Linear Microscope Magnifier cpdm 1 User Manual

PRODUCT DESCRIPTION  
TYPICAL INSTALLATION  
COMPONENT LOCATIONS  
The Model CPDM-1 Digital Modulator converts any baseband  
NTSC video and audio signal to a selected UHF or Ultraband  
CATV channel. A quartz crystal reference oscillator and PLL  
circuitry ensure drift-free performance.  
CPDM-1  
VIDEO  
SIGNAL  
MODEL CPDM-1  
MODULATOR  
POWER  
INDICATOR  
LIGHTS WHEN  
POWER IS APPLIED  
UP TO 150 FEET  
RG-59 COAX  
Digital  
Modulator  
IR INDICATOR  
PROGRAM  
The modulator can be used to convert video signals from  
Linear’s access control systems to UHF or CATV signals that  
can be viewed on a standard television set at the installation.  
LIGHTS WHEN AN  
INFRARED SIGNAL IS  
REPEATED FROM AN  
IR TARGET ACCESSORY  
BUTTON  
SELECTS THE  
MODULATOR'S  
CHANNEL  
RF  
SIGNAL  
UP TO 25 FEET  
RG-6 COAX  
ACCESS  
CONTROL  
SYSTEM  
RF OUTPUT  
CONNECTOR  
MODULATED RF OUTPUT  
CONNECTS TO  
The output channel number is selected using the PROGRAM  
button. A television connected to the modulator’s output  
will receive the signal when the television is tuned to the  
modulator’s programmed channel.  
TERMINATION  
JUMPER  
Converts the access system’s  
camera video signal to a  
UHF or CATV channel television signal  
TERMINATES VIDEO  
INPUT WITH A 75 OHM LOAD  
(REMOVE IF VIDEO SIGNAL  
IS TERMINATED AT  
A TELEVISION  
TELEVISION  
SET  
ANOTHER LOCATION)  
NOTE: Linear’s access control systems can provide video  
signals for the modulator from the system’s camera. Audio  
signals from the system’s camera are NOT available.  
Installation Instructions  
IR OUTPUT  
CONNECTOR  
CONNECTS TO  
IR EMITTER  
POWER INPUT  
CONNECTOR  
CONNECTS TO POWER  
FROM THE AC ADAPTER  
MOUNTING TEMPLATE  
TO HANG WITH CONNECTORS ON THE SIDE  
AUDIO INPUT  
CONNECTORS  
STEREO INPUTS FOR  
CONNECTION TO AN AUDIO  
SOURCE (USE BOTH JACKS  
FOR MONAURAL)  
VIDEO INPUT  
1-1/2"  
ACCESSORY  
CONNECTOR  
COMPOSITE VIDEO  
INPUT FOR CONNECTION  
TO VIDEO SOURCE  
(760) 438-7000 • FAX (760) 438-7043  
USA & Canada (800) 421-1587 & (800) 392-0123  
Toll Free FAX (800) 468-1340  
2"  
TO HANG WITH CONNECTORS ON THE TOP OR BOTTOM  
CONNECT MODULATOR VIDEO INPUT  
CONNECT MODULATOR OUPUT & POWER  
FOR THE RF SIGNAL, USE RG-6 COAX CABLE  
WITH "F" CONNECTORS ON EACH END  
PROGRAM MODULATOR CHANNEL  
VALID CHANNELS:  
DISPLAY THE MODULATOR CHANNEL  
FOR THE VIDEO SIGNAL, USE  
RG-59 COAX CABLE WITH  
BNC CONNECTORS  
UHF CHANNELS 14-46  
CATV CHANNELS 65-125  
PRESS AND HOLD  
PROGRAM BUTTON  
WHILE APPLYING POWER  
ENTER  
1
1
CONNECT RG-6 COAX TO THE  
MODULATOR'S OUTPUT CONNECTOR  
INVALID CHANNELS:  
CATV CHANNELS 95-99  
ON EACH END  
EXAMPLE FOR CHANNEL 67:  
1. PRESS PROGRAM BUTTON SIX TIMES  
2. WAIT FOR POWER INDICATOR TO LIGHT  
3. PRESS PROGRAM BUTTON SEVEN TIMES  
4. WAIT FOR POWER INDICATOR TO LIGHT  
5. DONE  
CONNECT THE OTHER END  
OF THE RG-6 COAX TO  
THE TELEVISION SET  
OR DISTRIBUTION SYSTEM  
USE THE BNC-TO-RCA  
EXAMPLE FOR CHANNEL 120:  
1. PRESS PROGRAM BUTTON ONE TIME  
CONNECT THE CABLE  
TO THE VIDEO OUTPUT  
JACK ON THE ACCESS  
CONTROL SYSTEM  
RELEASE THE PROGRAM  
BUTTON WHEN THE POWER  
INDICATOR LIGHTS  
ADAPTER (PROVIDED)  
TO CONNECT THE  
VIDEO CABLE TO THE  
MODULATOR'S  
2
2
3
WAIT  
2. WAIT FOR POWER INDICATOR TO LIGHT  
3. PRESS PROGRAM BUTTON TWO TIMES  
4. WAIT FOR POWER INDICATOR TO LIGHT  
5. PRESS PROGRAM BUTTON TEN TIMES  
(PRESSING TEN TIMES EQUALS "ZERO")  
6. WAIT FOR POWER INDICATOR TO LIGHT  
7. DONE  
INSERT THE AC ADAPTER  
PLUG INTO THE MODULATOR'S  
POWER CONNECTOR  
VIDEO INPUT  
NOTES:  
SELECT A CHANNEL THAT IS AT LEAST TWO  
ENTER  
3
CHANNELS AWAY FROM AN EXISTING CHANNEL  
THE POWER INDICATOR WILL  
BLINK TO COUNT THE PROGRAMMED  
CHANNEL NUMBER  
