Control; Telephone - NEC Electra Elite 192 Hardware Manual

Electra Elite
System Hardware Manual
TDM Data Bus:
¥
TDM Timeframe: 125 µs.
¥
4.5.3

Control

This section indicates the speed or capacity.
Control: Stored program with distributed processing
¥
Central Processor:
¥
Clock:
¥
Interface ETU:
¥
Optional ETUs:
¥
Multiline Terminal:
¥
Attendant Console:
¥
SLT Adapter:
¥
4.5.4

Telephone

The voltage, current, ring signal information for the
Electra Elite Multiline Terminals, Single Line Telephone
equipment, and APA/APR units are listed below.
Multiline Terminal
¥
Voltage:
Maximum Current:
Acoustical characteristics meet Electronic Industry

Association (EIA) standard proposal SP-1286 and
standard EIA RS-470.
Single Line Telephone
¥
Standard 2500 Set:
Nominal Current:
Ring Signal:
SLT(1)-U10 ADP
¥
Standard 2500 Set:
Nominal Current:
Ring Signal:
APA-U Unit
¥
Standard 2500 Set:
Nominal Current:
8 bit
32-bit microprocessor
16.384 MHz
8-bit or 16-bit microprocessor
16- or 32-bit microprocessor
8-bit microprocessor
4-bit microprocessor
4-bit microprocessor
-11 ~ -26 Vdc
250 mA
500 type network
35 mA
56 Vac RMS @ 20 Hz
500 type network
30 mA
56 Vac RMS @ 20 Hz
500 type network
30 mA
Issue 6
2 - 11