Alcad GRF-208 Instrucciones De Instalación página 15

Make the electrical connections. See diagrams and
"Connection instructions", page 11.
Programme the connection brackets/telephones
from the main entrance panel (see the technical
datasheet that comes with the monitor connection
bracket/telephone).
D I G I TA L V I D E O D O O R E N T R Y S Y S T E M S
15 V
Once it has been connected up, establish which is
the main entrance panel in the system (panel from
which the connection brackets/telephones should
be programmed): in standard installations, leave
the J1 jumper in place. In installations of several
points of access, remove the J1 jumpers from the
rest of the panels.
19
J1 J2
BUS
9 10 111222SC118 IN 7 D1D2 D3
Main entrance panel
Adjust the volume level on the entrance panel and
on the telephones (1). If there is acoustic feedback,
adjust the feedback control (
19
J1 J2
BUS
15 V
9 10 111222SC118 IN 7 D1D2 D3
All other entrance panels
) (2).