Allen&Heath DR Switch - Manual (Page 2)

DR-switch User Guide AP4493 2
Installing the Unit
Connecting Mains Power
Connecting the DR-switch to the DR66/128
Networking DR-switch Units
You may connect up to three DR-switch units
to provide up to 72 additional switch inputs and
48 additional logic outputs.
The units are daisy chained by connecting the
DR-LINK OUT of the first unit to DR-LINK IN of
the second and so on.
Maximum distance between each unit and the
next is 300 metres. This lets you position each
DR-switch unit closer the wall plate wiring.
Ensure a good mains supply and solid
grounding to each unit.
FIT DR-LINK ADAPTER CARD
SWITCH 25-48 OUT 17-32
SWITCH 49-72 OUT 33-48
SWITCH 1-24 OUT 1-16
Before starting read the Important Safety
Instructions printed on Safety Sheet AP3345
and on the rear panel of the unit. Check that
the correct mains lead with moulded mains
plug and IEC connector has been supplied with
your unit.
With the mains supply turned off plug the IEC
lead fully into the rear panel socket. Apply
power and press the on/off switch to turn the
unit on.
FUSE: T500mA
WARNING
THIS APPARATUS MUST BE EARTHED.
ATTENTION: REMPLACER LE FUSIBLE AVEC UN DES MEMES CARACTERISTIQUES.
FOR CONTINUED PROTECTION AGAINST RISK OF FIRE REPLACE FUSE WITH SAME TYPE AND RATING.
100 - 240V~
47-63Hz ~ 15W MAX
CAUTION: RISK OF ELECTRIC SHOCK. DO NOT OPEN. AVIS: RISQUE DE CHOC ELECTRIQUE - NE PAS OUVRIR.
The DR-switch can be rack mounted or free
standing. There are no user controls on the
front panel. Allow a minimum of 75mm
clearance behind the unit for the connectors
and cables. Ensure adequate ventilation to the
side of and behind the unit.
It is shipped with its rack ears fitted and its feet
removed ready to be mounted in a standard
19” equipment rack. 1U rack space is
required.
For desk mount operation remove the two rack
ears using a Torx (star head) T10 screwdriver.
Fit the four plastic feet provided by pressing
them into the underside holes.
The DR66/128 main unit communicates with
the DR-switch using the Allen & Heath DR-
LINK serial logic connection. This requires a
standard RJ45 CAT5 STP (shielded twisted
pair) cable. To ensure reliable performance
the cable shield must be attached to the metal
shell of the plugs. Do not use a UTP
(unshielded) cable.
A 2 metre CAT5 cable is provided with the unit.
If you need to connect a longer cable make
sure it is correctly wired to the CAT5 STP
standard. Maximum cable length is 300
metres. Plug one end of the cable into the DR-
LINK adapter card fitted to the DR66/128. Plug
the other end into the DR-switch DR-LINK IN
socket.
The front panel link LED indicator lights when
communication is established with the
connected DR66/128. The unit features logic
to automatically detect when the system is
powered and operating correctly.
DR-LINK ADAPTER CARD FITTED
DR-LINK IN
RJ45 CAT5 STP CABLE
300m MAX
power link