DTC Communications VMS5000 User Manual

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VMS-5000 Frequency 2450-2500 MHz

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DTC COMMUNICATIONS INCORPORATED

How to contact DTC

For operator and troubleshooting
information, customers are encouraged to refer to
the details in this manual. For additional
clarification or instruction, or to order parts,
contact DTC.
Customer Service is available Monday through
Friday between the hours of 9:00 AM and
5:00 PM EST at:
Tel: [phone]
Fax: [phone]
Website: www.dtccom.com
Email: [e-mail]

486 Amherst Street
Nashua, New Hampshire 03063
USA

Copyright Notice

Copyright © 2003
DTC Communications, Inc. All rights
reserved. No part of this document may be
reproduced, transmitted, transcribed, stored in a re­trieval system or translated into any
language or computer language, in any form or by
any means, including but not limited to electronic,
magnetic, mechanical, optical, chemical, manual or
otherwise, without the prior written permission of
DTC Communications, Inc.

Disclaimer

The information in the document is subject to change
without notice. DTC makes no representations or
warranties with respect to the contents hereof, and
specifically disclaims any implied warranties of mer­chantability or fitness for a particular purpose. DTC
reserves the right to revise this publication and to
make changes from time to time in the content hereof
without obligation of DTC to notify any person of such
revision or changes.

Trademarks

Trademarks of DTC Communications, Inc. include:

• DTC

®

• MiniPIX

• DynaPIX
Other product names used in this manual are the
properties of their respective owners.

®

Warranty

DTC warrants its manufactured components against
defects in material and workmanship for a period of
two (2) years, commencing on the date of original
purchase.
Products manufactured by others that are approved
for use with DTC equipment are warranted for the
manufacturer’s warranty period, commencing from
the date of shipment from DTC.

FCC information

Forms can be obtained from the FCC on their web­site at:

www.fcc.gov

You can also contact the FCC using their FAX back
service at: [phone]

Additional instructions are available by telephone at:
[phone]

The filing fee form is returned to:

Federal Communications Commission
1270 Fairfield Road
Gettysburg, PA 17325-7245

OP1920187 Rev A

2

TABLE OF CONTENTS

Manual Conventions

NOTE Describes special issues you should be aware of

while using a particular function.

WARNING Calls out situations in which equipment could

be damaged or a process could be incorrectly imple­mented, but in which operator safety is not a factor.

TIP Describes application hints.

RF EXPOSURE STATEMENT

This product is NOT recommended for use in body-worn
applications. Refer to Appendix A in this manual for instruc­tion in the proper use of antennas with this device. When in
use a seperation distance of at least 20 cm must be
maintained between the supplied antenna and the body of
the user or nearby persons. At this distance the field density
will be 1.61 mW/cm2, well below the maximum permissable
exposure level of 5. mW/cm

Note: This device is for occupational use only. Occupa-

tional users are those persons who are exposed as a
consequence of their employment, provided these
persons are fully aware of and exercise control over
their exposure. See Appendix A. Antenna Safety.

FCC ID# H25VMS5000

2

.

Kit Contents ......................................................................... 4

Quick Start............................................................................ 5

Encryption ............................................................................ 6

Heat Considerations ........................................................... 7

Mounting Options ................................................................ 8

Reinstalling Heatsink .......................................................... 9

Connectors........................................................................ 10

Connections ...................................................................... 11

Basic Video Transmitter .................................................... 12

Single Power Source ......................................................... 1 3

Components ................................................................14-16

Programming ............................................................... 17-20

Specifications ...............................................................21-23

Features ............................................................................ 24

Warranty............................................................................. 25

Appendix A. Antenna Safety................................................ 26

3

Programming
C
P

r

Screwdriver

TYPICAL KIT

able with

4

ower Adapter

2W-5W Video

Transmitter

with Heatsink

RCA

RCA

Adapter

(F)

to

(F)

Antenna

(ANT-VIX)

Multi I/O Cable

for Transmitter

Power, Camera

Power and Video

Cable for
Camera Power

2.1mm to Molex

AC 100-240V
Power Adapter
with Molex Connecto

Included with your 5 Watt -2 Watt Transmitter:

• VMS-5000 Video Transmitter packaged in case with

heatsink attached

• Accessories kit containing:

• DTC programming software package

• DTC programming cable

• Camera Cable

• Dipole antenna with right angle SMA connector

• Video and Power In “Y” cable

• Four captive mounting screws

• Transmitter mounting bracket (optional)

NOTE: DTC has provided you with a “Y” cable (power

and video) terminated with an RCA connector and a
BNC adapter for your convenience.

