Related Manuals for Positron 7715-3
Summary of Contents for Positron 7715-3
- Page 1 Standalone Power Supply Unit 48 V dc to -24 V dc, 7715-3 Description and Installation...
- Page 2 The information contained in this document is the property of Positron Inc. Except as specifically authorized in writing by Positron Inc., the holder of this document: 1) shall keep all information contained herein confidential and shall protect same in whole or in part from the disclosure and dissemination to all third parties, and 2) shall use same for operating and maintenance purposes only.
-
Page 3: Table Of Contents
Contents The Standalone Power Supply Unit ..........1 Hardware Description . -
Page 5: The Standalone Power Supply Unit
Standalone Power Supply Unit, 48 Vdc to -24 Vdc The Standalone Power Supply Unit The Standalone Power Supply Unit, model 7715-3 converts floating 48 V dc from a station battery to -24 V dc referenced to station ground. This large capacity standalone power supply, can be used to power a fully loaded Three, Five or Eight-card Shelf. - Page 6 Standalone Power Supply Unit, 48 Vdc to -24 Vdc Figure 1 Model 7715-3 FRONT VIEW 16-1/4" FAST-BLO 3-7/8" 1.5 AMP POWER POSITRON # 7715-3 MOUNTING TRAY RIGHT SIDE VIEW 9-2/3" MOUNTING TRAY INPUT FUSE OUTPUT CONNECTOR ANCHORING BRACKET INPUT CABLE...
- Page 7 7715-3 Standalone Power Supply Unit, 48 Vdc to -24 Vdc Its features include the following: • The unit may be used with both the old and new generation multi-card Teleline shelf. • The unit supplies continuous -24 V dc at up to 2 A from a 48 V dc floating station battery, without compromising its floating nature.
-
Page 8: Hardware Description
7715-3 Standalone Power Supply Unit, 48 Vdc to -24 Vdc Hardware Description For the unit’s block diagram, refer to Figure 2. Figure 2 Block Diagram 48 V dc in Solid Overvoltage Timing State Protection Switch Smooth Transformer Charge Circuit Rectifier/... - Page 9 7715-3 Standalone Power Supply Unit, 48 Vdc to -24 Vdc The following is a description of the elements of the Standalone Power Supply Unit block diagram. Overvoltage Protection The Overvoltage Protection is supplied by metal oxide varistors (MOVs) in metallic and longitudinal configuration that will blow the input fuses in case of sustained overvoltage at the input.
-
Page 10: Technical Specifications
7715-3 Standalone Power Supply Unit, 48 Vdc to -24 Vdc Technical Specifications For a listing of the unit’s electrical specifications, refer to Table 1. For a listing of the unit’s physical specifications, refer to Table 2. Table 1 Electrical Specifications (measured at 77°F or 25°C, 50% R.H.)) -
Page 11: Installation
The unit is not to be opened. Verify that you are not using any equipment which is incompatible with the Standalone Power Supply Unit. Do not use power supply 7715-3 with any other plug-in or standalone -24 V dc power supply. For a listing of incompatible equipment, refer to Table 3. - Page 12 Check the contents of your Standalone Power Supply Unit. For a listing of the items included in the kit, refer to Table 4. Table 4 Model 7715-3 Kit Contents Items Included Part Number Standalone Power Supply Unit...
-
Page 13: Mechanical Installation
Standalone Power Supply Unit, 48 Vdc to -24 Vdc Mechanical Installation The power supply unit can be installed on a self-supporting wall-mounted tray, or directly on the Teleline shelf. For an illustration of its installation, refer to Figure Figure 3 Model 7715-3 Installation MOUNTING TRAY ANCHORING BRACKET... -
Page 14: Wall Mount
7715-3 Standalone Power Supply Unit, 48 Vdc to -24 Vdc 4.1.1 Wall Mount Using the mounting tray as a template, position it against the desired location (above or beside the shelf) and drill three, 5/32” diameter holes into the 1” plywood surface. -
Page 15: Electrical Installation
7715-3 Standalone Power Supply Unit, 48 Vdc to -24 Vdc Electrical Installation Caution The station and Central Office (CO) cables should be kept at least six inches apart upon wiring in order to prevent an electric arc between the two in the event of damage to, or degradation of, their insulation. - Page 16 Station and CO side circuits. Then close and secure the shelf cover with the captive screws. Verify that you obtain -24 V inside the shelf. Note Blown fuses are the only circuit components to be replaced by customer maintenance personnel. Contact Positron should any other maintenance be required.
-
Page 17: Service And Support
Arrangements and pricing information regarding field assistance may be obtained by contacting the Technical Customer Support department. Please contact Positron for scheduling at least four weeks prior to the actual requested visit date. Customer Training Positron offers full customer training courses, as requested. - Page 18 Positron Inc. offers repair services by which customers can count on timely and quality repairs, regardless of customer location. All warranty repairs are performed at no cost. Positron reserves the right to repair or replace any equipment which has been found to be defective.
- Page 19 Standalone Power Supply Unit, 48 Vdc to -24 Vdc Ordering Information Positron’s Teleline equipment can be ordered by telephone, facsimile, or by mail. All orders should be directed to the Positron Inside Sales department. Ordering by telephone, or facsimile will eliminate any delays arising from postal services.
Need help?
Do you have a question about the 7715-3 and is the answer not in the manual?
Questions and answers