BEL 1 to 1 DC door phone
BP121
Description:
This package consist of 1 door unit and 1 room unit).
Door unit is typically installed near the door. Room
unit is typically installed inside a secured room.
BEL DC series operates on DC power supply (battery).
Carefully optimized and efficient circuit design allow
further power savings and longer battery life time. BP121
offer more convenient in installation as it does not
requires any AC power supply wiring. 3-in-1 features:
Interphone, door bell and door opener.
How to use:
Visitor press button on door unit to ring room unit
inside (2 chime tone). Tenant pick up handset on room unit and talk to
visitor. Upon confirming visitor identity, just press
the button on room unit to open door. Volume can be adjusted
using a knob on room unit.
Specification:
|
Parameter |
Description |
| Power source |
4 pcs x 1.5V (AA size battery) |
| Power consumption |
Idling: 30mA.
Chime signal: 150mA. |
| Effective wiring distance |
300m using 0.65mm copper wire |
| Dimension (cm) |
Room station: 25(D) x 8(W) x
4.5(H) cm
Door station: 12.5(D) x 10(W) x 3(H) cm |
| Packaging dimension (cm) |
32 x 21 x 5.5 cm |
| Weight (g) |
0.8 kg |
| Wiring |
2 wire from room unit to door
unit.
2 wire from room unit to electric lock. |
