RG-59 Coax Cable with

CPDM-1

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

VIDEO

MODEL CPDM-1

CATV channel. A quartz crystal reference oscillator and PLL

SIGNAL

MODULATOR

POWER

circuitry ensure drift-free performance.

Digital

UP TO 150 FEET

INDICATOR

The modulator can be used to

convert video

signals from

LIGHTS WHEN

IR INDICATOR

RG-59 COAX

POWER IS APPLIED

PROGRAM

Modulator

Linear’s access control systems to UHF or CATV signals that

LIGHTS WHEN AN

BUTTON

UP TO 25 FEET

INFRARED SIGNAL IS

SELECTS THE

can be viewed on a standard television set at the installation.

ACCESS

REPEATED FROM AN

MODULATOR'S

RG-6 COAX

SIGNAL

IR TARGET ACCESSORY

CONTROL

CHANNEL

The output channel number is selected using the PROGRAM

SYSTEM

RF OUTPUT

Converts the access system’s

TERMINATION

button. A television connected

to the modulator’s output

CONNECTOR

camera video signal to a

MODULATED RF OUTPUT

JUMPER

will receive the signal when the

television is

tuned to the

CONNECTS TO

TERMINATES VIDEO

UHF or CATV channel television signal

TELEVISION

A TELEVISION

INPUT WITH A 75 OHM LOAD

modulator’s programmed channel.

(REMOVE IF VIDEO SIGNAL

SET

IS TERMINATED AT

Installation Instructions

NOTE: Linear’s access control systems can provide video

ANOTHER LOCATION)

signals for the modulator from the system’s camera. Audio

IR OUTPUT

signals from the system’s camera are NOT available.

MOUNTING TEMPLATE

POWER INPUT

CONNECTOR

CONNECTS TO

CONNECTOR

AUDIO INPUT

1-1/2"

VIDEO INPUT

IR EMITTER

CONNECTS TO POWER

CONNECTORS

TO HANG WITH CONNECTORS ON THE SIDE

ACCESSORY

(760) 438-7000 • FAX (760) 438-7043

FROM THE AC ADAPTER

STEREO INPUTS FOR

CONNECTOR

USA & Canada (800) 421-1587 & (800) 392-0123

CONNECTION TO AN AUDIO

COMPOSITE VIDEO

Toll Free FAX (800) 468-1340

SOURCE (USE BOTH JACKS

INPUT FOR CONNECTION

www.linearcorp.com

TO HANG WITH CONNECTORS ON THE TOP OR BOTTOM

FOR MONAURAL)

TO VIDEO SOURCE

CONNECT MODULATOR VIDEO INPUT

CONNECT MODULATOR OUPUT & POWER

PROGRAM MODULATOR CHANNEL

DISPLAY THE MODULATOR CHANNEL

FOR THE VIDEO SIGNAL, USE

FOR THE RF SIGNAL, USE RG-6 COAX CABLE

VALID CHANNELS:

WITH "F" CONNECTORS ON EACH END

UHF CHANNELS 14-46

CATV CHANNELS 65-125

ENTER

PRESS AND HOLD

BNC CONNECTORS

CONNECT RG-6 COAX TO THE

PROGRAM BUTTON

ON EACH END

MODULATOR'S OUTPUT CONNECTOR

INVALID CHANNELS:

WHILE APPLYING POWER

CATV CHANNELS 95-99

EXAMPLE FOR CHANNEL 67:

1. PRESS PROGRAM BUTTON SIX TIMES

CONNECT THE OTHER END

2. WAIT FOR POWER INDICATOR TO LIGHT

OF THE RG-6 COAX TO

3. PRESS PROGRAM BUTTON SEVEN TIMES

THE TELEVISION SET

4. WAIT FOR POWER INDICATOR TO LIGHT

5. DONE

USE THE BNC-TO-RCA

OR DISTRIBUTION SYSTEM

CONNECT THE CABLE

EXAMPLE FOR CHANNEL 120:

RELEASE THE PROGRAM

ADAPTER (PROVIDED)

1. PRESS PROGRAM BUTTON ONE TIME

TO THE VIDEO OUTPUT

WAIT

BUTTON WHEN THE POWER

TO CONNECT THE

2. WAIT FOR POWER INDICATOR TO LIGHT

JACK ON THE ACCESS

INSERT THE AC ADAPTER

INDICATOR LIGHTS

VIDEO CABLE TO THE

3. PRESS PROGRAM BUTTON TWO TIMES

CONTROL SYSTEM

MODULATOR'S

PLUG INTO THE MODULATOR'S

4. WAIT FOR POWER INDICATOR TO LIGHT

VIDEO INPUT

POWER CONNECTOR

5. PRESS PROGRAM BUTTON TEN TIMES

(PRESSING TEN TIMES EQUALS "ZERO")

6. WAIT FOR POWER INDICATOR TO LIGHT

7. DONE

NOTES:

