2
+12V
STATUS
GND
IR OUT
283M
Blink-IR™
Mouse Emitter
To 120 V AC
(unswitched)
781RG
Power Supply
789-44
Connecting Block
283M
Emitter
283M
Emitter
REMOTE ROOM
MAIN ROOM
Hand Held
Remote
VCR
GND
IR
OUT
+12V
780-80
J-Box
IR Receiver
(rear view)
3-Conductor
Inter-room Cable
(unshielded OK)
780-80
IR RECEIVER
®
12VDC
+12 VDC
GND
STATUS
IR IN
EMITTERS
IR
RCVR
789-44
CONNECTING BLOCK
®
Satellite Receiver
AV Receiver
INSTALLATION
The 780-80 is intended to be wired to the IR INput
terminals of Xantech Connecting Blocks or other
Xantech devices.
• Use a 3 or 4-conductor cable (24 gauge up to
200', 22 gauge up to 600', 20 gauge up to
2000', 18 gauge up to 5000'), to run between
the remote room and main room locations.
• Make connections to a Xantech connecting
block, power supply and emitters as shown in
Fig. 2 - a typical basic system:
• While it is possible to make wired connections without the connecting block, it is not recommended. The
connecting block reduces installation time, helps to eliminate errors, allows easy troubleshooting and
permits easy system upgrades later, if needed.
• Input connections must be made as illustrated. To extend the Emitter wires to a more distant location,
you may splice in 2-conductor wire, in the wire gauges mentioned before, as needed.
• The 780-80 may be connected to any of the
Xantech Connecting Blocks, Controllers,
Interface modules, etc., that have +12VDC,
IR IN and GND terminals, such as the
CB12, 789-44, 791-44, 795-20, 796-20, 794
and 797 series, etc.
• 780-80's may be connected in parallel to
these terminals in any combination with
other Xantech 3 or 4-conductor IR receivers
or keypads (12 IR receivers max).
A more advanced system, using 780-80's and
a variety of other Xantech IR receivers con-
nected to a 791-44 Amplified Connecting
Block, is shown in Fig. 3.
Adjusting the IR Carrier Frequency
The 780-80 is factory set to an IR carrier
repeat frequency of 38 kHz. This will be
correct for the majority of installations. How-
ever, some manufacturer's components that you wish to control may use different carrier frequencies (such
as the RCA DSS satellite receivers that use 56 kHz). If such carrier frequencies fall within the range of 32
kHz to 56 kHz, you can adjust the 780-80 to match them for best range performance. The adjustment can
be made through a small opening on the front. See Fig. 4.
To adjust, proceed as follows:
1. First, try the 780-80 in a repeater system. If it works well with good range,
do not make any
adjustments!
2. If it does not work or has poor range (less than 15 feet), determine the IR carrier frequency of the
product you wish to control. Contact the manufacturer of the product, if necessary, to determine this
frequency.
3. Using a small blade type screwdriver (3/32" blade width max.), rotate the adjustment shaft until the slot
lines up with the desired frequency. Refer to Fig. 4.
780-80
Fig.2
780-80 Basic IR Repeater System
Fig.3
780-80 IR Receivers in a Typical Multi-room System
283M
Blink-IR™
Mouse Emitter
To 120 V AC
(unswitched)
781RG
Power Supply
283M
Emitter
283M
Emitter
283M
Emitter
283M
Emitter
VCR
Cassette DecK
GND
+12V
490-00
Series
Micro Link™
IR Receivers
3-Wire
Cable
IR
OUT
GND
+12V
Red
Stripe
3-Wire
Cable
IR
OUT
GND
+12V
480-00
Dinky Link™
IR Receiver
Red
(or white)
Stripe
REMOTE ROOM 1
780-80
J-Box IR Receiver
780-80
J-Box IR Receiver
7 Foot 3-Conductor
Cable with Quick
Connect Stereo
Mini Plug
490-30
Series
Micro Link™
IR Receivers
MAIN ROOM, EQUIPMENT AREA, ETC.
REMOTE ROOM 2
REMOTE ROOM 3
REMOTE ROOM 4
GND
IR
OUT
+12V
3-Conductor
Room-to-
Room Cables
(Home Runs)
+12V
STATUS
GND
IR OUT
+12V
STATUS
GND
IR OUT
791-44
Amplified Connecting Block
780-80
IR RECEIVER
®
780-80
IR RECEIVER
®
Satellite Receiver
AV Receiver
CD Changer
+ 1 2 V D C
G N D
EMITTERS
12 VDC
HIGH
IR
OUT
S TAT U S
I R I N
IR
RCVR
791-
44
AMPLIFIED
CONNECTING BLOCK
®
IR
OUT
