Telephonics Trulink User manual

TM115007 Rev A (04/07)
USER’S MANUAL
FOR THE
TRULINK®
WIRELESS INTERCOM
SYSTEM
April 2007
Prepared by:
TELEPHONICS CORPORATION
815 Broad Hollow Road
Farmingdale, New York 11735
USA
“THIS MANUAL INCLUDES TELEPHONICS PROPRIETY DATA AND SHALL NOT BE
DUPLICATED, USED, OR DISCLOSED, IN WHOLE OR IN PART.”

TELEPHONICS CORPORATION Document No.: PC7155H0
Revision #
TM1150007 REV A (04/07)
USE OR DISCLOSURE OF DATA CONTAINED ON THIS PAGE IS SUBJECT TO THE
RESTRICTION ON THE TITLE PAGE OF THIS DOCUMENT.
USER’S MANUAL
FOR THE
TRULINK®
WIRELESS INTERCOM
SYSTEM
Copyright ©2007 Telephonics Corporation
Publication No.: TM115007
All Rights Reserved
Printed in U.S.A.
Telephonics Corporation
815 Broad Hollow Road, Farmingdale, New York 11735
Telephone: [phone] Fax: [phone]

TELEPHONICS CORPORATION Document No.: PC7155H0
Revision #
TM1150007 REV A (04/07)
USE OR DISCLOSURE OF DATA CONTAINED ON THIS PAGE IS SUBJECT TO THE
RESTRICTION ON THE TITLE PAGE OF THIS DOCUMENT.
FCC COMPLIANCE
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.
Changes or modifications not expressly approved by the party responsible for compliance
could void the user’s authority to operate the equipment.
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates, uses and can radiate radio frequency energy and, if not installed and
used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the following
measures:
 Reorient or relocate the receiving antenna.
 Increase the separation between the equipment and receiver.
 Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
 Consult the dealer or an experienced radio/TV technician for help.

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COMMUNICATION SYSTEMS DIVISION
DOCUMENT COMPATIBILITY
PRODUCT/PROJECT REVISIONS/VERSIONS
User’s Manual Rev A
LIST OF EFFECTED PAGES
REVISION DATE REASON FOR CHANGE PAGES EFFECTED
A04/07 Original Issue

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COMMUNICATION SYSTEMS DIVISION
REVISION HISTORY SHEET
REVISION
DESCRIPTION
APPROVAL DATE
A Original

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COMMUNICATION SYSTEMS DIVISION
TABLE OF CONTENTS
PARAGRAPH TITLE PAGE
CHAPTER 1 GENERAL DESCRIPTION
1.1 INTRODUCTION.....................................................................................................1-1
1.2 DEFINITIONS AND ABBREVIATIONS ...............................................................1-1
1.2.1 Definitions of Terms Used........................................................................................1-1
1.2.2 Abbreviations and Acronyms....................................................................................1-1
1.3 TRULINK DESCRIPTION ......................................................................................1-2
1.4 NETWORK CONFIGURATION.............................................................................1-2
1.5 CAPABILITIES........................................................................................................1-2
1.6 TRULINK EQUIPMENT .........................................................................................1-3
CHAPTER 2 OPERATION
2.1 OVERVIEW..............................................................................................................2-1
2.2 PHYSICAL DESCRIPTION ....................................................................................2-1
2.3 BATTERIES .............................................................................................................2-1
2.3.1 Installing/Changing...................................................................................................2-1
2.3.2 Battery Type..............................................................................................................2-2
2.3.3 Low Battery Warning................................................................................................2-3
2.3.4 Charging the TPT......................................................................................................2-3
2.4 ANTENNA................................................................................................................2-6
2.5 HEADSET.................................................................................................................2-6
2.6 TPT STATUS AND INDICATORS.........................................................................2-6
2.6.1 Visual Indicators .......................................................................................................2-6
2.6.2 Audible Indicators.....................................................................................................2-9
2.6.3 SynVoice Phrases......................................................................................................2-9
2.7 TPT OPERATION..................................................................................................2-11
2.7.1 Introduction to TPT Man-Machine Interface..........................................................2-11
2.7.2 Power ON/OFF .......................................................................................................2-11
2.7.3 Start-Up...................................................................................................................2-11
2.7.3.1 Starting a Network ..................................................................................................2-12
2.7.3.2 Logging On to a Network........................................................................................2-12
2.8 SETTINGS..............................................................................................................2-13
2.8.1.1 CHANNEL Setting for TPT....................................................................................2-13
2.8.1.2 VOX Setting............................................................................................................2-14
2.8.1.3 KEY LOCK Setting.................................................................................................2-14
2.8.1.4 LED Setting.............................................................................................................2-14
2.8.1.5 ORDER CHANGE MASTER Setting ....................................................................2-15
2.8.1.6 ORDER SYNCHRONIZE ACCESS POINT Setting (Changing TAP Channel)...2-15
2.8.2 Talking on the Network...........................................................................................2-16
2.8.2.1 Transmission Rejection...........................................................................................2-16
2.8.2.2 Transmission Indication..........................................................................................2-16
2.8.3 Volume Adjustment ................................................................................................2-16
2.8.4 Out of Range ...........................................................................................................2-16
2.8.5 Key-Click ................................................................................................................2-17
2.8.6 Power-On BIT Failure.............................................................................................2-17
2.9 TPT CHECK OUT PROCEDURE .........................................................................2-17

