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Positron 7715-3, Description And Installation

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7715-3

2

Standalone Power Supply Unit, 48 Vdc to -24 Vdc

Figure 1

Model 7715-3

3-7/8"

MOUNTING TRAY

RIGHT  SIDE  VIEW

16-1/4"

FRONT  VIEW

POSITRON # 7715-3

POWER

FAST-BLO

1.5 AMP

MOUNTING

TRAY

INPUT CABLE

9-2/3"

INPUT FUSE

ANCHORING BRACKET

OUTPUT CONNECTOR

Summary of Contents for 7715-3

Page 1: ...Standalone Power Supply Unit 48 V dc to 24 V dc 7715 3 Description and Installation...

Page 2: ...d 2 shall use same for operating and maintenance purposes only DISCLAIMER NOTICE Although Positron Inc has made every effort to ensure the accuracy of the information contained herein this document is...

Page 3: ...ndalone Power Supply Unit 1 2 Hardware Description 4 3 Technical Specifications 6 4 Installation 7 4 1 Mechanical Installation 9 4 1 1 Wall Mount 10 4 1 2 Teleline Shelf Mount 10 4 2 Electrical Instal...

Page 4: ......

Page 5: ...hree Five or Eight card Shelf For a view of the Standalone Power Supply Unit refer to Figure 1 The installation kit consists of the Standalone Power Supply Unit in a durable metal enclosure The kit co...

Page 6: ...r Supply Unit 48 Vdc to 24 Vdc Figure 1 Model 7715 3 3 7 8 MOUNTING TRAY RIGHT SIDE VIEW 16 1 4 FRONT VIEW POSITRON 7715 3 POWER FAST BLO 1 5 AMP MOUNTING TRAY INPUT CABLE 9 2 3 INPUT FUSE ANCHORING B...

Page 7: ...version The unit s input is protected against overvoltage transients Two 1 amp input fast blow fuses protect the power supply against ground faults and the station battery against a malfunction of the...

Page 8: ...e Description For the unit s block diagram refer to Figure 2 Figure 2 Block Diagram Overvoltage Protection RF Filter Rectifier Filter Smooth Charge Circuit Transformer Solid State Switch Voltage Regul...

Page 9: ...e from the power supply being introduced onto the power leads Solid State Switch The Solid State Switch is the switching circuit of the switch mode power supply Transformer The Transformer provides 15...

Page 10: ...H Table 2 Physical Specifications Parameter Specifications Input station voltage 42 to 56 V dc Input power at full load 58 W Nominal output voltage 24 V dc Maximum output current 2 0 A Maximum output...

Page 11: ...rm these procedures on a clear dry day when a Ground Potential Rise GPR or transients are less likely to occur This unit utilizes CMOS circuitry that can be damaged by static electricity The unit is n...

Page 12: ...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 5 Confirm that the unit is a Standalone Power Supply...

Page 13: ...echanical 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 3 Figure...

Page 14: ...e wall using the three 14A screws and washers provided 3 Align the holes on the left side of the power supply enclosure with those on the left side of the mounting tray Use the two 1 2 bolts and washe...

Page 15: ...nnections refer to Table 5 Table 5 Power Supply Unit Input Connections 2 Connect the power supply output to the shelf For a Five or Eight card Shelf this may be accomplished via the Station side cable...

Page 16: ...lation gap between the Station and CO side circuits Then close and secure the shelf cover with the captive screws 4 Verify that you obtain 24 V inside the shelf Note Blown fuses are the only circuit c...

Page 17: ...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 actua...

Page 18: ...lease take this into consideration when requesting a Return Material Authorization RMA number Before returning any items to Positron for repair warranty repair or replacement call the Repair departmen...

Page 19: ...equired on site All orders must be followed by a confirming order Equipment will not be shipped until such confirmation is received For a list of our contact information refer to Table 7 Table 7 Posit...

Page 20: ......

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