Technical Information - Benefon SIGMA GOLD TDP-52-SN3 Service Manual

When the dialling tone is heard, there is approx. 30 s. time to start dialling the num-
ber.
The number may also be dialled from the handportable keyboard.
9.1.2.2 Answering a call with the tele-device.
A call is answered normally by lifting the tele-device handset or allowing the device
to answer automatically.
If the call has been answered by the handportable , it can be transferred to the tele-
device as follows: Lift the tele-device handset (or press ON LINE from the telefax),
and press the handportable HF key.
9.1.2.3 Terminating a call.
The call is terminated normally by returning the handset to its cradle.
The call may also be terminated by pressing the lightning key on the handportable.
The busy signal will then be heard from the tele-device handset. Do not forget to
replace the tele-device handset, as the line interface uses power from the handport-
able battery.
9.1.2.4 Making and receiving a call with the hand-phone
A call can be made and received normally from the handportable as long as the tele-
device handset has not been lifted.

9.1.3 Technical information

The line interface only consumes power when the tele-device handset is lifted.
The phone battery can be charged and the line interface used simultaneously by
connecting the charger and line interface to the handportable through a branching
unit.
Performance values:
Current consumption
Line current
Line impedance
Dialling/busy tone
Frequency range
Ring voltage
Xo0245e4_fm5.fm
Product: LIF-40 (Line Interface) /
27.1.1999
200 mA
25 mA
860 ohm / 39 nF
400 Hz
300...3400 Hz ± 1 dB
60 VAC
YO0245
3