NOTE: The dipole antenna included is not recom-

mended for normal use! This antenna enables you to
quickly set up your transmitter and ensure proper
operation. DTC highly recommends the use of
circularly polarized antennas for the best rejection of
multi-path.

QUICK START

1 Make sure that the external power source to the
transmitter is OFF.
2 Using a screwdriver, turn the channel selector to the

correct channel number.

3 Connect an antenna to the ANTENNA connector on the

module.

4 Select Hi or Lo Power using the recessed switch.
5 Connect the microphone or microphones to the MIC-1

and MIC-2 connectors on the module.

6 Connect a video source and external power (11 -16 VDC)

to the Video/Multi-I/O connector.
7 If you are using an (optional) Encryption model, choose
Encrypted (SCR) or Clear (CLR) as desired

8 Apply power to the transmitter.

Warning: Do not apply power to the transmitter until an

antenna has been connected in step 3.

7

5

6

3

4

2

5

ENCRYPTION OPTION

Top View

1.184

CLR SCR

SCRAMBLER

Screws

Screws

Side View
Heatsink,
Transmitter,

Heatsink
Transmitter
Encryption

6

and Encryption

As an option, the transmitter can be equipped with an
encryption module with a two position switch. In the CLR
(clear) mode, clear analog microwave video is transmitted. In
the SCR (scrambled) mode, the video will be scrambled
and capable of being decoded by a compatible receiver only.

Note: The scrambled transmission mode is recom-

mended. Casual scanners will not be able to decode the
signal and see what is being transmitted.

.

33

SCR position = ON, CLR position is OFF

NOTE: NEVER remove the heatsink.

NOTE: HOT SURFACE MAY CAUSE BURNS. Ensure

that transmitter is properly ventilated and allow to cool
before touching.

Heat is an enemy of electronic components so it is impera­tive that the transmitter is not allowed to exceed 80 degrees
C. With the heatsink removed, the temperature would rise to
125 degrees C or more, which would be destructive to the
internal components. At 125 degrees C, the unit would also
deliver a serious burn if touched.

Much of the heat is given off by the final output transistor,
which is the most critical component when it comes to heat
considerations. The heatsink is shipped mounted to the
transmitter with four 6-32 screws, and has two additional 4­40 screws attached from the fin side of the heatsink to the
transmitter around the final output transistor. These screws
are critical for thermal conduction from the transmitter to the
heatsink. Removing these screws is not recommended.

If you plan to mount the transmitter, be sure to orient the
heatsink fins vertically for effective heat dissipation. Use one
of the recommended mounting procedures presented on
the next page.

HEAT CONSIDERATIONS

BEST: Fins V ertical Fins Vertical Fins V ertical
A way From Wall A way From Wall Against W all

Wall

NEVER: Fins Horizontal Fins Down

GOOD: Fins Up

7

MOUNTING OPTIONS

NOTE: ALWAYS mount the transmitter with the heatsink

fins oriented vertically for proper heat dissipation.

NOTE: Leave room for the antenna and/or connectors

when selecting a mounting surface. The supplied
antenna requires more than 5-inches of space.

Option One

The transmitter and heat sink can be mounted (with cooling
fins vertical) against a heat-conductive metal surface. The
transmitter ships with four additional 6-32 pan head Phillips
mounting screws.

• Remove the four 6-32 Phillips screws from the front of the
transmitter.

• Install the four long 6-32 Phillips screws supplied. The
screws become captive.

• Pass the screws through the mounting surface and install
nuts to secure the assembly.

Option 1 Mounting Scheme

2.420

Option Two

An optional wall-mount bracket is available from DTC
Communications, which will allow simple mounting on a
variety of surfaces and enclosures.

• Loosen the four 6-32 Phillips screws from the front of the

transmitter.

• Install the bracket in the orientation shown. Retighten the

four Phillips screws. Hang bracket on wall using #10
screws.

8

1.125

1.475

Option 2 Mounting Scheme