Functions:
1) Can be connected with management machine by the online host
2) Single key calls the indoor unit from the outdoor unit
3) Unlock or disarm by ID card of the indoor unit
4) Can be mated with the meter copy controller
5) Can be mated with door to door intercom system

System components:
1) Door to door villa type video outdoor unit
2) Door to door video indoor unit (villa type)
3) Door to door online outdoor unit
4) Two-way switch power

Specifications:
1) Camera head: 1/3〞CCD
2) Resolving power: 420 TV lines
3) Illumination: 0.01LUX
4) Video output: 1VP-P/75ω
5) Intercom time limit: 75 seconds
6) Password: 1 - 6 digit number
7) Working power: DC 12V  10%
8) Working temperature: -40  70oC
9) Size: 125 x 175 x 38mm (Villa type II), 120 x 200 x 48mm (Villa type V)
10) Installation method: iron door

Villa type indoor unit: JB-2004V Specifications;
1) Power consumption: static state ≤30mA (without detector)
2) Dynamic state ≤100mA (without detector)
3) Monitor: 4〞B/W (CRT)
4) Resolving power: 400 TV lines
5) Video output: 1VP-P/75ω
6) Audio distortion: <5%
7) Working temperature: -10 - 55oC
8) Size: 225 x 195 x 75mm (V-2 type), 225 x 185 x 75mm (V-3 type),
230 x 210 x 55mm (V-4 type), 297 x 225 x 62mm (V-7 type),
284 x 240 x 60mm (V-8 type), 297 x 225 x 62mm (V-7 type),
284 x 240 x 60mm (V-8 type), 347 x 253 x 67mm (V-9 type)
9) Installation method: hanging type(V-2, V-3, V-4 type), built-in
type(V-7, V-8, V-9 type)

Door To Door Online Outdoor Unit Specifications:
1) Display: 4-digit LED
2) Video output: 1VP-P/75ω
3) Audio distortion: <5%
4) Audio SNR: ≥50dB
5) Intercom time limit: 75 seconds
6) Unlock password: 1 - 6 digit number
7) Working temperature: -40 - 70oC
8) Working power: DC 12V  10%
9) Power Consumption: static state ≤160mA
10) Dynamic state ≤350mA
11) Size: 360 x 165 x 50mm (aluminum type I), 342 x 140 x 62mm
(aluminum type II)