INSTALLATION INSTRUCTIONS
IR-DC4
IR/RS232 INTERFACE MODULE
The IR-DC4 is an IR to RS232 Interface Module. Specifically, the IR-DC4 converts certain Xantech RC68
Remote Programmer IR control codes into RS232 commands that operate the Arrakis Digilink 4 Hard Disk
Audio Jukebox. This allows the unique advantages of the Arrakis Jukebox to be easily integrated into
Xantech IR-controlled whole house music systems. Refer to the Arrakis DC4 Users Manual for complete
configuration and operational details.
DB9F RS232
OUTPUT PORT
IR-DC4
IR IN
IR GND
IR/RS232
INTERFACE MODULE
PWR GND
+12VDC
®
SYLMAR, CA
Fig. 1 The IR-DC4
FEATURES AND SPECIFICATIONS
• IR Signal & Power Inputs:
Plug-in screw-type terminals for four-conductor connections. Handles wire sizes from 24 to 12 gauge.
• Opto-Coupled IR IN Input and Separate IR Gnd permits IR input to be isolated from chassis and power
supply grounds, where needed.
• RC68 Remote Programmer Code Settings for the Arrakis DC4 Control Protocols are as follows:
Code Setting
Arrakis DC4
Player #1
Player #2
Player #3
D-1
D-2
D-3
• AcceptsIRcontrolsignalsfromtheIRoutputsofanyoftheXantechIRReceivers,Keypads,Connecting
Blocks, Controllers, etc.
• Output: RS232 DB9F connector.
• Power Requirements: 12 VDC 1.5 V @ 20 mA.
• Mounting: Flanges, plus supplied screws, permit easy mounting to flat surfaces.
• Dimensions: 4-3/8" L x 1-7/8" W x 1-1/4" H (110mm x 47mm x 32mm)
RC68 PROGRAMMER
The RC68 Programmer (available separately) contains the commands necessary for IR operation of the
DC4 through the IR-DC4.
• Use it to program universal learning devices such as learning remotes, the Xantech Smart Pads,
Controllers, etc.
• NOTE: The RC68 codes operate many other Xantech models as well, therefore, only the button
descriptions that apply to the operation of the DC4 (Overlay "F") are listed on the next page.
1
291-80 IR Receiver
3. Ahighcurrentpowersupply, the782-00(1A@12
VDC), provides the additional current needed for
the keypads.
Hand Held
Remote
781RG
4. A 786-00 power supply, plugged into a switched
AC outlet on the A/V receiver, is used as a source
of system power ON/OFF STATUS voltage (12
VDC) for the Smart Pad2s and the 780-80 IR
Receiver.
7-Foot 3-
Conductor
Cable
Power Supply
To 120 V AC
(unswitched)
3-Conductor
Cable
IR
RCVR
5. A resistor (1k to 10k Ohm) may be added in series
with the STATUS line, if desired, to adjust the
brightness of the STATUS LED in the 780-80 IR
Receiver. Refer to "REMOTE ROOM 3", Fig. 5.
CB12 Connecting Block
(Included with the 291-80)
IR-DC4
IR IN
6. As with the previous example, an RC68 is used to
teach learning remotes (used with the IR receiv-
ers) the commands for each of the DC4 players.
IR GND
PWR GND
+12VDC
IR/RS232
INTERFACE MODULE
®
SYLMAR, CA
GND Jumper
7. An RC68 and the Xantech Dragon DropIR™
software are used to program the Smart Pad2
keypads with the DC4 player commands and the
A/V system commands.
Standard DB9 9-pin Cable
(DB9M-to-DB9F)
Connect to an
RS232 Port (#1 or 3)
on rear panel
DC4
Fig. 6 illustrates how the IR-DC4 is connected to
provide IR control of a Digilink 4 via a PC running the
Arrakis Music-Link Software (Win 95/98). The follow-
ing should be considered when working with this con-
figuration:
HARD DISK AUDIO JUKEBOX
Fig. 4 Direct IR Control of the DC4 using the IR-DC4
REMOTE ROOM 2
REMOTE ROOM 3
REMOTE ROOM 1
REMOTE ROOM 4
+12V
GND
CB12
1. Fig. 6 shows a single 291-
80 IR Receiver as the IR control
source. Multi-room, whole house
systems with many keypads and
IR receivers may also be used,
connectedtotheIR-DC4,asshown
in Fig. 5.
IR
STATUS
Resistor.
See item 5
below
RCVR
Connecting Block
291-80
Smart
Pad™
Smart
Pad™
X
Hidden Link™
IR OUT
IR Receiver
780-80
J-Box
7
Foot Quick
IR Receiver
(rear view)
Connect Cable
+12V
+12V
STATUS
STATUS
GND
GND
IR OUT
IR OUT
Satellite Receiver
120 V AC
(Unswitched)
782-00
283M
Power
Supply
Blink IR™
Smart
Pad™
Plug into
Switched
AC Outlet
on A/V
Receiver
(see text)
VCR
789-44
Connecting Block
283M
Blink IR™
AV Receiver
2. TheArrakisMusic-LinkSoft-
ware permits the in-room IR re-
ceivers and keypads to remotely
operate the PC, and through it, the
+12 VDC
GND
283M
Blink IR™
STATUS
IR IN
Mouse Emitter
–
+
786-00
White
Striped
Side
Power Supply
(12V at 10 mA)
("+")
Mono Mini Plug to Stripped
Ends, 2-Conductor Cable,
Xantech Pt #6015900
White Striped Side
IR-DC4
IR IN
IR GND
PWR GND
+12VDC
IR/RS232
INTERFACE MODULE
®
SYLMAR, CA
Standard DB9 Cable
(DB9M-to-DB9F)
Connect to an
RS232 Port (#1 or 3)
on rear panel
DC4
HARD DISK AUDIO JUKEBOX
Fig. 5 Multi-Room Direct
Control of the DC4
using the IR-DC4
3
IR-DC4
DC4. For details of the many operational functions and configuration options for the Arrakis system,
refer to the Arrakis DC4 users manual and DC4 Series Application Notes.
291-80 IR Receiver
DB9 Cable
GND Jumper
IR-DC4
IR IN
IR GND
PWR GND
+12VDC
IR/RS232
INTERFACE MODULE
IR
RCVR
®
SYLMAR, CA
CB12 Connecting Block
(Included with the 291-80)
Null Modem
Adapter or Adapter
Cable
To 120 V AC
(unswitched)
DB9 Cable
Connect to 1st
Serial Port
Connect to 2nd
Serial Port
781RG
Power Supply
PC
Connect to
RS232 Port #4
on rear panel
DB9 Cable
DC4
HARD DISK AUDIO JUKEBOX
Fig. 6 Control of the DC4 using an IR-DC4 and a PC with Arrakis Music-Link Software
5-10-00
4
IR-DC4
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