Allen&Heath GR1 SERVICE MANUAL - Manual (Page 9)

GR1
USER GUIDE
6
INSTALLATION
The GR1 fits into a 1U space in a standard 19" rack system. Alternatively the unit may be mounted into a cabinet
or plinth, or simply used free standing.
Dimensions shown are case size in
millimeters. Allow extra space as nec-
essary for the front controls (add
26mm) and for the rear connectors.
Mount the console using 2x M6 bolts
each side for maximum strength. These
should be provided by the supplier of
the rack kit.
The rack should allow a minimum side
to side opening of 445mm.
Provision should be provided for re-
moval of the top cover for access to the
internal configuration links.
CONNECTING POWER
A 1.7 meter long captive power cord with fitted plug
connects the GR1 to mains power. Check that the rear
panel indicates the correct setting for the local mains
supply, and that the correct mains plug is fitted. The
unit may be supplied wired for 100, 110, 120, 220, or
240V.AC. The rear panel mains protection fuse is a
standard 20x5mm antisurge type T315mA for 220-
240V or T630mA for 100-120V.AC. An emergency DC backup supply may be connected
so that the unit remains powered in the event of a
mains supply failure. This switches in automatically
when the internal DC supply voltages fall below the
level of the connected backup source. The front panel
ON indicator always shows when the unit is powered
either from mains or the backup supply.
PRECAUTION !
TO AVOID DAMAGE TO THE
INTERNAL ASSEMBLIES DO NOT
FIT SCREWS THROUGH SIDES
OR UNDERSIDE OF THE
CONSOLE. SECURE TO
EXTERNAL BRACKETS OR
FITTINGS THROUGH THE FRONT
PANEL RACK MOUNTING HOLES.
DC BACKUP SUPPLIES
MAINS INPUT