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COMMUNICATION SYSTEMS DIVISION
TABLE OF CONTENTS
PARAGRAPH TITLE PAGE
CHAPTER 3 TRULINK ACCESS POINT
3.1 OVERVIEW..............................................................................................................3-1
3.2 PHYSICAL DESCRIPTION ....................................................................................3-2
3.3 TAP INSTALLATION .............................................................................................3-2
3.3.1 Mounting...................................................................................................................3-2
3.3.2 Connections...............................................................................................................3-3
3.3.2.1 Power Connector.......................................................................................................3-3
3.3.2.2 Antenna Connector....................................................................................................3-3
3.3.2.3 Audio Connectors......................................................................................................3-3
3.3.2.4 Data Connectors........................................................................................................3-4
3.4 TAP OPERATION....................................................................................................3-4
3.4.1 Power ON/OFF .........................................................................................................3-4
3.4.2 Echo Elimination Procedure......................................................................................3-4
3.4.3 ORDER SYNCHRONIZE ACCESS POINT Setting (Change TAP Channels).......3-5
3.4.4 ORDER CHANGE MASTER Setting ......................................................................3-5
3.4.5 Logging on to a Network ..........................................................................................3-6
3.4.6 Status Indications ......................................................................................................3-6
3.4.6.1 Power-On BIT Failure...............................................................................................3-6
3.5 TAP CHECK OUT PROCEDURE...........................................................................3-7
CHAPTER 4 TRULINK DUAL PORT TRANSCEIVER
4.1 OVERVIEW..............................................................................................................4-1
4.2 PHYSICAL DESCRIPTION ....................................................................................4-2
4.3 OPERATION ............................................................................................................4-2
4.3.1 ICS Interface .............................................................................................................4-3
4.3.2 Logging on to a Network ..........................................................................................4-3
4.4 DUAL PORT TRANSCEIVER CHECK OUT PROCEDURE................................4-4
CHAPTER 5 TRULINK SUPPORT STATION
5.1 OVERVIEW..............................................................................................................5-1
5.2 PHYSICAL CHARACTERISTICS..........................................................................5-1
5.3 CHARGE INDICATION..........................................................................................5-2
5.4 BIT INDICATION....................................................................................................5-3
5.5 TPT CHANNEL SELECTION.................................................................................5-3
5.6 TSS CHECK OUT PROCEDURE............................................................................5-4
APPENDIX A UNIT SPECIFICATIONS
APPENDIX B CONNECTOR DATA

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COMMUNICATION SYSTEMS DIVISION
LIST OF ILLUSTRATIONS
TITLE PAGE
Figure 1.6-1. TruLink Components..........................................................................................1-4
Figure 2.3.2-1. TruLink Portable Transceiver (TPT)..................................................................2-2
Figure 2.3.4-1. TPT Unit Dimensions (Inches)...........................................................................2-4
Figure 2.3.4-2. Battery Installation..............................................................................................2-5
Figure 3.1-1. TPT and TAP Network.......................................................................................3-1
Figure 3.3.1-1. TAP Unit Dimensions (Inches)...........................................................................3-2
Figure 3.1.1-2. TAP Controls and Connectors............................................................................3-3
Figure 4.1-1. Dual Port Transceiver.........................................................................................4-1
Figure 4.2-1. Dual Port Transceiver (DPT) Unit Dimensions..................................................4-2
Figure 5.2-1. TSS Controls and Indicator.................................................................................5-1
Figure 5.2-2. TSS Display Overlay..........................................................................................5-2
LIST OF TABLES
TITLE PAGE
Table 1.6.1 TruLink Equipment List .....................................................................................1-3
Table 2.6.1-1 LED Indications..................................................................................................2-7
Table 2.6.2-1 Audio Indications................................................................................................2-9
Table 2.3.6-1 Summary of Available SynVoice Phrases (Configuration-Dependant)............2-10
Table 3.4.6-1 Status LED Indications.......................................................................................3-6
Table 5.3-1 Charge LED Indication.......................................................................................5-3
Table 5.4-1 BIT LED Indications ..........................................................................................5-3

