6. Technical Parameters
Electric Parameters
Parameter | Value | Conditions |
Minimum line current | 15 mA | off-hook |
Minimum line voltage | 22 V | on-hook |
Off-hook DC voltage drop | < 9 V < 12 V | I = 20 mA |
On-hook resistance | >1 MΩ | U = 25..100 V |
Off-hook impedance | 220 Ω + 820 Ω paral. 115 nF | 15 to 60 mA |
Return loss | > 14 dB | 15 to 60 mA |
Bandwidth | 300 to 3500 Hz | 15 to 60 mA |
Ringing impedance | > 2 kΩC = 0.47 μF | 25 to 50 Hz |
Ringing detector sensitivity | 10 to 20 V | 25 to 50 Hz |
Pulse dialling | 40 / 60 ms | |
DTMF dialling level | -9.0 +2.0/-2.5 dB and -11.0 dB +2.5/-2.0 dB | 15 to 60 mA |
Overvoltage protection – between A, B | 1000 V | 8 / 20 μs |
Notes:
1) Any ringing course is accepted.
Switch Parameters
- Minimum voltage: 9 V AC / DC
- Maximum voltage: 24 V AC / DC
- Maximum current: 1 A AC / DC
- Resistance – open: min. 400 kΩ
- Resistance – closed: approx. 0.5 Ω
- Fuse: resettable
Connection of External Indicators
- Supply voltage: 12–24 V DC, external power supply
- Maximum switched current: 200 mA
Other Parameters
- Universal model dimensions: 65 x 130 x 24 mm
- Compact model dimensions: 100 x 185 x 16 mm
- Working temperature range: -20 to +70 ˚C