Allied Telesis AT-CV5000 manual 256

Chapter 2: Installation

A CVFAN-AT

A

	WARNING	FOR CENTRALIZED DC POWER
	This unit might have more than one power input. To
40-60VDC	reduce the risk of electric shock, disconnect all power	CONNECTION, INSTALL ONLY IN
	inputs before servicing unit.	A RESTRICTED AREA.
	AT-PWR15
	POWER
	FAULT

e
power		input.
isco			To
	nnect all
			power
W

	B		B
WARNING	FOR CENTRALIZED DC POWER		AT
This unit might have more than one power input. To
reduce the risk of electric shock, disconnect all power	CONNECTION, INSTALL ONLY IN	40-60VDC	-
inputs before servicing unit.	A RESTRICTED AREA.		CVFAN
AT-PWR15
POWER
FAULT

256

PWR B

FOR		CEN
CO
	NNE		C
A R
	ESTR			R
			A	IN

Figure 43. 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).

Warning: Check to see if there are any exposed copper strands coming from the installed wires. When this installation is done correctly there should be no exposed copper wire strands extending from the terminal block. Any exposed wiring can con- duct harmful levels of electricity to persons touching the wires.

E12

8.Secure the tray cable near the rack framework using multiple cable ties to minimize the chance of the connections being disturbed by casual contact with the wiring. Use at least four cable ties, separated four inches apart. Locate the first one within six inches of the terminal block.

This system will work with a positive grounded or negative grounded DC system.  E13

9.Ensure that the circuit breaker is in the OFF position.

10.Connect the supply-cable wires to the circuit breaker.

11.Energize the circuit breaker.

12.Turn the power switch to the ON position.

If you installed an optional redundant power supply, repeat this procedure to attach DC wires to the second terminal block.

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