intercom system

Functions:

Transmission in buses
LCD display
Inner switched-power, battery standby
Adjustable ringing volume
Up to connect 255 units including door stations, extension door stations and extension GU
directional call and intercom with door station, indoor phone and extension GU
Receive calling from door stations, and unlock the door remotely
Switch video signals of the door stations to the GU
Receive all alarm signals under any circumstance, display alarm type, data and time
545pcs alarm information are able to stored
Check the alarm record in any time
Group-calling function, 4 ringtone are available
Ringing and lightening when alarm
Time and date adjusting
Can be connected to the computer through RS232 with 2400 baud rate
With the management software, the functions of remote meter-copy, multi-channel alarm, access control and message broadcasting to be achieved

Display: 16 bits LCD
Screen: 4-inch (CRT) or 5.6-inch TFT
Resolution: 400TVL
Video input: 1Vp-p/75 ohms
Data transmission rate: 2400bps
Distance: 1.2km (add online signal amplifier to extend)
Capacity: 208pcs (including door stations and extension GU)
Wiring: 6 shield lines
Input voltage: 130 to 250V AC
Power: 12V DC ±10%
Static current: ≤150mA
Working current: ≤500mA
Operating temperature: -10 to +55˚C
Dimension: 400 x 280 x 125mm

Video guard unit used in intercom system,CE certificate,color or B&W display