Allen&Heath DR Switch User Manual

Introduction, Dr-switch, Dr-switch user guide ap4493

DR-switch User Guide AP4493

Introduction

DR-switch is an add-on unit for the Allen & Heath DR66 and DR128 digital mixers. It provides an additional 24
switch closure control inputs and 16 logic control outputs in a 1U high rack or desk mount case. Up to three
units can be connected providing up to 72 additional switch and 48 additional logic controls. These can be
custom wired by the installer to allow external equipment to control pre-determined mixer functions, or the mixer
to control external equipment. Typical applications include room wall plates for local volume control and source
selection, automatic control of room dividers, projection screens, media players, lamps and other equipment.

The inputs and outputs are opto-isolated to avoid problems with equipment interaction. Grounding the switch
inputs using simple contact closures triggers the programmed mixer function. The logic outputs are open
collector and can be wired to use the internal reference voltage or an external power supply. These typically
drive LED indicators, filament bulbs, relays and circuit logic. Wiring the interface should be carried out by
competent installation personnel. The switch and output functions are easily programmed using the WinDR
software that configures the system.

The DR66/128 communicates with the DR-switch via an RJ45 serial connection running the Allen & Heath DR-
link protocol. A standard 2 metre CAT5 STP cable is provided. However, you can use a cable up to 300
metres long letting you position the unit closer to the local switch wiring. A pass through connection lets you
network up to three units by daisy chaining them. An interface card needs to be fitted to the DR66/128 to
provide the additional serial port. Installation is a straightforward process requiring removal of the DR66/128 top
cover, fitting the internal option card provided and plugging on the cable harness supplied. Refer to Fitting
Instructions sheet AP4615.

Important Notes

To use the DR-switch the DR66/128 must be running DR
operating software version 2 from V2.11 or greater. DR-switch
will not function using earlier versions of software. Make sure
your PC is running the compatible version of WinDR. Refer to
the Help file provided with the software for details on how to
program the controls. These settings are stored as part of the
DR66/128 mixer patch memories.

The latest version of DR operating software can be downloaded
from the Allen & Heath web site:

http://www.allen-heath.com

For technical assistance email

[email protected]

The DR-link interface card fits into the SysNet option slot in the
DR66/128 mixer. This means that you cannot have DR-link
and SysNet installed at the same time. The SysNet protocol
can be run on the RS232 port instead if required.

This product complies with the European Electromagnetic
Compatibility directives 89/336/EEC & 92/31/EEC and the
European Low Voltage Directives 73/23/EEC & 93/68/EEC.

NOTE: Do not remove the cover of the DR-switch unit. There are no user serviceable parts inside. Any
changes or modifications to the unit not approved by Allen & Heath could void the compliance of the equipment
and therefore the users authority to operate it. Whilst we believe the information in this guide to be reliable we
do not assume responsibility for inaccuracies. We also reserve the right to make changes in the interest of
further product development.

ALLEN

HEATH DR-switch for DR66/128

AP4493 issue 2

User Guide

power

link

DR-switch

24 IN 16 OUT SWITCH CONTROLLER

12 11 10 9

20 19 18 17

SWITCH INPUTS

LOGIC OUTPUTS

+ -

+ - + - + -

+ -

- + - + -

+ - +

- + - + -

+ - + - + - + -

switch

opto

+10V

2K2

opto

+10V DC max total 500mA

open collector

+24V DC, 200mA max

+10V

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.

Made in the UK by ALLEN&HEATH LIMITED

Complies with UL6500, CSA-E65, EN60065

OUT

DR-LINK

iDR