Channel Plus COAXIAL CABLE PANEL 3308 - Manual (Page 4)

Mounting the 3308
The model 3308 should be mounted in a location that is safe and dry. The model 3308 is
small enough to be mounted
a stud wall. Alternatively, the 3308 may be mounted
inside a ChannelPlus Integrated Home Network enclosure.
inside
We recommend using only RG-6 coax when wiring a house. Why? Although good RG-59 has
only slightly more loss than RG-6, it is harder to find good RG-59. RG-6 is a little more
expensive and a little harder to run (because it is thicker). But you will avoid surprises if you
stick to RG-6.
NOTE:
Circuit Breaker
Model 2010
Power Injector
Note: The model 2010
must connect to
this port.
Power LED
Power LED
Power LED
The model 2010 and 3308 have built-in circuit breakers. If any of these LEDs are not
lit, reset the circuit breaker by disconnecting and reconnecting the power supply. If
the system does not reset, look for an installation error.
6
Expanding the 3308:
CATV/Ant
Model 3308
Model 3308 Model 3308
You may connect up to 8 more
3308s to the outputs of a ‘master’
3308, for a total of 64 TV outlets.
The longest recommended coax
run is 150 feet (includes coax from
master to secondary unit and from
secondary unit to TV).
Up to 64 TV outlets
All 3308s must be powered individually.
Each 3308 can have its’ own ‘zoned’ IR control and local modulators.
(Modulators connected to a secondary 3308 will be viewable only on
those 8 TVs. IR control signals will be confined to only that 3308.)
IR EMITTERS
POWER 15VDC
SYSTEM POWER
FROM MODULATOR
VIDEO SYSTEM
7
Model 2600
(surface mount)
Model 2601
(surface mount)
Model 2603
(in-wall mount)
Shown with
model 2613 cover
Herringbone interference on modulator channel (diagonal lines)
H e r r i n g b o n e i n t e r f e r e n c e o n m a n y c h a n n e l s , i n c l u d i n g m o d u l a t o r
channels (disappears when you remove the CATV/Ant feed)
...
You may have chosen a channel number that is not completely vacant. Distant UHF stations
may not be watchable, but will cause interference if you try to try to create a new channel at the
same frequency. Also, cable companies often have extra signals where there should be none.
Try moving the modulator channel to another number. You may have to add a low pass filter to
remove cable company noise. If a filter does not work, try adding a DC-block to remove
common mode interference.
… The RF amplifier can be
overloaded by abnormally strong signals. Often, you can cure the problem with a simple
attenuator. Use a variable attenuator and try to find a signal level where the interference just
disappears. Sometimes, the problem is one station that is far stronger than the rest. In this
case, attenuating all of the signals with a simple attenuator will cause the desired stations to be
weak (snowy). You must reduce the strength of only the offending station. A common FM trap
will help if the problem is a nearby FM tower. If the problem is a nearby TV station, often the
station management can provide suitable filters.
Infrared Remote Control Problems … The most common cause of IR problems are:
IR emitter not located directly above sensor on the video device. Reposition the IR emitter
TV is radiating electrical noise. Reposition IR target.
IR target is ‘seeing’ optical noise, such as a solid state flourescent lamp. Reposition IR target.
Things to watch for:
POWER
LED EMITTER LED EMITTER
TARGET
TO
TV TO
TV
Remember, connecting
75 ohm terminators
directly to the outputs is
not necessary and will
cause the circuit breaker
to trip.
Inexpensive DC block for RF Inexpensive variable attenuator
Mounting the 3308
The model 3308 should be mounted in a location that is safe and dry. The model 3308 is
small enough to be mounted
a stud wall. Alternatively, the 3308 may be mounted
inside a ChannelPlus Integrated Home Network enclosure.
inside
We recommend using only RG-6 coax when wiring a house. Why? Although good RG-59 has
only slightly more loss than RG-6, it is harder to find good RG-59. RG-6 is a little more
expensive and a little harder to run (because it is thicker). But you will avoid surprises if you
stick to RG-6.
NOTE:
Circuit Breaker
Model 2010
Power Injector
Note: The model 2010
must connect to
this port.
Power LED
Power LED
Power LED
The model 2010 and 3308 have built-in circuit breakers. If any of these LEDs are not
lit, reset the circuit breaker by disconnecting and reconnecting the power supply. If
the system does not reset, look for an installation error.
6
Expanding the 3308:
CATV/Ant
Model 3308
Model 3308 Model 3308
You may connect up to 8 more
3308s to the outputs of a ‘master’
3308, for a total of 64 TV outlets.
The longest recommended coax
run is 150 feet (includes coax from
master to secondary unit and from
secondary unit to TV).
Up to 64 TV outlets
All 3308s must be powered individually.
Each 3308 can have its’ own ‘zoned’ IR control and local modulators.
(Modulators connected to a secondary 3308 will be viewable only on
those 8 TVs. IR control signals will be confined to only that 3308.)
IR EMITTERS
POWER 15VDC
SYSTEM POWER
FROM MODULATOR
VIDEO SYSTEM
7
Model 2600
(surface mount)
Model 2601
(surface mount)
Model 2603
(in-wall mount)
Shown with
model 2613 cover
Herringbone interference on modulator channel (diagonal lines)
H e r r i n g b o n e i n t e r f e r e n c e o n m a n y c h a n n e l s , i n c l u d i n g m o d u l a t o r
channels (disappears when you remove the CATV/Ant feed)
...
You may have chosen a channel number that is not completely vacant. Distant UHF stations
may not be watchable, but will cause interference if you try to try to create a new channel at the
same frequency. Also, cable companies often have extra signals where there should be none.
Try moving the modulator channel to another number. You may have to add a low pass filter to
remove cable company noise. If a filter does not work, try adding a DC-block to remove
common mode interference.
… The RF amplifier can be
overloaded by abnormally strong signals. Often, you can cure the problem with a simple
attenuator. Use a variable attenuator and try to find a signal level where the interference just
disappears. Sometimes, the problem is one station that is far stronger than the rest. In this
case, attenuating all of the signals with a simple attenuator will cause the desired stations to be
weak (snowy). You must reduce the strength of only the offending station. A common FM trap
will help if the problem is a nearby FM tower. If the problem is a nearby TV station, often the
station management can provide suitable filters.
Infrared Remote Control Problems … The most common cause of IR problems are:
IR emitter not located directly above sensor on the video device. Reposition the IR emitter
TV is radiating electrical noise. Reposition IR target.
IR target is ‘seeing’ optical noise, such as a solid state flourescent lamp. Reposition IR target.
Things to watch for:
POWER
LED EMITTER LED EMITTER
TARGET
TO
TV TO
TV
Remember, connecting
75 ohm terminators
directly to the outputs is
not necessary and will
cause the circuit breaker
to trip.
Inexpensive DC block for RF Inexpensive variable attenuator