Philips D721 - Manual (Page 80)

7.2 Technical data
ISDN
telephone
Connection: Euro ISDN point-to-multipoint connection
Dimensions: 162 x 80 x 206 mm (W x H x D)
Weight: approximately 700 g
For connection to telecommunications systems with an internal S0 bus.
Analog port
Dialling method: Dual tone multifrequency (DTMF)
Pulse dialling
– Functions with * and # are not available
when using pulse dialling
R key: Flash (50 ms … 350 ms)
Ringing voltage: 32 Vrms / 25 Hz to 0.85 µF + 1,800 Ohm
(Z > 7,700 Ohm)
Supply voltage:
≥
16 V
Supply voltage:
≥
20 mA to max. 540 Ohm
Technical modifications reserved
7.3 Cleaning and care
Simply wipe your telephone with a slightly damp cloth or with an anti-static
cloth; never use a completely dry cloth.
Please avoid the use of cleaning and scouring agents.
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