Open House ChannelPlus H541 Manual

ChannelPlus Video Modulator
The H541 modulator
any baseband video and audio signal to a user-selected
Typical Installation
Coax Panel (Model H838HHR typical)
B
+Pwr
Modulators
A
350-086 power
supply (included) RG-6 Coaxial cable
Model H541
Output
Power Channel Select
Single Channel Digital Modulator
Use the DIP switch to setup channel,
mode(UHF or Cable), system(std, irc
or hrc) and termination method.
Things To Watch For:
No picture ... Verify that the video source is on and is producing a video signal. Check that
the TV and the modulator are tuned to the same channel. For example, if the modulator is
broadcasting on UHF channel 16, make sure the TV is on UHF 16 rather than CATV 16. UHF
16 and CATV 16 are at different frequencies.
Weak ChannelPlus UHF channel ... If the TV has a separate UHF input, be sure that it is
connected.
Herringbone interference on modulator channel (diagonal lines):
a channel number that is not completely vacant. Distant UHF stations may not be watchable,
but will cause interference if you 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 the
cable company noise. If the filter does not work, try adding a DC-block to remove common
mode interference.
Herringbone interference on many channels, including modulator channels
(disappears when you remove the CATV/antenna feed)
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 is far stronger than the rest. In this case,
attenuating all of the signals with a simple attenuator may cause the desired stations to be
weak (snowy). You must reduce the strength of the only 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.
Audio volume is low ... The left and right audio inputs are combined for monaural. For
proper audio level, both right and left inputs must be used. If you have a mono source,
connect it to both right and left inputs using an RCA 'Y' connector.
No color on ChannelPlus channels ... You may have chosen the incorrect cable standard.
Not all televisions can accommodate the 1.25MHz frequency difference between the H and I
cable standards. See the section on programming.
is a digitally tuned video modulator that converts
UHF or Ultraband CATV channel. An internal
quartz crystal reference oscillator and
PLL circuitry ensure drift-free
performance.
selects the output frequency
(channel) using the DIP switch
on the front panel.
n n e l )
l e c h a
( s i n g
1
l a t o r l H 5 4
M o d u m o d e connected to the output via
e l P l u s
C h a n n
coax can receive the signal,
when tuned to the proper
channel.
High Headroom Amp w/IR Engine
Televisions CATV
/Ant
Up to 8 televisions
Audio inputs: Right and left
are combined for monaural.
Video input
Input
Audio L Audio R Video
pll frequency control
CCTV Camera
at front door
You may have chosen
: The RF amplifier can be
OpenHouse
1) Hook from the top
2) Swing into place
3) push button to lock
The user
Any TV
Set the DIP switches from the following guide:
-Set desired mode:
-Set channel:
-Set termination:
UHF/CATV
14/65
15/66
16/67
17/68
18/69
19/70
20/71
21/72
22/73
23/74
24/75
25/76
26/77
27/78
28/79
29/80
LED glows when
power is applied
Specifications: typical @ 25 C ± 5 C
Inputs
Video
performance
RF output
Power supply
THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES. OPERATION IS SUBJECT
TO THE FOLLOWING TWO CONDITIONS: (1) THIS DEVICE MAY NOT CAUSE HARMFUL
INTERFERENCE, AND (2) THIS DEVICE MUST ACCEPT ANY INTERFERENCE
RECEIVED, INCLUDING INTERFERENCE THAT MAY CAUSE UNDESIRED OPERATION.
Installation requirements:
FCC classifies this product under part 15 of its rules as a "television interface device".
Systems designed using television interface devices have the following legal requirements:
1) The modulated channel signal strength may not exceed 15.56dBmV at any television.
Federal Regulation 47CFR15.115(b)(1)(i).
2) If an antenna is used in the system, the modulated channel signal strength may not exceed
-51dBmV at the antenna input port.
For the Installer:
The system you design must comply with these regulations. As the installer, you are
responsible. The easiest way to be fully compliant is to use a ChannelPlus coax panel.
ChannelPlus panels have the necessary isolation from the modulator input ports to the
antenna input port and gain characteristic from the modulator input ports to the television
output ports. These features will make your modulator comply with the above requirements.
The Typical Installation
tm modules attach from the top
1
3
2
Programming the H541
UHF, CATV std, CATV irc or CATV hrc.
Find the desired UHF or CATV channel and set.
For normal operation (75
When connecting video to a local monitor using a
'Y' adaptor set for LOOP (Hi-Z).
30/81 46/102
31/82 47/103
32/83 48/104
33/84 49/105
34/85 50/106
35/86 51/107
36/87 52/108
37/88 53/109
38/89 54/110
39/90 55/111
40/91 56/112
41/92 57/113
42/93 58/114
43/94 59/115
44/100 60/116
45/101 61/117
Programming Examples
UHF channel 23, normal termination (75 )
Cable channel 116 (standard), loop through termination (Hi-Z)
UHF channel 65, normal termination (75 )
Cable channel 65 (HRC), normal termination (75 )
O O
video
video termination
(switch selectable)
>1M
audio
L & R inputs combined for monaural
differential gain
differential phase
signal/noise
standard
channel ranges
output level
IM distortion
alternate channel
model number
output current
output voltage
input power
DECLARATION OF CONFORMITY
Federal Regulation 47CFR15.115(c)(4).
shown above is fully compliant.
Telephone Master Hub (4 lines x 6 phones) Telephone Master Hub (4 lines x 6 phones)
ChannelPlus model H616
From From Expansion Expansion Telephones Telephones
Telco Telco Ports Ports
R R RJ31X RJ31X
4
T T
R R
3
T T
R R
2
T T
Out
R R
1
T T
termination) select NORM.
62/118
63/119
64/120
65/121
66/122
67/123
68/124
69/125
UHF
CATV
STD
CATV
IRC
CATV
HRC
LOOP
NORM
1 Vp-p @ 75
75 in normal mode (NORM)
in loop through mode (LOOP)
1 V rms @ 47k
4%
<4º
55 dB
UHF CATV
14-69
65-125
(excluding 95-99)
+25 dBmV (85dBuV)
-60 dBC
-45dBC @ 12MHz
350-086
300mA
15 VDC
105-125 VAC