NEC nd-20292 manual Section Specifications, Programming Station

ND-20292

CHAPTER 2

APRIL, 1990

Each interface and optional ETU contains a switch Terminal or the RAA-E Unit. The fourth position

(SWl) to protect its circuitry from damage during becomes available when the RAA-E Unit is installed.

insertion and removal while power is applied to the The first two programming positions are system

unit, make it a habit to ensure this switch is OFF. (See attendants and are fixed in system software. Figure 200-l)

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Insertion Guide

Front		Side View
		of Installed
View of
		ETU
Installed
	ON	SW1
SW1
ETU
	1	d
x	OF’F
Figure	200-l SW1 of ETUs

SECTION 220

SPECIFICATIONS

220.1 GENERAL INFORMATION

Prior to configuring a system, first complete the job

specification sheets provided (ND-20234) with the CPU-Et ) ETU, and ensure all types of station equipment, time outs, and feature options are taken into account.

An understanding of the system programming is required to properly complete the job specification forms.

Even though each CCU has eight interface slots and thirty two ports, not all ports are used for installing

station equipment. The hardware requirements will

dictate the availability of ports for installing station equipment.

Twenty five pair cable binders to the MDF should, when possible, pair the same type ETUs together within a cable binder. This will simplify the MDF wiring.

220.2 PROGRAMMING STATION

A maximum of four programming positions can be available in a system. Station equipment connected to the first two ports of the first ESI-E( ) ETU are

automatically set as programming positions and

must be ETE-16D-( ) Multiline TerminaIs. A third programming position can be assigned to any interface port, with an ESI-E( ) ETU and ETE-16D-( ) installed,

by either the first or second programming Multiline

200-2

220.3 ATTENDANT STATIONS

A maximum of four Attendant positions can be

installed in a system. Attendant stations must be ETE-16D-( ) Multiline Terminals that are supported by an ESI-E( ) ETU. The third and fourth Attendant positions can only be assigned to the first ESI-E( ) ETU, ports three and four.

Attendant Multiline Terminals can operate in conjunction with up to two EDE-30-t ) DSS/BLF

Consoles and/or one CO Add-On Module. Each DSS/BLF Console and CO Add-On Module must be supported by an ESI-E( ) ETU. The EDE-30-c ) can be attached to an ETE-16D-( ) and/or another EDE-30-( ), using the metal bracket supplied with each EDE-30-t ) unit.

A maximum of six EDE-30-t > units can be installed per system of which a maximum of four can be assigned as CO Add-On Modules (one per Attendant position). No more than six EDE-30-( ) units, (CO Add-On Module and/or DSS/BLF) can be installed per system.

220.4 DETERMINING EQUIPMENT REQUIRED

1.Station Equipment

Determine the type and the quantity of each station equipment being installed.

Types of station equipment available are as follows:

a.ETE-6-c ) TEL

(6 line Multiline Terminal without LCD).

b.ETE-GD-( )TEL

(6 line Multiline Terminal with LCD).

c.Dkrm Series11 ETE-16-2 TEL (16 line Multiline Terminal).

d.ETE-16D-( )TEL

(16 line Multiline Terminal with LCD).

e.ETE-16K-1 TEL

(16 line Multiline Terminal with directory LCD).

-f. Single Line Telephone without Message Wait Lamp.

g. Single Line Telephone with Message Wait Lamp.

h.EDE-30-t ) DSS/BLF Console.

i.EDE-30-t ) CO Add-On Module.

2. Interface ETUs

Table 200-l shows the recommended quantities of MFR-EA ETUs. The actual quantity, for satisfactory service, will vary depending upon the amount of Single

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