IR Receivers & Modems
1
INSTALLATION INSTRUCTIONS
291-455
455 kHz HIDDEN LINK INFRARED RECEIVER
The 291-455, Fig. 1, is a single-frequency version of
the 291-00 series IR receivers. It is designed specifi-
cally to accept the 455 kHz IR carrier frequency used
on certain manufacturer's A/V products, such as Bang
& Olufsen and Kenwood (some models).
• NOTE:
The 291-455 will not pass IR commands
from remote controls with any other IR carrier
frequency!
• If you use lower frequency IR controlled compo-
nents in the same system with the 291-455, you
must use standard Xantech IR receivers, such as the 291-10 (side-by-side with the 291-455, if necessary),
to repeat the lower frequency commands. Refer to Fig. 3.
• The 291-455 must be used in conjunction with the Model MS455, a 455 kHz IR Modulator, to complete
the system.
• The attractive case of the 291P permits cabinet or shelf-top locations when wall-mounting an IR receiver
is not practical.
PRINCIPLE OF OPERATION
The 291-455 down-converts the 455 kHz carrier to 40 kHz so that the IR signal can be passed along a
standard 3-conductor cable to the equipment location. At the equipment location, the 3-conductor cable
connects to the MS455, a 455 kHz IR Modulator. This device accepts the 40 kHz signal and "up-converts"
it back to 455 kHz. It is then transmitted to the 455 kHz controlled product via a special shielded emitter
(supplied with the MS455).
FEATURES AND SPECIFICATIONS
• IR carrier reception frequency: 455 kHz.
• IR carrier repeat frequency: 40 kHz.
• IR reception range: 30 feet on axis (actual range depends on levels of IR or EM interference).
• Nominal reception angle:
±
45
°
off axis.
• Red talkback LED tests system for correct wiring as well as indicating infrared reception.
• Connections: Captive 7' cable with 3.5mm stereo mini plug. CB12 Connecting Block included for
connection ease.
NOTE:
The 291-455 will not operate in 2-wire Phantom Power mode.
• Requires the use of the MS455 Modulator and a 283SH shielded emitter to complete the repeater system.
• Recommended cable for use between the CB12 and the MS455: 3-conductor/24 gauge solid or stranded
wire up to 200', 22 gauge up to 600', 20 gauge up to 2000' and 18 gauge up to 5000' (unshielded OK).
• Power Consumption: 12 volts DC @ 15 mA. (Powered from the MS455).
• 781C-00 Power Supply (not included) powers up to six 291-455's with one MS455.
• Dimensions: 3-1/4" W x 1" H x 2" D.
291-455
455 kHz IR Receiver
CB12
Connecting Block
291-455
455 kHz IR Receiver
Front View
OUT
VGS
IR
RCVR
PWR
Side View
