Hardware manual

Electra Elite Issue 8
System Hardware Manual 2 - 15
APR-U Unit
Standard 2500 Set: 500 type network
Nominal Current: 30 mA
Ring Signal: 56 Vac RMS @ 20 Hz
4.5.5 Electra Elite IPK and Series i Terminals and Equipment
The voltage, current, ring signal information for the D
term
Series i Multiline Terminals, Single Line Telephone
equipment, and AP(A)-R/AP(R)-R unit are listed below.
Multiline Terminal (Series i)
Voltage: -11 ~ -48 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
AP(A)-R Unit
Standard 2500 Set: 500 type network
Nominal Current: 30 mA
AP(R)-R Unit
Standard 2500 Set: 500 type network
Nominal Current: 30 mA
Ring Signal: 56 Vac RMS @ 20 Hz