minute for boot 
up to complete.  Boot up complete   
2  Turn on LMR associated with the VCA100 under test.  
Verify the proper channel is selected.  Proper channel selected   
3  Turn on known good second VCA100.  Wait one minute 
for boot up to complete.  Boot up complete   
4  Turn on LMR associated with known good VCA100.  
Verify proper channel is selected.  Proper channel selected   
5  Verify 2-way communication through both units occurs 
without distortion, breakup, or dropouts.  Record final 
result on Installation Sign Off Sheet. Communication is good   

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8.0 Troubleshooting 
Appendix D contains detailed troubleshooting procedures for the FICS. 
 IMPORTANT 
• If the FICS appears to interfere with incident site operations, 
immediately turn off every VCA unit (and ICTCS if in use), and return 
to normal SOP. 
• If ICTCS or laptop computer problems occur, the VCA100 units will 
remain in their assigned Talkgroups.  If the laptop or ICTCS is not 
functional, and communications is needed between all responders, 
power-cycle all VCA100s. 
9.0 BAE Support Information 
• Telephone Support:  (603) 759-1027 
• E-Mail: firstintercomm.eis@baesystems.com 
• Web: http://www.Firstintercomm.com 
10.0 Companion Documentation 
• First InterComm
™
 System User Guide, Document No. A29798, November 2007. 
• First InterComm
™
 System Incident Commander Talkgroup Control Software, 
Document No. A29800, October 2007. 

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Appendix A 
Recommended LMR Antennas 
Table A-1.  Recommended LMR Antennas 
Model  Suggested Antennas  LMR Band  Frequency Range  Protocol  Encryption 
VCA100-L1FCGX  C27, C30, C34  VHF Low Band  29.7 – 37 MHz  FM  None 
VCA100-L2FCGX  C34, C37, C40, C47  VHF Low band  35 – 50 MHz  FM  None 
VCA100-V1FCGX  B1323  VHF High Band  136 - 174 MHz  FM  None 
VCA100-V1PCGX  B1323  VHF High Band  136 - 174 MHz  FM/P25  None 
VCA100-V1PAGX  B1323  VHF High Band  136 - 174 MHz  FM/P25  DES/AES 
VCA100-V1PDGX  B1323  VHF High Band  136 - 174 MHz  FM/P25  DES 
VCA100-U1FCGX  B4503, B4703, B4903  UHF  450 - 520 MHz  FM  None 
VCA100-81FCGX  B8063  800  806 - 870 MHz  FM  None 
VCA100-81PCGX  B8063  800  806 - 870 MHz  FM/P25  None 
VCA100-81PDGX  B8063  800  806 - 870 MHz  FM/P25  DES 
VCA100-91FCGX  B8963  900  896 - 941 MHz  FM  None 
 Table A-2.  LMR Antenna Specifications 
Manufacturer  Part Number  Frequency 
(MHz)  Gain 
(dBi)  Wave 
Length  Load  Tunable  Height 
(inches) 
Laird C27 26.75-31 Unity 1/4 Coil Style Yes 52.5 
Laird C30 30-35  Unity 1/4 Coil Style Yes 52.5 
Laird C34 34-37  Unity 1/4 Coil Style Yes 52.5 
Laird C37 37-40  Unity 1/4 Coil Style Yes 52.5 
Laird C40 40-47  Unity 1/4 Coil Style Yes 52.5 
Laird C47 47-50  Unity 1/4 Coil Style Yes 52.5 
Laird B1323 132-174  3 5/8 Coil Style Yes 57 
Laird B4503 450-470  3 5/8 Coil Style Yes 13 
Laird B4703 470-490  3 5/8 Coil Style Yes 12.5 
Laird B4903 490-512  3 5/8 Coil Style Yes 12.5 
Laird B8063 806-866  3 
5/8  Base Yes 4 7/8 
Laird B8963 896-970  3 
5/8  Base - 4 7/8 

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Appendix B 
VCA100 Software Programs and Utilities 
B.1  BAE Systems VCA Management Program 
The VCA Management Program is used to connect wirelessly to the VCA100 in order to 
change User parameters and upgrade software on the VCA100.  The procedure is to: 
1. Launch the BAE Systems VCA Management Program software using the Windows 
start button to navigate to and click on the TBD Icon. 
2.  Enter password in the pop up window and click Validate. 
3.  Select the VCA100 to be updated by clicking on it in the VISIBLE UNITS pane of the 
VCA Management window (Figure B-1) 
4.  Fill in the fields with new parameter information.  Click on Commit to update. 
5.  If the VCA100 software requires upgrading, click on Browse and navigate to the 
location of the new software file. 
6.  Click on the filename to enable the Update button.  The field next to the button will 
display the filename. 
7. Click on Update and monitor the UPGRADE STATUS bar for progress. 
8. Perform the SYSTEM FUNCTIONAL TEST described in Paragraph 7.2 to verify that the 
newly programmed VCA100 communicates with other VCA100 units. 
Figure B-1.  FirstInterComm™ VCA Management Window 

