NEC ND-71762(E) system manual Pbx

INSTALLATION PROCEDURE

Figure 4-10 Cable Connection Diagram for Receiving Clock from a Digital Interface (TSW)

Cable Connection Diagram

Perform the following wirings at the MDF. The following connection diagram shows an example where the Digital Trunk POUT leads are used as the 1st clock distribution route.

PBX

maximum 200 meters (660feet) (24AWG)

Digital

Interface

TSW

PLO

LT Connector

Installation Cable

maximum100

meters(330 feet) (24AWG)

Installation Cable

RA

RB

TA

TB

POUTA

POUTB

DIU0A0

MDF

PCM Cable(2P)

Note 1

PCM

Carrier

Equipment/

DSU

to other node

CLK

PLO

#1

DIU0B0

DIU1A0

BASEU

for PLO #0	#2
	#3
	#4
	#1
for PLO #1	#2
	#3
	#4

DIU1B0

DIU2A0

DIU2B0

DIU3A0

DIU3B0

DIU0A1

DIU0B1

DIU1A1

DIU1B1

DIU2A1

DIU2B1

DIU3A1

DIU3B1

Note 2

Note 1: PLO has a maximum of 4 inputs. DIU0xx leads are used for the 1st clock distribution routs. Thus, DIU3xx leads are used for the 4th. The first input has the highest priority.

Note 2: This connection is required for a dual-TSW system.

ND-71762 (E)CHAPTER 4

Page 41

Issue 2