Nortel Networks DCT1900 manual Cell Link Unit CLU-S -REX-BRD0016 or Rofnb 157 16/2, General

Technical Product Manual - DCT1900

Installation Instructions, Cell Link Unit (CLU-S) –REX-BRD0016 or ROFNB 157 16/2

CHAPTER 8

Cell Link Unit (CLU-S) –REX-BRD0016 or ROFNB 157 16/2

8.1General

The CLU-S is used to control up to 8 Base Stations via twisted pair cables with a maximum length of 1.3 miles.

Maintenance

The CLU-S contains the following field–exchangeable part (see Figure 8–1):

z CLU Firmware, Board Controller - RYSNB 101 19

8.2Board Description

Straps

Not applicable.

Connectors

The CLU has 4 connectors at the front by which the CLCs are connected to the Base Stations and

1 connector for input of the Base Station power:

CLC 1–8	: To connect Base Station 1 to 8.
Base Station Power	: To connect -48 Volts from the MCCB for powering the Base
	Stations.

The power connector does not have a polarity. It makes no difference which pin becomes plus or minus.

LEDs
LED1	Green	: Normally on. Power On LED
LED2	Red	: Normally off. Watch–dog LED
LED3	Red	: Normally off. Board not polled LED
LED4	Red	: Normally off. Base Station in NEW state or board error

Install-DCT1900/R8/mw	8-1
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