Dialing Specifications; Dial Pulse Address Signaling; Dual-Tone Multifrequency (Dtmf) Address Signaling - NEC Univerge SV9100 Hardware Manual

Issue 1.2
5.6
2 - 24
Clock: 266 MHz

Interface Blade: 8- or 16-bit microprocessor

Optional Blades: 16- or 32-bit microprocessor

Multiline Terminal (TDM): 8-bit microprocessor

Multiline Terminal (IP): 32-bit microprocessor

IP Adapter: 32-bit microprocessor

Attendant Console: 4-bit microprocessor

SLT Adapter: 4-bit microprocessor


Dialing Specifications

5.6.1

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 UNIVERGE SV9100 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.

5.6.2

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 UNIVERGE SV9100 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.
Frequency Deviation: Less than ±1.5%

Signal Level:

Nominal level per frequency: -6 ~ -4 dBm
Minimum level per frequency
Low Group: -10 dBm
High Group: -8 dBm
Maximum level per frequency: 0 dBm
Rise Time: Within 5 ms.

Duration of Dual Frequency Signal:

110 ms. default/60 ms. minimum
UNIVERGE SV9100
SV9100 System Specifications