Positron 7715-3 Скачать руководство пользователя страница 11

Standalone Power Supply Unit, 48 Vdc to -24 Vdc

7

7715-3

4.

Installation

This installation procedure assumes that the Three, Five or Eight-card Shelf 
being used has already been mounted as per its installation instructions. For 
further information, refer to the Description and Installation documentation for 
the Three-card Shelf, model 751127, part number 924-010186-001, 
Five-card Shelf, model 751112/1, part number 924-010199-001, or the 
Eight-card Shelf, model 751109/13, part number 924-010040-001, respectively.

Caution

Stand on a thick rubber mat and wear rubber gloves during the 
installation procedure. It is preferable to perform 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 not to be opened.

1.

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.

Table 3

Incompatible Equipment

Do Not Use Power Supply 7715-3 with the Following Equipment

A shelf containing one or more -24 V dc plug-in power supply cards 
(the -24 V dc plug-in card must be permanently removed from the 
shelf if a standalone -24 V dc supply is used)

751313
751316
751324

A shelf powered by any other -24V dc standalone supply

7715-2
7856-3

Содержание 7715-3

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

Страница 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...

Страница 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...

Страница 4: ......

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 20: ......

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