Positron 7715-3 Скачать руководство пользователя страница 18

7715-3

14

Standalone Power Supply Unit, 48 Vdc to -24 Vdc

equipment will meet customer requirements beyond the product specification. 
Positron disclaims any warranty that operations will be uninterrupted or error 
free.

Repair Service

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.

For information about out-of-warranty repairs, contact Positron’s Repair 
department at 1-800-661-4911 (from anywhere in the continental United States 
or from Canada) or dial 514-345-2228. Due to the varied nature of repairs, no 
one time frame for turnaround can be guaranteed. However, average turnaround 
time is two weeks from date of receipt. In emergency situations, special 
arrangements can be made by contacting our Repair department. All repaired 
items are warranted for a period of 90 days. Bulk repairs (more than five items) 
will require additional processing time, therefore, please 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 department to obtain an RMA number. Parts returned without 
RMA numbers cannot be accepted. The RMA number must always be clearly 
marked on all boxes and crates and on all shipping documents.

Items under warranty are to be shipped prepaid to Positron and will be returned 
prepaid to the customer. Items that are not under warranty are to be shipped 
prepaid to Positron and will be returned prepaid with freight charges included on 
the invoice. Positron cannot accept items shipped collect. A purchase order 
number is required for all repairs.

To accelerate the repair process, whenever possible, customers should include a 
report detailing the reason for return with the unit(s) being returned. Also, please 
include the name and phone number of a person who can be contacted should our 
Repair department need further information.

When packing items being returned for repair, please ensure that the item(s) is 
properly packed to avoid further damage. Teleline Isolator cards should never be 
shipped while installed in a shelf; this will cause damage and will almost 
invariably extend the repair period.

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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