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COMMUNICATION SYSTEMS DIVISION
CHAPTER 1
GENERAL
1.1 INTRODUCTION
This document will introduce the operator to the many features and capabilities of TruLink®Wireless
Intercommunication System. It will provide the operator with the instructions necessary for the
proper handling and operation of TruLink and its component parts, and basic instructions for
maintaining the TruLink in proper working order.
1.2 DEFINITIONS AND ABBREVIATIONS
1.2.1 Definitions of Terms Used
The definitions of terms used in this document are as follows:
 Channel A collection of specific frequencies that define the RF link.
 Network A collection of slaves and one master that form the communication group.
 Sidetone User’s own audio heard in the user’s ear.
1.2.2 Abbreviations and Acronyms
Abbreviations and acronyms used in this document are listed below:
 BIT Built-in Test
 FHSS Frequency Hop Spread Spectrum
 LPD Low Probability Detection
 LPI Low Probability Intercept
 mAh milli-Ampere hour
 NiMH Nickel Metal Hydride
 NVG Night Vision Goggles
 PTT Push-To-Talk
 SynVoice Synthetic Voice (recorded voice messages)
 TAP TruLink Access Point Transceiver
 TPT TruLink Portable Transceiver

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COMMUNICATION SYSTEMS DIVISION
 TSS TruLink Support Station
 DPT TruLink Dual Port Transceiver
 VOX Voice Operated Keying
1.3 TRULINK DESCRIPTION
TruLink is a versatile wireless system in that it operates in various situations and environments. In
scenarios where portable intercom functionality is needed, only TruLink Portable Transceivers
(TPTs) are required.
The TruLink system is a fully duplex system that permits multiple users to speak simultaneously.
Unlike conventional walkie-talkies, TruLink users can converse among themselves without pressing
a Push to Talk button or waiting for another user to finish their transmission.
The system supports 50 channels (0-49). Depending on the system configuration, up to 31 users can
be logged on to a channel. Each channel is an independent network. A TruLink network is composed
of one TruLink unit designated as the master and all other TruLink units operating as slaves.
The TruLink Support Station (TSS) is also available with the ability to charge commercially
available NiMH batteries while still in a TPT unit, display built-in test (BIT) results, and set the
channel on up to six TPTs at a time.
Table 1.6-1 provides a list of the TruLink equipment and part numbers, embedded within the TPT,
TAP and DTP part number is a specified configuration which is factory loaded in the unit, i.e., 780-
1000-001-CF00xx-Mx, where the CF00xx-Mx is configuration specific. Please see specific
configuration addendums for details on the individual configurations.
A picture of each of the units in the TruLink system is shown in Figure 1.6-1.
1.4 NETWORK CONFIGURATION
A TruLink network is composed of one master unit and a group of slave units. The master unit is the
central point of the TruLink network. All slave-to-slave communications are routed through the
master. When a network includes a TAP or a DPT, it is typically designated the network master.
However, any TPT can be set to be the master.
1.5 CAPABILITIES
TruLink uses a modulation technique, Frequency Hop Spread Spectrum (FHSS), which provides
security improvements for Low Probability Intercept (LPI) and Low Probability Detection (LPD),
over conventional narrow-band radios that are susceptible to intercept by low-tech scanners. The
technique also provides some resistance to interference caused by undesired signals and multipath.
TruLink’s rugged construction is built to withstand extreme environments of: temperatures, sand,
dust and moisture. Rugged environments also involve high noise and poor RF conditions. TruLink
uses advanced Digital Signal Processing (DSP) technology to mitigate these effects.