.612 Gira electrical installation systems
Door communication Audio installation scenarios
I
Technical
information
Audio
A
1287 00
“Branch line” solution
Connection home stations with the
“branch line” solution
Connection the door station with the
“branch line” solution
Floor call button (ET)
A standard button (NO contact)
is used the floor call button
(ET).
The maximum cable lengths the
individual sections (from the con-
trol unit the last device) are
dependent the cable diameter
used.
A maximum devices may
be connected each cable sec-
tion.
A
1287 00
“Loop-through” solution
Connection home stations with the
“loop-through” solution
Connection the door station with the
“loop-through” solution
Cable lengths for audio com-
ponents
The maximum total cable length
(distributed among several cable
lines) 700m.6mm diameter: 170m,
- 0.
Call-button illumination
The call-button illumination a
door station audio can be
switched off removing the
jumper between BUS and ZV. The cable lengths for audio
components are:
- 0.8mm diameter: 300m
