EFJohnson VR-CM50 manual Wiring of Surge Arrestor Boxes, Surge Arrestor BOX Wiring

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CENTRAL PROCESSOR PACKAGE INSTALLATION

2.9 WIRING OF SURGE ARRESTOR BOXES

Typically, connectors P9 through P13 on the stan- dard I/O panel (connectors P4 through P6 on 14 card cabinets) will be assigned for RTL I/O connectors.

1.Connect the female end of an A600950A, 25 pair cable to the connector in the surge box. Dress the cable as shown in Fig. 2-10. above. Use a split rub- ber grommet (furnished) to protect the cable where it passes through the surge box bottom flange. Connect the male end of this cable to the appropri- ate mating connector in the CPP cabinet. Use a CHAMP LOC spring (furnished) to secure each end of the connector. Coil and tie any excess cable - do not shorten the cable length.

2.Use 25 pair inside telephone cable to connect the surge arrestor block to an RTL demarcation point punch block following the standard color code assignment shown in Table 2-3. Since not all

installations use all pairs present on the surge arres- tor block, some installers prefer to use individual 24 gauge solid twisted pair cross-connect wires rather than a 25 pair cable. Dress the cable or wire pairs using standard telephone wire management devices and techniques to effect a neat installation. The use of bridging clips on each demarcation block is strongly recommended to allow the console system to be isolated for troubleshooting. The connections are defined in reports titled RTL I/O PAIR ASSIGNMENTS. A separate report is provided for each I/O connector.

3.Be sure to replace the lids on all surge arrestor boxes. It is suggested that you place a copy of the pair assignments for each box inside the box for future reference.

Figure 2-12 SURGE ARRESTOR BOX WIRING

 

February 1996

2-11

Part No. 004-3039-274

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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 Sample Packing List Receiving InformationTools Required Hardware Included for Installation and AssemblyCPU Cabinet Hardware Location of the Central PROCES- SOR Package CPPRear View Joining TWO CPU Cabinets Cable Routing Connection of the Central PRO- Cessor Package CablesPlacement of Surge Arrestor Boxes Wall or Panel Board InstallationMounting of Surge Arrestor BOX- ES and Ground Bracket Grounding the System Star Grounding ConfigurationGrounding Installation Common Ground Bracket AssemblyCPP I/O Panels CPP I/O PanelsI/O Panel Report Sample Customer Data SheetsRTL I/O Panel Assignments 10 Logging Recorder 12 Surge Arrestor BOX Wiring Wiring of Surge Arrestor BoxesAssignments Standard Color CodeDispatch Position Connections Voter System ConnectionsModem Installation Printer Installation13 CPU Relay Panel 14 14 Card Relay Panel PA System Feed Connections to AC PowerIntroduction Tools RequiredConsole Arrangement Main Console Assembly HolesTions Console Leveling Writing Support Rail Mounting Formica Writing Surface ARRANGE- MentWriting Support Rail Mounting Attaching the Formica Writing SUR- Face Joining FormicaFormica Writing Surface and Trim Cabinetry OptionsStabilizer KIT Option Adjustable Keyboard Seat OP- Tion Universal Keyboard DrawerMounting Option Universal Pencil Drawer MOUNT- ING Option Typewriter Extension Assemblysembly OptionMounting PIE Support Rail Mounting OP- TionCRT Monitor Shelf FXM-192 OP- Tion 16 PIE Support Rail Mounting18 CRT Monitor Shelf Monitor Shelf Hardware CRT Interface Processor CIP -3 Power Supply Hardware Install the PC/UPS Slide Tray -1 PC UPS Option NumbersInstall the CIP Power Supply Slide Tray HardwareCIP Tray Hardware Install the CRT Interface PROCE- SOR CIP TrayCIP Tray with Microphone CIP Tray Cable Connections This page intentionally left blank PC UPS Options Install the PC and UPSConnect the PC CPU and PC UPS POW- ER Cords TionsRefer to -2and Table Connect the CRT Interface Processor CIP Tray CablesInstall CRT Touchscreen Option TDV-OP492 Install the CRT MonitorInstall Headset Jack Options TDV- OP406, 407 Install CRT Trackball OPTION/ Mouse OptionInstall Second Volume Control Knob Volume Control HardwareConnector Headset SET UP and Operation of the HEAD- SET JackThis page intentionally left blank Initial POWER-UP and CHECK-OUT Equipment CHECK-OUT and AdjustmentsConsole Adjustments CPP AdjustmentsAlign the CRT Touchscreen with the PC Computer Headset Receive LimitAfter System CHECK-OUT Screen

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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