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B.2  Serial IP Program 
Serial IP, a utility program, creates a virtual COM port that associates an IP address 
with a hardware COM port.  This allows RS-232 programming over a wireless link to the 
VCA100 RF Module.  The procedure is to: 
1. Start the VCA MANAGEMENT PROGRAM (Paragraph B.1) to enable access to the 
VCA100. 
2.  Start the Serial IP Panel (Figure B-2) using the Windows start button; i.e., 
START 
Æ
 ALL PROGRAMS 
Æ
 SERIAL IP 
Æ
 CONTROL PANEL 
3.  Enter the unit’s IP address into the IP ADDRESS BOX (10.0.0.X), where X is the last 
digits of the unit’s serial number.  Enter 7000 into the Port Number box. 
4.  Set the COM port to COM2 in the Serial IP Control Panel; 
SELECT PORTS... 
Æ
 COM2
Æ
 OK 
5.  Click on the Configuration Wizard (Figure B-3) in the SERIAL IP CONTROL PANEL. 
6. Click Start in the wizard. 
7.  Watch the STATUS window in the Configuration Wizard to verify that the TELENET 
session progresses successfully and that all check marks are green. 
8. Click on Use Settings in the CONFIGURATION WIZARD to complete the Serial IP setup 
and enable the virtual Com Port. 
Figure B-2.  Serial IP Control Panel and Select Port Windows 

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Figure B-3.  Serial IP Program Configuration Wizard 

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Appendix C 
Acronyms and Abbreviations 
ABS  Antilock Brake System 
AES  Advanced Encryption Standard 
ATC  Automotive Blade-Type Fuse 
ATO  Automotive Blade-Type Fuse 
AWG  American Wire Gauge 
COM Communication (port) 
DC Direct Current 
DES  Data Encryption Standard 
DHS  Department of Homeland Security 
EMI Electromagnetic Interference 
EMS  Emergency Medical Service 
FCC  Federal Communications Commission 
FICS First InterComm™ System 
FM Frequency Modulation 
GPS  Global Positioning System 
GXL  Brand name for a cross-linked polyethylene jacketed wire 
HF High Frequency 
HSS  High Speed Steel 
IAB InterAgency Board 
IAN  Incident Area Network 
IC Incident Commander 
ICTCS  Incident Command Talkgroup Control Software 
ID Identification 
IP Internet Protocol 
LED  Light Emitting Diode 
LMR  Land Mobile Radio 
MIPT  Memorial Institute for   the Prevention of Terrorism 
NIMS  National Incident Management System 
NMO New Motorola 
OEM  Original Equipment Manufacturer 
P25  Project 25 (digital encryption protocol) 
RF Radio Frequency 
SAE  Society of Automotive Engineers 
SEL  Standardized Equipment List 
SMA  Subminiature A-type (connector) 
SOP Standard Operating Procedures 
SPST  Single Pole, Single Throw 
TBD  To Be Determined 
TNC  Threaded Neill-Concelman (connector) 
UHF  Ultra High Frequency 
VCA  Vehicle Communications Assembly 
VHF  Very High Frequency 
VSWR  Voltage Standing Wave Ratio 

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WiFi Wireless Fidelity 

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Appendix D 
Troubleshooting Procedures 
To Be Supplied 

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Appendix E 
Installation Sign Off Sheet 
I CERTIFY THAT THE FIRST INTERCOMM SYSTEM SUPPLIES AND 
INSTALLATION SERVICES HAVE BEEN FURNISHED IN ACCORDANCE WITH 
APPLICABLE CONTRACT  REQUIREMENTS.    
Site Name:  __________________________________________________ 
Site Location:   __________________________________________________ 
Vehicle VIN:   __________________________________________________ 
Vehicle Type / Model:   __________________________________________________ 
VCA100 S/N:  __________________________________________________ 
The undersigned agree that the Unit Test Plan has been satisfactorily completed, 
with the exception of the outstanding items identified below, which must be 
resolved per the list below in order for Customer to be fully satisfied. 
______________________________________________________________________ 
Name, Title (BAE Systems Representative) Date___________________________  
______________________________________________________________________ 
Name, Title (Customer)  Date ____________________________ 
 OUTSTANDING ISSUES 
Test Para.  Issue  Resolution Plan  Resolution 

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