YDV4202-V1
Power Unit
1. Warning
- Don’t dismantle or alter the unit. Fire or electric shock could result.
- The unit must be installed and wired by a qualified technician.
- Do not connect any non specified power source to the N, L terminals, Fire, damage to
the unit, or system malfunciont can result.
- Keep the unit away from water or any other liquid, risk of fire or electric shock.
2. Introduction:
The power unit is designed for two wire systems. It supplies power to the outdoor station,
indoor monitor and other accessories. The features are as follow:
• Uni
versal AC input/full range
•
Multi protection: short circuit, overload, over voltage
•
Cooling by free air convection
• DIN
rail mounting
90mm
m
m0
6
140mm
3. Terminal Description:
N N
L SW
LED
PA P- P+
CN1
BUS(IM) BUS(DS)
CN2
N: AC input.
L: AC input.
SW: Switch terminal.
LED: Power indicator,always on when plug in power.
CN2: PA and P+ terminal should be short-circuited.
CN1: Bus control terminal.
BUS(IM): Indoor monitor conne ction terminal.
BUS(DS): Door station conne ction terminal.
* Press on both
sides of the cover
and lift to remove
