Series I Terminals - NEC UNIVERGE SV8100 System Hardware Manual

Issue No. 1.5
6.6
3 - 22
Single Line Telephone
Nominal Current: 25 mA
Ring Signal: 56 Vac RMS @ 20 Hz
AP(A)-R Unit
Nominal Current: 30 mA
AP(R)-R Unit
Nominal Current: 30 mA
Ring Signal: 56 Vac RMS @ 20 Hz
6.5.5

Series i Terminals

The voltage and current for the D
are listed below:
Voltage: -11 ~ -48 Vdc
Maximum Current: 250 mA
Acoustical characteristics meet Electronic Industry
Association (EIA) standard proposal SP-1286 and
standard EIA RS-470.
Voltage, current, and ring signal information for Single Line
Telephone equipment, AP(A)-R Unit, and AP(R)-R Unit are the
same a those listed in the previous paragraph.
Dialing Specifications
6.6.1 Dial Pulse Address Signaling
Dial Pulse Address Signaling uses dial pulses (regular momentary
interruptions) to signal the equipment. The following Dial Pulse
specifications are used In the SV8300 system.
Pulse Rate: 10 ± 0.5 pps/20 ± 1.0 pps
Percent Break: 60 ± 1.5%
Interdigit Interval: 0 pps/20 pps 770 ms. ~ 830 ms.
6.6.2 Dual-Tone Multifrequency (DTMF) Address Signaling
DTMF signaling includes push button or Touchtone dialing. When a
key on a telephone is pushed, two tones (one high frequency and one
low frequency) are provided. In the SV8300 system, the following
DTMF specifications are used.
Frequencies
Two sinusoidal frequencies are provided, one from the high
frequency group and one from the low frequency group.
UNIVERGE SV8100/SV8300
term
Series i multiline terminals
SV8300 System Specifications