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Electra Elite
Issue 6
System Hardware Manual
5 - 7
S
ECTION
3
C
OMMON
C
ONTROL
U
NITS
The Electronic Telephone units described in this section control the
common functions of the KSU.
3.1
CPUB( )-U10 ETU
3.1.1
Description
The CPUB( )-U10 ETU is the Central Processing Unit for
the system. This ETU has a Central Processing Unit and
a Microprocessing Unit and supports a maximum of 192
ports for the Electra Elite system.
A 32-bit microprocessor executes the programs stored on
the Flash ROM ICs of the MPU unit. This controls the
entire system when data is transferred to and from other
ETUs.
This ETU provides the following items:
Time Division Switch (TDSW)
Static Random Access Memory (SRAM)
32-bit Processor
4-channel DTMF Receiver (PBR)
Sixteen 4-party Conference Circuits
Internal (digital music) Music-on-Hold source
External Music-on-Hold input (also used for station
background music)
Flash ROM
Call Progress and DTMF Tone Generator
Memory Backup Battery (Retains memory for
approximately 21 days)
Key Function (KF)/Multifunction (MF) Registration
Summary of Contents for Electra Elite 192
Page 2: ...SYSTEM HARDWARE MANUAL Stock Number 750363 Issue 6 Series 6000 192 ...
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Page 10: ...Regulatory Information ...
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Page 52: ...Issue 6 Electra Elite xxxii List of Tables THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 73: ...Electra Elite Issue 6 System Hardware Manual 1 21 THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 74: ...Issue 6 Electra Elite 1 22 Introduction ...
Page 96: ...Issue 6 Electra Elite 2 22 System Specifications ...
Page 104: ...Issue 6 Electra Elite 3 8 Hardware Requirements THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 213: ...Electra Elite Issue 6 System Hardware Manual 5 67 Figure 5 39 FMS 8 U10 ETU ...
Page 336: ...Issue 6 Electra Elite 7 54 Installing Optional Equipment THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 368: ...Issue 6 Electra Elite A 4 Glossary of Abbreviations THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 369: ...SYSTEM HARDWARE MANUAL NEC America Inc Issue 6 Series 6000 192 ...