D1.8 General Information M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
For compliance with TS PSTN1 (Singapore):
Programmable Line Output level must be set to ≤ –7dBm.
1.2.4 Radio Levels
From Radio Receiver … 230mV
rms
at input of T803
(for 1kHz tone at 60% full system deviation)
(Note: This input of theT803 is high impedance)
To Radio Transmitter:
From Line-In …–4.4dBm
From Radio Receiver …–4.4dBm
(With receiver level to T803 set to
230mV
rms
)
1.2.5 Tone Remote
Keytone Sensitivity … 29dB less than programmed Line-In
level
Keytone Accept Bandwidth … ±0.75% typical (±16Hz at 2175Hz)
(Speech at –10dBm,
keytone at –30dBm)
Talkoff
(Max. difference between speech and keytone)
2-wire mode … 32dB typical
4-wire mode … 35dB typical
Programmable Guardtone Frequencies … 1950, 2100, 2175, 2325, 2500, 2600,
2800, 2900, 2970, 3000 and 3100Hz
Programmable High Level Guard Tone Duration … 60 to200ms
Function Tone Frequencies … 650Hz to 2050Hz in 100Hz steps
Function Tone Accept Bandwidth … ±24Hz typical
Maximum Number of Function Tones … 2
Programmable Function Tone Duration … 20 to 100ms
1.2.6 Audio Response
Frequency Response … ±1dB 300Hz to 3kHz except at
notch frequency
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