3 ENTER

THE POWER INDICATOR WILL

SELECT A CHANNEL THAT IS AT LEAST TWO

BLINK TO COUNT THE PROGRAMMED

CHANNELS AWAY FROM AN EXISTING CHANNEL

PLUG THE AC ADAPTER

CHANNEL NUMBER

IF AN INVALID CHANNEL IS ENTERED,

(10 BLINKS EQUALS NUMBER "0")

MODULATOR

INTO AN UN-SWITCHED

THE POWER LED WILL FLASH FOR ONE

AC OUTLET

SECOND, THEN THE MODULATOR WILL

RETURN TO THE PREVIOUS SETTING

TROUBLESHOOTING

SELECTING HRC OR IRC FREQUENCIES

SPECIFICATIONS

LINEAR LIMITED WARRANTY

NO PICTURE

VIDEO

1 V p-p @ 75 Ω

This Linear product is warranted against defects in material and workmanship for twelve (12)

INPUTS

months. The Warranty Expiration Date is labeled on the product. This warranty extends only

Verify that the video source is on and is producing a video signal. Check that the TV and

AUDIO

1 V rms @ 47 KΩ

to wholesale customers who buy direct from Linear or through Linear’s normal distribution

the modulator are tuned to the same channel. For example, if the modulator is

VIDEO

DIFFERENTIAL GAIN

channels. Linear does not warrant this product to consumers. Consumers should inquire from

broadcasting on UHF channel 16, make sure the TV is on UHF 16 rather than CATV 16.

DIFFERENTIAL PHASE

<4°

their selling dealer as to the nature of the dealer’s warranty, if any. There are no obligations

UHF 16 and CATV 16 are at different frequencies.

CHANGING MODULATION STANDARDS

PERFORMANCE

or liabilities on the part of Linear Corporation for consequential damages arising out of or in

SIGNAL/NOISE

55 dB

WEAK MODULATOR UHF CHANNEL

connection with use or performance of this product or other indirect damages with respect to

Most cable services use IRC frequency assignments. This is the default

STANDARD

UHF

CATV

loss of property, revenue, or proﬁ t, or cost of removal, installation, or reinstallation. All implied

If the TV has a separate UHF input, be sure that it is connected.

setting for the modulator. However, if the cable service uses HRC or the

CHANNEL RANGES

14-64

65-125

warranties, including implied warranties for merchantability and implied warranties for ﬁ tness,

TV appears to search for the "house channels", the modulator can be

are valid only until Warranty Expiration Date as labeled on the product. This Linear Corporation

(EXCLUDING 95-99)

reprogrammed to use HRC assignments.

RF OUTPUT

Warranty is in lieu of all other warranties express or implied.

HERRINGBONE INTERFERENCE ON MODULATOR CHANNEL (DIAGONAL LINES)

OUTPUT LEVEL

+25 dBmV (90dBuV)

All products returned for warranty service require a Return Product Authorization Number

You may have chosen a channel number that is not completely vacant. Distant UHF

IM DISTORTION

-60 dBC

(RPA#). Contact Linear Technical Service at 1-800-421-1587 for an RPA# and other important

stations may be un-watchable, but will cause interference if you try to create a new

ALTERNATE CHANNEL

-45dBC @ 12 MHz

details.

FCC NOTICE !!!

channel at the same frequency. Also, cable companies often have extra signals where

OUTPUT CURRENT

600 mA

there should be none. Try moving the modulator channel to another number. You may

TO SELECT HRC FREQUENCIES

TO SELECT IRC FREQUENCIES

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two

OUTPUT VOLTAGE

15 VDC

have to add a low pass filter to remove cable company noise.

conditions: (1) This device may not cause harmful interference, and (2) this device must accept

HERRINGBONE INTERFERENCE ON MANY CHANNELS

ENTER:

POWER SUPPLY INPUT VOLTAGE

105-125 VAC

any interference received, including interference that may cause undesired operation.

POWER

5 WATTS

INSTALLATION REQUIREMENTS

(DISAPPEARS WHEN YOU REMOVE THE MODULATOR)

FCC classiﬁ es this product under Part 15 of its rules as a “television interface device”. Systems

The high output of the modulator can overdrive many RF amplifiers. Reduce the RF

BEFORE PROGRAMMING THE

CONSUMPTION

designed using television interface devices have the following legal requirements:

HEIGHT

1.0 in (2.5 cm)

1) The modulated channel signal strength may not exceed 15.56 dBmV at any television.

output using an attentuator.

MODULATOR CHANNEL

WIDTH

4.6 in (11.7 cm)

Federal Regulation 47CFR15.115(b)(1)(i).

PHYSICAL

2) If an antenna is used in the system, the modulated channel signal strength may not exceed

NO COLOR ON MODULATOR CHANNEL

DEPTH

3.2 in (8.1 cm)

-51dBmV at the antenna input port. Federal Regulation 47CFR15.115(c)(4).

WEIGHT

9.6 oz (0.273 kg)

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