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Powering On a DC Powered Chassis

This section describes how to power on a DC powered AT-CV5000 chassis. 

Warning

As a safety precaution, a 15 Amp circuit breaker should be installed at 
the supply end of the cable to be used with this LAN equipment.

ALWAYS

 connect the wiring to the LAN equipment first before 

connecting the wiring to the breaker. To avoid the danger of physical 
injury from electrical shock, do not work with HOT feeds. Always be 
sure that the breaker is in the OFF position before connecting the wiring 
to the breaker.

Note

A tray cable is required to connect the power source if the chassis is 
powered by centralized DC power. The tray cable must be an UL listed 
Type TC tray cable and rated at 600 V and 90 degree C, with three 
conductors, minimum 14 AWG.

1. Make sure that the ON/OFF power switch is in the OFF position.

2. Locate the two DC terminal blocks, labeled A and B, on the rear panel of 

the chassis. 

3. Starting from the left side of a terminal block, identify the 

positive

power 

supply ground

 and 

negative

 terminals using the symbols below the 

terminal block in Figure 6.

Figure 6.  DC Terminal Block

4. With a 14-gauge wire-stripping tool, strip the three wires in the tray cable 

coming from the DC input power source to 8mm 

±

 1mm (0.31 in., 

±

 0.039 

in.), as shown in Figure 7.

250

40-60VDC      

Warning

Do not strip more than the recommended amount of wire. Stripping 
more than the recommended amount can create a safety hazard by 
leaving exposed wire on the terminal block after installation. 

Figure 7.  Stripped Wire

5. Connect the power supply ground wire into the middle of the three 

terminals; this is the terminal marked with the ground symbol. Inserting the 
wire into the terminal and tightening the connection with a flathead 
screwdriver, as shown in Figure 8.

Warning

When installing this equipment, always ensure that the power supply 
ground connection is installed first and disconnected last.

Figure 8.  Inserting Wires into a DC Terminal Block

6. Connect the +48 VDC (RTN) feed wire to the terminal block marked 

+ (plus).

7. Connect the -48 VDC feed wire to the terminal block marked - (minus).

8mm ±1mm

(0.31in. ±0.039 in.)

B

WR15

e pow

er inpu

t. To 

isconn

ect all po

wer 

FOR CENTRA

LIZED DC PO

WER 

CONNECTION

, INST

ALL O

NLY IN 

A RESTRICTE

D AREA.

POWER

FAULT

AT-PWR15

A

B

AT-CVFAN

A

AT-CVFAN

B

AT-PWR15

POWER

FAULT

40-60VDC      

WARNING

 

This unit might have more than one power input. To 
reduce the risk of electric shock, disconnect all power 
inputs before servicing unit.

FOR CENTRALIZED DC POWER 
CONNECTION, INSTALL ONLY IN 
A RESTRICTED AREA.

40-60VDC      

WARNING

 

This unit might have more than one power input. To 
reduce the risk of electric shock, disconnect all power 
inputs before servicing unit.

FOR CENTRALIZED DC POWER 
CONNECTION, INSTALL ONLY IN 
A RESTRICTED AREA.

256

Technical Specifications

Physical and Environmental

Dimensions (H x W x L)

3.67 cm x 10.1 cm x 17.1 cm
(1.45 in x 3.97 in x 6.73 in)

Weight

1.75 lbs

Operating Temperature

0° C to 40° C (32° F to 104° F)

Storage Temperature

-25° C to 70° C (-13° F to 158° F) 

Operating Relative Humidity

5% to 90% RH (non-condensing)

Storage Relative Humidity

5% to 95% RH (non-condensing)

Operating Altitude Range

Up to 3,000 m (9,843 ft)

Electrical Ratings

DC Input Current:

40 to 60 VDC (6.0 A)

Nominal Input Frequency:

47-63 Hz 

Electrical Safety and Emission Statement

Standards

: This product meets the following standards when installed in compliant host equipment.

Emission

FCC Class A, EN55022 Class A, VCCI Class A, C-TICK, CE

WARNING

In a domestic environment this product may cause radio interference in which case the 

user may be required to take adequate measures. 

Immunity

EN55024

Electrical Safety

UL60950-1 (

c

UL

us

), EN60950 (TUV), CAN/CSA C22.2 No. 60950-1-03

Copyright 

©

 2005 Allied Telesyn, Inc. All rights reserved. 

No part of this publication may be reproduced without prior written permission from Allied Telesyn Inc.

U.S. Federal Communications Commission 

RADIATED ENERGY

Note: This equipment has been tested and found to comply with the limits for a Class A digital device pursuant 

to Part 15 of FCC Rules. These limits are designed to provide reasonable protection against harmful 

interference when the equipment is operated in a commercial environment. This equipment generates, uses, 

and can radiate radio frequency energy and, if not installed and used in accordance with this instruction 

manual, may cause harmful interference to radio communications. Operation of this equipment in a residential 

area is likely to cause harmful interference in which case the user will be required to correct the interference at 

his own expense.

Note: Modifications or changes not expressly approved of by the manufacturer or the FCC, can void your right 

to operate this equipment.

Industry Canada

This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment 

Regulations.

Cet appareil numérique de la classe A respecte toutes les exigences du Règlement sur le matériel brouilleur 

du Canada.

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