EFJohnson VR-CM50 manual Common Ground Bracket Assembly, Grounding Installation

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CENTRAL PROCESSOR PACKAGE INSTALLATION

Figure 2-5 COMMON GROUND BRACKET ASSEMBLY

2.6 GROUNDING INSTALLATION

#1 Lug

Connect a #6 THHN bare ground wire to the TOP RIGHT (first) copper lug on the common ground bracket assembly to all RTL kits (make this by taking a length of the #6 THHN wire and stripping it). If multiple surge arrestor boxes are used, run the #6 THHN wire through the lugs of all boxes in a straight line. Tighten all clamps securely using the proper size screwdriver ( 1/4" flatblade).

#2 Lug

It is very important to connect the earth ground wire to lug #2, the lug opposite the CPP Cabinet lug and RTL kits lugs. Refer to Figure 2-5for acorrect

placement of the connections on the common ground bracket assembly. Use #4 THHN wire to connect to the ground clamp.

#3 Lug

Connect a #6 THHN wire to lug #3 (third from top) on the common ground bracket assembly to the ground lug in the CPP cabinet. Refer to Figure 2-5for the location of the ground lug in the CPP cabinet.

#4, #5 Lug

Connect a #6 THHN ground wire from lugs 4, 5, etc. of the ground bracket assembly to the ground lug on each console position. A ground lug and hardware has been furnished with the cable kit for each console.

February 1996

 

Part No. 004-3039-274

2-6

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Contents VR-CM50 Console System Installation Guide Page VR-CM50 Console System Installation Guide Page Table of Contents List of Figures List of Tables Page Receiving Information Sample Packing ListHardware Included for Installation and Assembly Tools RequiredLocation of the Central PROCES- SOR Package CPP CPU Cabinet HardwareRear View Joining TWO CPU Cabinets Connection of the Central PRO- Cessor Package Cables Cable RoutingWall or Panel Board Installation Placement of Surge Arrestor BoxesMounting of Surge Arrestor BOX- ES and Ground Bracket Star Grounding Configuration Grounding the SystemCommon Ground Bracket Assembly Grounding InstallationCPP I/O Panels CPP I/O PanelsSample Customer Data Sheets I/O Panel ReportRTL I/O Panel Assignments 10 Logging Recorder Wiring of Surge Arrestor Boxes 12 Surge Arrestor BOX WiringStandard Color Code AssignmentsDispatch Position Connections Voter System ConnectionsPrinter Installation Modem Installation13 CPU Relay Panel 14 14 Card Relay Panel Connections to AC Power PA System FeedTools Required IntroductionConsole Arrangement Holes Main Console AssemblyTions Console Leveling Formica Writing Surface ARRANGE- Ment Writing Support Rail MountingWriting Support Rail Mounting Joining Formica Attaching the Formica Writing SUR- FaceCabinetry Options Formica Writing Surface and TrimStabilizer KIT Option Universal Keyboard Drawer Adjustable Keyboard Seat OP- TionMounting Option Typewriter Extension Assemblysembly Option Universal Pencil Drawer MOUNT- ING OptionMounting PIE Support Rail Mounting OP- Tion16 PIE Support Rail Mounting CRT Monitor Shelf FXM-192 OP- Tion18 CRT Monitor Shelf Monitor Shelf Hardware Install the PC/UPS Slide Tray -1 PC UPS Option Numbers CRT Interface Processor CIP -3 Power Supply HardwareInstall the CIP Power Supply Slide Tray HardwareInstall the CRT Interface PROCE- SOR CIP Tray CIP Tray HardwareCIP Tray with Microphone CIP Tray Cable Connections This page intentionally left blank Install the PC and UPS PC UPS OptionsConnect the PC CPU and PC UPS POW- ER Cords TionsConnect the CRT Interface Processor CIP Tray Cables Refer to -2and TableInstall the CRT Monitor Install CRT Touchscreen Option TDV-OP492Install CRT Trackball OPTION/ Mouse Option Install Headset Jack Options TDV- OP406, 407Install Second Volume Control Knob Volume Control HardwareSET UP and Operation of the HEAD- SET Jack Connector HeadsetThis page intentionally left blank Equipment CHECK-OUT and Adjustments Initial POWER-UP and CHECK-OUTCPP Adjustments Console AdjustmentsHeadset Receive Limit Align the CRT Touchscreen with the PC ComputerScreen After System CHECK-OUT

VR-CM50 specifications

The EFJohnson VR-CM50 is a state-of-the-art mobile communications solution designed for first responders and public safety agencies. This versatile device is engineered to enhance communication efficiency and reliability, ensuring that users can stay connected in critical situations.

The VR-CM50 features a rugged design, built to withstand the harsh environmental conditions often encountered by emergency personnel. It meets military specifications for durability, including shock, vibration, and water resistance. With a lightweight and compact form factor, the VR-CM50 is easy to install in various vehicles without compromising the available space or mobility.

One of the standout technologies in the VR-CM50 is its advanced digital trunking capability. The device operates on multiple frequency bands, allowing for seamless communication across various networks. This flexibility is crucial for interoperability among different agencies, especially during joint operations or mutual aid scenarios.

The VR-CM50 also offers enhanced audio quality, ensuring that users can clearly hear and be heard even in noisy environments. Its digital signal processing technology minimizes background noise and enhances voice clarity. This feature is vital for first responders who often communicate in high-pressure situations where every word counts.

Another key characteristic of the VR-CM50 is its integration with a wide range of communication systems. The device is compatible with various communication protocols, enabling connection with existing infrastructure. This adaptability allows agencies to leverage their current resources while benefiting from the latest technological advancements.

The VR-CM50 promotes user safety with built-in emergency features. It includes a dedicated emergency button that, when pressed, instantly alerts dispatchers and other personnel of the user's location and status. This feature is particularly beneficial for officers on patrol or in isolated areas, enhancing their safety during critical incidents.

Furthermore, the VR-CM50 supports GPS capabilities, providing real-time location tracking for fleet management and situational awareness. This technology not only improves operational efficiency but also enhances coordination during complex incidents.

In summary, the EFJohnson VR-CM50 is a robust and feature-rich mobile communication solution tailored for public safety professionals. Its rugged construction, advanced digital trunking, superior audio quality, and integration capabilities make it an essential tool for effective communication in the field. By fostering interoperability and user safety, the VR-CM50 stands as a reliable choice for agencies striving to enhance their emergency response capabilities.
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