6. Technical Parameters
Telephone Parameters
Parameter | Value | Conditions |
Minimum line current | 15 mA | off-hook |
Minimum line voltage | 22 V | on-hook |
Off-hook DC voltage drop | < 8 V< 16 V | I = 25 mA |
Off-hook resistance | >1MΩ | U = 25..100 V |
Off-hook impedance | 220 Ω + 820 Ω paral. 115 nF | 20 to 60 mA |
Return loss | > 14 dB | 20 to 60 mA |
Bandwidth | 300 to 3500 Hz | 20 to 60 mA |
Ringing impedance | > 2 kΩC = 1 μF | 25 to 50 Hz |
Ringing detector sensitivity | 10 to 20 V | 25 to 50 Hz |
Pulse dialling | 40 / 60 ms | |
DTMF dialling level | 6 a 8 dB ± 2 dB | 20 to 60 mA |
Dial-tone detector sensitivity | approx. 43 dB | |
Overvoltage protection- between A, B | 1000 V | 8 / 20 μs |
Notes
- All the product parameters comply with TBR-21 on condition that the product is to be operated as a single line terminal, i.e. no parallel connection with any other equipment is allowed.
- Line interference and noise picked up by the LN microphone are relevant factors.
Other Parameters
Unit type
- 913600E, Central unit – PSTN: 130×175×46 mm
- 913610E, Audio unit – lift cabin, universal: 65×130×20 mm
- 913611E, Audio unit – machine room: 225×87×67 mm
- 913612E, Audio unit – shaft: 225×87×67 mm
- Working temperature range: 0 ÷ 50 ˚C
- Power supply: DC 12V / 0.5A
- Back-up operation time, idle / call: 24 h / 2 h
- Battery: 4 pieces, size AA, NiMH, min 1800 mAh
- Switch rating (913611E, Audio unit – machine room): Up to 48V / 100 mA
The manufacturer reserves the right to modify the product in order to improve its qualities.
The product contains no environmentally harmful components. When the product's service life is exhausted, dispose of it in accordance with applicable legal regulations.