System Performance - NEC SOPHO 2000 IPS User Manual

8 System performance

8.1 Transmission Characteristics
Cross Talk Attenuation
Idle Circuit Noise
Insertion Loss
(relative to 1KHz-10 dBm)
Longitudinal Balance
Trunk Side
PCM Characteristics
Return Loss
Line Impedance
Leakage Resistance
8.2 Tone Plans
Within the 2000 IPS SW R6.2 the tone plans for the European markets have been defined.
8.2.1 Rotary Dial Pulse and DTMF Signaling
(1) Rotary Dial Signal
Description
Dial Speed
Break Ratio
Inter -Digit Pause
Switch-Hook Flash
Detection
(2) DTMF Signaling
Description
Signal Code
Frequency
Deviation
Signal Duration
Inter -Digit Pause Min. 40 msec.
Signal Level
UNIVERGE NEAX 2000 IPS General Description
Issue 5
Transmission Characteristics
More than 70 dB at 1000 Hz
Less than -65 dBm
Station- to-Station - Typical 6 dB
Station- to-Trunk - Typical 0.5 dB
Trunk- to-Trunk - Typical 0.5 dB at 0 dB PAD control
Better than 58 dB
EMEA: Line Rate 2 Mbps, A-Law
USA: Line Rate 1.544 Mbps, µ-Law, TI- 04
Standards
More than 15 dB (300 ~ 3,400 Hz)
Station: 600 Ω
Trunk: 600 or 900 Ω
More than 20,000 Ω
Receiving
9 to 22 pps
55 to 77 %
Min. 256 msec.
384 to 2,300 msec.
Receiving
High Frequency Group
Low Frequency Group
+/- 1.8 %
Min. 40 msec.
-46 to -5 dBm
Specifications
10 pps +/- 0.8pps
20 pps +/- 0.8 pps
67 +/- 3% or 62 +/- 3%
300 to 1,000 msec.(10 pps)
Not applicable
Specifications
Sending
1,209Hz
697Hz 1
770Hz 4
852Hz 7
*
941Hz
+/- 0.8 %
64 or 128 milli-sec.
32 to 240 msec.
-10 dBm (low group)
- 8 dBm (high group)
CHAPTER 3 TERMINALS
Sending
1,336Hz 1,477Hz
2 3
5 6
8 9
0 #
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