Hardware manual

Electra Elite Issue 8
System Hardware Manual 3 - 7
7.2.2 Determining the Number of Required Interface ETUs
Table 3-1 Number of Required Interface ETUs lists each
feature and the associated hardware necessary for the
operation of the feature.
Table 3-1 Number of Required Interface ETUs
7.2.3 PBR Requirements
The Electra Elite 192 system has four built-in Push Button
Receiver (PBR) circuits on the CPUB( )-U( ) ETU. The
PBR circuit detects and translates DTMF tones generated
by Single Line Telephones, facsimile machines, modems,
or analog voice mail ports. Incoming DTMF signals can
also be detected from a CO trunk using the DISA feature.
The system Auto Attendant feature and DISA feature
must use the CPUB( )-U( ) ETU PBR circuits.
An optional PBR( )-U( ) ETU that provides an additional
four circuits can be installed. The number of PBR( )-U( )
ETUs needed depends on the number of Single Line
Telephones, facsimile machines, modems, and analog
voice mail ports needed. Automated Attendant and DISA
trunks connected to the system must also be considered.
When the optional PBR( )-U( ) ETU is installed, these
PBR circuits can be used only for SLI ports connected to
the system.
Feature
Required
ETU
Required
Feature Key
Maximum
ETUs per
System
ANI/Caller ID MIFM-U( ) KMM(1.0)U 1
Automatic Call Distribution MIFA-U( ) KMA(1.0)U 1
ACD Plus Automatic Call
Distribution
MIFM-U( ) None
Least Cost Routing MIFM-U( ) KMM(1.0)U 1
PC Programming MIFM-U( ) None 1
SMDR MIFM-U( ) None 1
Uniform Call Distribution MIFA-U( ) None 1
Wireless Service Console (WSC) MIFM-U( ) None 1
The Caller ID feature works without the MIFM-U( ) ETU. However, the
Caller ID scrolling and dialing both require the MIFM-U( ) ETU with
KMM(1.0)U attached.
An MIFM-U( ) ETU is required during installation and servicing