Specifications
| DTMF Dial Signal | 0mile:HF : -6+2dBm LF : -8+2dBm 5mile:HF: >-21dBm LF: >21dBm |
|---|---|
| Handset Function Conform | OREM-A Rule |
| Open Frequency Alternating Resistance | ≧100kΩ |
| Tele-cable Lighting Stroke Test | Max voltage >800V |
| Standard Color | White |
| Standard Voltage | 48VDC |
| Voltage Range | Max 25 mA |
| Installation Location | Domestic/ Elevator |
| Max Operating Channel | 1 |
| Max Operating Distance | 5 km |