7
1.3.15 Analog Doorphone Unit (DHU-A7)
Item
Description
Resistance of Single Line Loop
600 Ω
Cabling Method
2 wires twist connection to DHVR
Communication
Two-way, Handsfree
Indicator
LED
Call Button
1
Max. installing distance to DHVR card
15
Dimension
90x143x35 (mm)
1.3.16 Digital Doorphone Unit (DHU-D3)
Item
Description
Resistance of Station Line Loop
600 Ω
Cabling Method
2 wires twist connection to Station port
Communication
Two-way, Handsfree
Indicator
LED
Button
1
Max. installing distance to STA port
150M
1.3.17 Doorphone Opener Repeater (DHR-D1)
Item
Description
Door phone Interface
600 Ω, 1 Loop 2 wires
〜
4 wires (3 groups)
Resistance of Station Line Loop
L0
Electric Lock
1 Loop 3 wires (power included)