Hardware manual

Issue 8 Electra Elite
2 - 14 System Specifications
TDM Data Bus: 8 bit
TDM Timeframe: 125 µs.
4.5.3 Control
This section indicates the speed or capacity.
Control: Stored program with distributed processing
Central Processor: 32-bit microprocessor
Clock: 16.384 MHz
Interface ETU: 8-bit or 16-bit microprocessor
Optional ETUs: 16- or 32-bit microprocessor
Multiline Terminal: 8-bit microprocessor
Attendant Console: 4-bit microprocessor
SLT Adapter: 4-bit microprocessor
4.5.4 Electra Elite Terminals and Equipment
The voltage, current, ring signal information for the Elite
Multiline Terminals, Single Line Telephone equipment,
and APA-U/APR-U Unit are listed below.
Multiline Terminal
Voltage: -11 ~ -26 Vdc
Maximum Current: 250 mA
Acoustical characteristics meet Electronic Industry
Association (EIA) standard proposal SP-1286 and
standard EIA RS-470.
Single Line Telephone
Standard 2500 Set: 500 type network
Nominal Current: 35 mA
Ring Signal: 56 Vac RMS @ 20 Hz
SLT(1)-U( ) ADP
Standard 2500 Set: 500 type network
Nominal Current: 30 mA
Ring Signal: 56 Vac RMS @ 20 Hz
APA-U Unit
Standard 2500 Set: 500 type network
Nominal Current: 30 mA