Gira 1288 00 Operating Instructions Manual page 17

Bus
Output for powering of the Gira door communication bus with
regulated direct current (26 V DC ± 2 V, 700 mA).
(Door opener output 230 V AC/max. 2 A)
L1
N
12 V~ (Door opener output 12 V AC)
Not a continuous 12 V output
Power is not continuously supplied at the door opener out-
put. The 12 V power supply at the door opener output is only
present for the door opener time set at the adjuster.
Function earth line
A door opener which
cannot be connected to
the "12 VAC" terminals
due to its electrical val-
ues (e.g. very low-ohm
or 24 V AC) can be con-
nected to the equipo-
tential-bonding relay
contact with an exter-
nal power supply
(230 V AC, max. 2 A).
The 12 VAC output is
used to supply power to
and control the
door opener (8 - 12 V,
max. 1.1 A).
17