INSTALLATION INSTRUCTIONS
172-94X
XTRA LINK 2®
REMOTE CONTROL EXPANSION KIT
The Model 172-94X is an expansion kit intended for use when installing Xtra Link 2's in more that one room.
It includes only the parts needed for each additional room, thus avoiding the unnecessary duplication of
couplers, emitters and coax jumper cables.
The 172-94X kit consists of the following supplied parts:
291-00 IR Receiver
781C-00
INJ94 Injector
Power Supply
TV
INPUT
INJ94 INJECTOR
IR
RCVR
+12 V
Coax Jumper Cable
Fig. 1 172-94X Kit Parts
1. One 291-10 Infrared (IR) Receiver. It is placed at the remote room location to receive IR signals
-from the handheld remote controller.
2. One INJ94 Injector. This unit, located in the Remote Room, injects the remote control signal into the
room-to-room coaxial cable (along with the TV signal) and passes it to the CPL94B Coupler in the
Main room. It also allows quick connection of the 291-00 IR Receiver and 781RG Power Supply
cables.
3. One short coaxial cable. Connects the INJ94 Injector to the TV in the Remote Room.
4. A 781C-00 Power supply. This plugs into an unswitched 120V AC outlet to provide power to the
291-00 IR Receiver.
INSTALLATION
Fig. 2showstheconnectionsnecessarywhenusinga172-94Xexpansionkittoprovideremotecontrolfrom
an additional room.
Begin by installing a standard 172-94 kit, for one of the remote rooms. (Refer to the owner's manual for the
Xtra Link 2 Model 172-94, for basic system connections). Next, using one of the 172-94X kits, install it into
the second remote room, making connections as shown in Fig. 2. Note that a 2-way RF splitter is used to
split the coax signal to each of the remote rooms. This splitter must be a DC passing type, such as the
Xantech Model 200-00.
NOTE: If RF amplifier(s) are used anywhere in the line of coaxial cable between the CPL94B Coupler and
the INJ94 Injectors, you must use a Xantech BYPASS94 KIT to route the IR commands around such
amplifier(s).
ADVANCED MULTIROOM HOOKUP
Fig. 3 shows an advanced system using six 172-94 plus five 172-94X Expansion Kits, in a multiroom
installation. The connection concept is essentially the same as in Fig. 2, except for the additional splitters,
RF amplifiers, etc. that need to be taken into consideration.
1
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Two Remote
Rooms
not configured
with IR receivers
Six Remote Rooms, five with 172-94X Expansion Kits, configured in the same
manner as shown in Fig. 2
291-00
291-00
291-00
TV
TV
TV
TV
TV
TV
TV
TV
INJ94
Injector
(6 locations)
781C-00
Power
Supply (6)
202-00
4-way RF Splitters
DC Passing
203-00
DC Blockers (2)
(See text, item 2,
page 3)
200-00
2-way RF splitter
DC Passing
RF Signal
IR Signal
CPL94B
Coupler (1)
RF
AMP
284M or 286M
Dual Emitter
(not included)
2512
2-way
Combiner
Modulator
(3-Input)
284M or 286M
Dual Emitter
(not included)
A/V Patch
Cords
Satellite Receiver
DVD Player
VCR
Cable Box
Fig. 3 Using Multiple 172-94X Kits For Additional Remote Rooms
3
172-94X
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TROUBLE SHOOTING:
1. Perhaps the most common problem encountered is
stray IR or RF interference preventing proper opera-
tion of the controlled equipment.
Coaxial cable
to IR receivers
and TVs
Examples of such interference are:
CPL10
RF
RF/IR
A. Fluorescent, Compact Fluorescent, Neon or
Halogen lights, Neon Art, and light dimmers.
CPL10 COUPLER
IR
Short Coaxial
Jumper Cable
Short Coaxial
Jumper Cable
B. Direct or reflected sunlight.
C. Infrared security sensors (active type).
RF Amp
D. RF radiation from TV sets that may be close to IR
Receivers.
OUT
IN
It may be necessary to move either the interfering
source or the IR receiver to achieve proper
operation. SometimestheXantechSunFilterswill
help.
RF
RF/IR
CPL10 COUPLER
IR
CPL10
You can confirm the source of the interference by
temporarily turning off the remote room TV set, isolat-
ing the 291-00 Receiver from all sunlight and turning
off all lights, light dimmers and Infrared security sys-
tems. Then check to see if the 291-00 operates the
satellite receiver or other components.
Coaxial cable
3.5/3.5mm Mono
Mini Plug Cable
from IR controlled
RF sources
Fig. 4 Using a Xantech BYPASS94 Kit
(see text, item 3, page 2)
2. Ifthesignaldoesnotseemtobegettingthroughtothe
IR Emitters, check for shorts or opens anywhere
between the IR receivers in the remote rooms and the
emitters at the controlled equipment.
A. Remember, you must have DC continuity all the way from the IR (IR RCVR) jacks on the
Injectors, through the coax cables to the IR (emitter) jack on the coupler, without shorts to
ground.
B. Use a Xantech 179-99 Test-IR (or a Blink IR Emitter) plugged into the IR (emitter) jack on the
coupler to verify that the IR signal is being received from each room.
C. If necessary, use a multimeter in the low Ohms range to check for continuity, shorts, opens,
etc.
D. Check for open emitters by substituting a known good emitter.
3. If you have one or more TV sets in rooms where you do not have Xtra links and they share the same
DC passing RF splitter, you must use DC Blockers (Xantech Model 203-00) connected in the coaxial
line to each of these TV sets.
RefertoFig. 3. Thisisamust topreventtheRFInputofsuchTVsetsfrom"shortingout"theIRcontrol
signal.
4. If a given component does not work, reposition the emitter. It may not be located directly over the
component’s IR (infrared) sensor receiving “window”. Consult the owner's manual of the unit or the
manufacturer for the exact location of the IR “window”.
12-19-01
Rev.C
4
172-94X
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