Electra Elite
Issue 6
System Hardware Manual
2 - 13
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
4.6
Dialing Specifications
4.6.1
Dial Pulse Address Signaling
Dial Pulse Address Signaling uses dial pulses to signal
the equipment. In the Electra Elite 48 system, the
following Dial Pulse specifications are used.
Pulse Rate:
10 ± 0.5 pps/20 ± 1.0 pps
Percent Break:
60 ± 1.5%
Interdigit Interval:
10 pps/20 pps 770 ~ 830 ms.
4.6.2
Dual-Tone Multifrequency (DTMF) Address Signaling
DTMF signaling describes 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 Electra Elite 48 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 ±1.0%
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.
Содержание ElectraElite 48
Страница 2: ...SYSTEM HARDWARE MANUAL Stock Number 750376 Issue 6 Series 8000 48 ...
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Страница 56: ...1st Tab Chapter 1 Introduction ...
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Страница 78: ...2nd Tab Chapter 2 System Specifications ...
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Страница 102: ...3rd Tab Chapter 3 Hardware Requirements ...
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Страница 110: ...4th Tab Chapter 4 Installing the KSU ...
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Страница 136: ...5th Tab Chapter 5 Installing Electronic Telephone Units ...
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Страница 256: ...6th Tab Chapter 6 Installing Electra Elite Multiline Terminals ...
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Страница 290: ...7th Tab Chapter 7 Installing Optional Equipment ...
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Страница 344: ...8th Tab Chapter 8 Installing Dterm Series i Equipment ...
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Страница 358: ...Electra Elite Issue 6 System Hardware Manual 8 13 Figure 8 15 Removing the Line Panel ...
Страница 363: ...Issue 6 Electra Elite 8 18 Installing Electra Elite IPK and Dterm Series i Equipment Figure 8 21 Installing Base Cover ...
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Страница 434: ...SYSTEM HARDWARE MANUAL NEC America Inc Issue 6 Series 8000 48 ...
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