MEDC Weatherproof FernTel - Manual (Page 25)

25
Technical Data
Connection data
Supply voltage 24….66 Vdc
Supply current 19…100 mA
Ringing alternating current 30….90 Vac
Ringing frequency 16….68 Hz
Ringer input impedance ≥ 6.0 k Ω at 25 Hz
≥ 3.5 k Ω at 50 Hz
Enquiry key (flash) only for DTMF 80 ms, 120 ms, 600 ms
Dialling mode
DTMF Frequencies according to ITU-T Q.23
Tone duration unlimited or 90 ms
PD Pulse/Pause ratio
1.5:1 (60/40 ms) or
2:1 (66.7/33.3 ms)
Ringing volume max. approx. 95 dB(A) at 1 m distance
Housing 293 x 191 x 128 mm
(Height x Width x Depth)
Weight approx. 2.300 g
(telephone incl. telephone mount)
Display 2 lines, 16 positions per row, 7x 5 matrix
Pictograms
Operating utilization position Table or vertical wall mounting
Handset
Mouthpiece Electret-foil microphone
Receiver inset dynamic receiver inset with magnetic field generator
Connections Single- or multiwired up to 2.5 mm 2
Labelling
Power cable TCP/La – TCP/Lb (TCP : Terminal Connection Point)
Secondary sounder W / W1
Environmental conditions
Ambient operating temp. -25°C...+60°C
(Below -20°C there is no readout on the display)
Transport and storage temp. -25°C...+70°C
Degree of protection
acc. to IEC60529
IP65
Protection against external
mechanical stress
Degree of protection IK08 according to EN50102