PLUG THE AC ADAPTER  
INTO AN UN-SWITCHED  
AC OUTLET  
(10 BLINKS EQUALS NUMBER "0")  
TO  
MODULATOR  
IF AN INVALID CHANNEL IS ENTERED,  
THE POWER LED WILL FLASH FOR ONE  
SECOND, THEN THE MODULATOR WILL  
RETURN TO THE PREVIOUS SETTING  
TROUBLESHOOTING  
NO PICTURE  
SELECTING HRC OR IRC FREQUENCIES  
SPECIFICATIONS  
LINEAR LIMITED WARRANTY  
This Linear product is warranted against defects in material and workmanship for twelve (12)  
months. The Warranty Expiration Date is labeled on the product. This warranty extends only  
to wholesale customers who buy direct from Linear or through Linear’s normal distribution  
channels. Linear does not warrant this product to consumers. Consumers should inquire from  
their selling dealer as to the nature of the dealer’s warranty, if any. There are no obligations  
or liabilities on the part of Linear Corporation for consequential damages arising out of or in  
connection with use or performance of this product or other indirect damages with respect to  
loss of property, revenue, or profit, or cost of removal, installation, or reinstallation. All implied  
warranties, including implied warranties for merchantability and implied warranties for fitness,  
are valid only until Warranty Expiration Date as labeled on the product. This Linear Corporation  
Warranty is in lieu of all other warranties express or implied.  
VIDEO  
1 V p-p @ 75  
INPUTS  
AUDIO  
1 V rms @ 47 KΩ  
4%  
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.  
DIFFERENTIAL GAIN  
DIFFERENTIAL PHASE  
SIGNAL/NOISE  
STANDARD  
VIDEO  
PERFORMANCE  
<4°  
55 dB  
CHANGING MODULATION STANDARDS  
WEAK MODULATOR UHF CHANNEL  
Most cable services use IRC frequency assignments. This is the default  
setting for the modulator. However, if the cable service uses HRC or the  
TV appears to search for the "house channels", the modulator can be  
reprogrammed to use HRC assignments.  
UHF  
CATV  
65-125  
(EXCLUDING 95-99)  
If the TV has a separate UHF input, be sure that it is connected.  
CHANNEL RANGES  
14-64  
RF OUTPUT  
HERRINGBONE INTERFERENCE ON MODULATOR CHANNEL (DIAGONAL LINES)  
OUTPUT LEVEL  
+25 dBmV (90dBuV)  
-60 dBC  
All products returned for warranty service require  
a
Return Product Authorization Number  
(RPA#). Contact Linear Technical Service at 1-800-421-1587 for an RPA# and other important  
details.  
IM DISTORTION  
You may have chosen a channel number that is not completely vacant. Distant UHF  
stations may be un-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 cable company noise.  
ALTERNATE CHANNEL  
OUTPUT CURRENT  
OUTPUT VOLTAGE  
INPUT VOLTAGE  
-45dBC @ 12 MHz  
600 mA  
FCC NOTICE !!!  
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 15.56 dBmV at any television.  
Federal Regulation 47CFR15.115(b)(1)(i).  
TO SELECT HRC FREQUENCIES  
TO SELECT IRC FREQUENCIES  
15 VDC  
POWER SUPPLY  
PHYSICAL  
105-125 VAC  
5 WATTS  
HERRINGBONE INTERFERENCE ON MANY CHANNELS  
(DISAPPEARS WHEN YOU REMOVE THE MODULATOR)  
ENTER:  
ENTER:  
POWER  
CONSUMPTION  
98  
99  
The high output of the modulator can overdrive many RF amplifiers. Reduce the RF  
output using an attentuator.  
BEFORE PROGRAMMING THE  
MODULATOR CHANNEL  
BEFORE PROGRAMMING THE  
MODULATOR CHANNEL  
HEIGHT  
WIDTH  
1.0 in (2.5 cm)  
4.6 in (11.7 cm)  
3.2 in (8.1 cm)  
9.6 oz (0.273 kg)  
2) If an antenna is used in the system, the modulated channel signal strength may not exceed  
-51dBmV at the antenna input port. Federal Regulation 47CFR15.115(c)(4).  
NO COLOR ON MODULATOR CHANNEL  
DEPTH  
WEIGHT  
You may have chosen the incorrect cable standard. Not all televisions can accomodate  
the 1.25 MHz frequency difference between H and I cable standards. See the next step.  
221695 A  
 

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