ADTRAN D4PBCU0 User Manual

PRACTICES

C A U T I O N !

SUBJECT TO ELECTROSTATIC DAMAGE

OR DECREASE IN RELIABILITY.

HANDLING PRECAUTIONS REQUIRED.

MODEL ACT PSU

ADV ANCED COMMUNICA TIONS TERMINAL

POWER SUPPLY UNIT

INST ALLATION/MAINTENANCE

CONTENTS

1. GENERAL .....................................................................1

2. INSTALLATION ............................................................1

3. CONNECTIONS ............................................................2

4. FACEPLATE INDICATORS .........................................2

5. MAINTENANCE ............................................................2

6. WARRANTY AND CUSTOMER SERVICE ..................2

FIGURES

Figure 1. ADTRAN ACT PSU ...........................................1

Figure 2. Connector Pin Assignments...........................2

Section 61150.052L1-5, Issue 1

Section 61150052L1-5

Issue 1, July 1995

CLEI Code # D4PBCU0_ _ _

TABLES

Table A. Basic Features .................................................1

Table B. ACT PSU Specifications..................................2

Table C. Faceplate Indicators ........................................2

1. GENERAL

1.1 This practice provides installation and mainte-

nance information for the ADTRAN Advanced Communications Terminal Power Supply Unit (ACT PSU). Figure 1 is a drawing of the unit. A detailed product description and specifications can be found in the ADTRAN ACT PSU Description Practice, Section 61150052L1-2. The part number and basic features for the unit are provided in Table A. The specifications for the ACT PSU are shown in Table B.

1.2 Revisions to this practice will be summarized in this paragraph.

1.3 The ADTRAN ACT PSU is a common module plug-in used in the ACT 2300, 1900, and 1950 channel banks. The unit converts the -48 VDC input to +5 VDC, +12 VDC, and -12 VDC output voltage levels to be used by other common equipment and channel units. The unit is also designed to operate in a parallel, redundant fashion for increased system reliability.

Figure 1. ADTRAN ACT PSU

2. INSTALLATION

2.1 Inspect the unit for shipping damage immediately

after unpacking it. If damage is discovered, file a claim immediately with the carrier; then contact ADTRAN Customer Service (see subsection 6.2).

2.2 The ACT PSU plugs directly into the common card area in the positions marked POWER SUPPLY A or POWER SUPPLY B. To install the ACT PSU, grasp the unit by the faceplate and push it firmly into the backplane connector until the unit is seated. Lock the unit in position using the two faceplate screws.

2.3 There are no adjustments or options for the ACT PSU.

Table A. Basic Features

Unit

ACT PSU

Part No.

1150052L1

Features

Fuses incoming -48 V and 20 Hz ringing voltage. Converts -48 VDC to regulated +5 VDC, +12 VDC, and -12 VDC. Outputs individually diode isolated to allow redundant operation. Front panel test points for all voltages. Front panel indicators showing the status of the unit. Filters -48 V to provide -48 F for the rest of the system.

61150.052L1-5A

Page 1

Section 61150.052L1-5, Issue 1

Table B. ACT PSU Specifications

Input

DC Voltage Current Ringing Voltage Current

Output

+5 V

+12 V

-12 V

-48 V filtered

20 Hz

3. CONNECTIONS

3.1 Figure 2 shows the ACT PSU connector pin

assignments. All inputs and outputs to the ACT PSU are made through the backplane. No additional backplane wiring is necessary for normal operation.

MAD0 MAD1 MAD2

20 Hz FUSED RET

20 Hz IN RET

GND GND

- 12 V

+ 12 V

GND

GND + 5 V + 5 V

- 48 FRT

- 48 VRT

- 48 IN RT

- 48 IN RT FRM GND

-42.25 VDC to -56.00 VDC,

-48 VDC, nominal

3.0 A 0 Vrms to 120 Vrms

105 Vrms, nominal

0.25 A +5 VDC ± 5%

4 A, maximum +12 VDC ± 10%

1 A, maximum

-12 VDC ± 10% 1 A, maximum

-42.25 V to -56.00 V 2 A, maximum

0 to 120 Vrms 105 V, nominal

0.25 A, maximum

28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54

TPSS

TSPV

RSPV

PFAIL

5 6 7

20 Hz FUSED

20 Hz IN

GND

- 12 V

+ 12 V

GND

+ 5 V

- 48 F

- 48 V

- 48 V IN

FRM GND

25 26 27

4. FACEPLATE INDICATORS

Table C shows the status indicators for incoming

power, ringing voltage, and outgoing voltages.

Table C. Faceplate Indicators

Indicator

PWR ON, 20 HZ ON

PWR FAIL

Indicator turns power or ringing voltage is present.

Indicator turns On whenever one of the outgoing voltages of the individual PSU has failed.

5. MAINTENANCE

5.1 The ACT PSU requires no routine maintenance

to operate properly.

The faceplate has two faceplate fuses. If a fuse blows, a colored pin becomes visible from the front of the channel bank. To remove a fuse, grasp it and firmly pull it from the holder. To insert a fuse, push it into the holder until it firmly seats.

5.2 ADTRAN does not recommend that repairs be performed in the field. Repair services may be obtained by returning the defective unit to the ADTRAN Repair Department (see subsection 6.2).

6. WARRANTY AND CUSTOMER SERVICE

ADTRAN will replace or repair this product within five years from the date of shipment, if the product does not meet its published specifications or if it fails while in service. For detailed warranty, repair, and return information, refer to the ADTRAN Equipment Warranty and Return Policy Procedure.

6.1 Return Material Authorization (RMA) is required prior to returning equipment to ADTRAN.

6.2 For service, RMA requests, or further information, contact one of the following numbers.

ADTRAN Customer Service:

RMA (205) 971-8722

Technical Support (800) 726-8663

Applications Engineering (800) 615-1176

Sales (800) 827-0807

Repair and Return Address:

ADTRAN, Inc.

Customer Service Department

901 Explorer Boulevard

Huntsville, Alabama 35806-2807

Description

whenever incoming

Figure 2. Connector Pin Assignments

Page 2

901 Explorer Boulevard • Huntsville, Alabama • 35806-2807 • (205) 971-8000 • FAX (205) 971-8699