Technical Specifications - Telecom Behnke a Serie Manuel

Manual Door intercom devices a / b series 20 / 30 / 40 / 50 / 20-0028A/-0028B
GB GB

Technical Specifications

technical specifications
9.
Connection type:
Power supply:
Coil tension:
Coil current:
Additional power supply:
Terminal:
Recognised caller signal:
Recognised busy signal:
Recognised busy signal interval: Signal tones for 160-700 ms or pauses for 160-700 ms respectively
Permitted cable length:
Dialling methods:
Built-in relays:
Relay switch power:
Additional power supplies
on MLMs:
Memory:
IP protection class:
Operating temperature:
Tested according to:
90
analogue telephone line, a / b port
via the a / b port
20-70 VDC
20-60 mA
12-15 V= potential-free
Behnke power supply unit or any other additional power supply
in connection with a Behnke DC-DC converter; one Behnke door
intercom device per power supply unit
ZR according to TBR 21
cannot be specified exactly, as it depends on the signal's
amplitude, frequency and interval
400-450 Hz sinus
max. 10 m each (for MLM A, +MLM B, +MLM C, LS, MIC, T1, and T2)
or max. 25 m each (for LS, MIC, T1, and T2, if no other MLM is con-
nected)
DTMF dialling, 50/50 ms (tone/pause)
2 pcs. (2 switch relays)
max. 60 VA/24 W: 0,5A, 120V~ or 1A, 24V =(resistive load)
max. current draw 30 mA per MLM
EEprom, non-volatile
54
-20 °C to +50 °C
TBR 21 as well as EC 201 121 (EU-wide network access) EN 55022,
EN 55024 (Electromagnetic
Compatibility)
EN 60950 (Product Safety)
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