Related Manuals for AT&T SPIRIT 371 Protector Assembly
Summary of Contents for AT&T SPIRIT 371 Protector Assembly
- Page 1 AT&T SPIRIT™ Communication System In Range–Out of Building (IROB) Telephone Installtion Instructions...
- Page 2 1. General These installation instructions cover the description and installation of the Model 371 Protector Assembly. The Model 371 is designed to protect both the control unit and the telephone sets of the SPIRIT™ Communications System from foreign voltages caused by lightning, power contact, or power induction. Two (2) Model 371 Protector Assemblies are installed whenever the station is outside of the building but less than 1,000 feet from the SPIRIT™...
- Page 3 2.Description 2. Description (Cont’d) The Model 371 IROB Protector Assembly is composed of a Model 349-2LG MKII Secondary Protector (Model 371-02) Primary Protector, a Model 371-02 Secondary Protector, and a Model 151 Faceplate Ground Adapter Screw. Each protector is mounted in a separate housing with a hinged cover.
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Page 4: Installation
3. Installation (Cont’d) 3. Installation Secondary Protector (Model 371-02) Primary Protectors In addition to the primary protectors, two (2) Model 371-02 Secondary Protectors Two (2) Model 349-2LG MKII Primary Protectors are required for each IROB are required for each, IROB telephone installation. One must be placed within telephone. - Page 5 4. Wiring (Cont'd) 4. Wiring Secondary Protector (Model 371-02) Primary Protector (Model 349-2LG MKII) The control unit's secondary protector must be connected to the green wire ground at the control unit's AC power outlet. Connect a 12 AWG insulated copper wire, First, ground the protector be connecting a No.
- Page 6 5. Selection of an Approved Ground 6. References National Electrical Code Handbook, 1984, published by the National Fire Protection The first choice for approved ground uis some part of the power grounding system Association. (Figure 3). The National Electrical Code requires that the telephone and power AT&T Standard Practices.