Nortel Networks DCT1900 Modular Cabinet Power Cabling, Modular Cabinet Bdvnb 101 01/3 R2, R3

Technical Product Manual - DCT1900

Installation Instructions, Modular Cabinet – Power Cabling

CHAPTER 19

Modular Cabinet – Power Cabling

19.1 Introduction

This chapter describes the installation of the power cables in two different versions of the Modular Cabinet. The installation depends on the number of external -48Vdc power supplies and on how the Base Stations are powered.

WARNING

Disconnect or switch off all power supply sources before servicing any power

supply circuit.

19.2 Modular Cabinet - BDVNB 101 01/3 (R2, R3)

Fig. 19–1 shows the power distribution in a Modular Cabinet powered by external -48Vdc supplies.

MODULAR					BACKPLANE
CABINET
					X102	48 Vdc	+ 5 V	To
							+ 12 V	System
Terminal			A				* 12 V	Boards
TERMINAL BLOCK
Block A
(SEE	FIG. 19-2)					X112, X113
(see
				TRENB			Piggy-back
External -48Vdc	Mains				or		FASTON
				101 05
	filter			15 A		TRENB		TSRNB
						101 03		101 33
Terminal		B		MCCB		PW-BP	PW1
TERMINAL BLOCK
Block B (see							PW2
(SEE FIG. 19-2)
							PW3
External -48Vdc					F1		PW1
				15 A			PW2	To
							PW7
								CLUs
	PW-EXT				F2
							PW3
				15 A			PW4
							PW5
							PW6

Fig. 19-1 Power Distribution Powered by External -48Vdc

Install-DCT1900/R8/mw	19-1
© 2000-2005