Lightronics AR1202 - Manual (Page 7)

Page 7 of 22
AR – 1202 RTC ARCHITECTURAL DIMMER
Revision 1.93 OWNERS MANUAL 06/03/2008
www.lightronics.com
Lightronics Inc. 509 Central Drive Virginia Beach, VA 23454 Tel 757 486 3588
DMX CONSOLE CONNECTIONS
DMX console signals to the AR-1202 should be
transmitted over a twisted pair, shielded, low
capacitance cable. A DMX console transmits from a
female, 5 Pin XLR Connector.
See the EXTERNAL CONNECTIONS and the
example below for specific connection information.
DMX TERMINATION
A DMX bus should be terminated (only) at the last
receiving device on the chain. This is done by
connecting a 120 ohm, 1/4 watt resistor across the
DMX DATA - and DMX DATA + lines.
A DMX bus should be daisy chained to all its
receiving units. It should NOT be connected in a star
arrangement with multiple "home runs".
DMX CONNECTIONS EXAMPLE
1
3
4
5
2
2 Conductor Shielded Cable
DMX CONSOLE
AR-1202 AR-1202
1 2 3 4 5 6 7 1 2 3 4 5 6 7
120 Ohm
DMX
Terminator
DMX Common
DMX DATA -
DMX DATA + DMX Common
DMX DATA -
DMX DATA +
5 Pin Male XLR
1 DMX Common
2 DMX DATA -
3 DMX DATA +
PIN SIGNAL
Common
DMX Data -
DMX Data +
Shield
DMX CABLE
CONDUCTOR ARRANGEMENT FOR
TWISTED PAIR, SHIELDED CABLE
CAUTION
REMOVE ALL POWER FROM THE AR-1202
BEFORE MAKING OR CHANGING DMX
CONSOLE CONNECTIONS.
CONSOLE DMX OUTPUT CONNECTOR
(5 PIN FEMALE XLR )