NHRC 3+ Manual de usuario

NHRC-3+

User Guide

Software Version: 1.1

User Guide Version: 2003-Sep-16

This document contains proprietary information which is the confidential property of

NHRC LLC.

No part of this document may be used or reproduced, by any means, for any purpose,

without the expressed written consent of NHRC LLC.

No part of this document should be considered to be specifications for the proper or

correct operation of the NHRC-3+ Repeater Controller. In no way will NHRC LLC be

liable for direct or indirect damages to the controller or attached equipment.

Printed in the U.S.A.

Thank You!

Thank you for purchasing the NHRC-3+ Repeater Controller. This controller has been

designed using the very latest state-of-the-art technology. Please review this manual

carefully before putting your controller into operation.

This manual represents a very large documentation effort. Your comments are

important to us. If you find an error or find any passages that are not clearly

understandable, we would like to hear about it. Please send your comments to

[email protected].

Support for the controller is available by email or telephone. Please direct software-

related questions via email to [email protected]. Please direct hardware-related

questions via email to [email protected] . Your question(s) will be answered

promptly.

Questions of a more urgent nature can be answered by telephone support. Telephone

support is available Monday through Friday, from 6 PM until 10 PM, Eastern time.

Table of Contents

1. INTRODUCTION................................................................................................................................1

1.1 SENDING COMMANDS......................................................................................................................2

1.2 ID MESSAGES.................................................................................................................................2

1.3 “UNLOCKED MODE”.......................................................................................................................3

2. ELECTRICAL CONNECTIONS.......................................................................................................4

2.1 INPUT AND OUTPUT SIGNAL LEVELS. .............................................................................................4

2.2 J2: CONTROLLER/REPEATER INTERFACE ........................................................................................5

2.3 J1: NHRC-DAD INTERFACE..........................................................................................................5

2.4 JTS64: TS-64 INTERFACE ..............................................................................................................6

2.5 J3: EXPANSION CONNECTOR...........................................................................................................7

2.5.1 Courtesy Tone Selection............................................................................................................7

2.5.2 Digital Output Ports..................................................................................................................7

2.5.3 Power and Ground connectors..................................................................................................8

2.6 AUDIO LEVEL ADJUSTMENT ...........................................................................................................9

2.7 THE LED INDICATORS..................................................................................................................11

3. PROGRAMMING THE CONTROLLER.......................................................................................12

3.1 QUICK START ...............................................................................................................................12

3.2 INITIALIZING THE CONTROLLER....................................................................................................13

3.3 *0: UNLOCKED MODE CONTROL OPERATOR ACCESS...................................................................14

3.3.1 Set Control Operator Switches................................................................................................14

3.4 *1: SAVE SETUP............................................................................................................................15

3.4.1 Save configuration setup .........................................................................................................15

3.5 *2: PROGRAM COMMAND PREFIXES .............................................................................................16

3.5.1 Set command prefix .................................................................................................................17

3.6 *3: SET TIMERS.............................................................................................................................18

3.6.1 Program a timer......................................................................................................................19

3.7 *4: (RESERVED FOR NHRC).........................................................................................................20

3.8 *5: (RESERVED FOR NHRC).........................................................................................................20

3.9 *6: (RESERVED FOR NHRC).........................................................................................................20

3.10 *7: PROGRAM CW AND BEEP MESSAGES.....................................................................................21

3.10.1 Program a CW ID...............................................................................................................21

3.10.2 Program or play courtesy tones..........................................................................................22

3.11 *8: PLAY/RECORD VOICE TRACKS ...............................................................................................23

3.11.1 Play a message....................................................................................................................23

3.11.2 Record a message................................................................................................................24

3.12 *9: (RESERVED FOR NHRC).........................................................................................................24

3.13 **: RESET CONTROLLER...............................................................................................................24

4. CONTROL OPERATOR COMMANDS.........................................................................................25

4.1 GROUP 0 SWITCHES: REPEATER CONTROL...................................................................................26

4.2 GROUP 1 SWITCHES: MORE REPEATER CONTROL ........................................................................27

4.3 GROUP 2 SWITCHES: VOICE ID AND MISC. CONTROL..................................................................28

4.4 GROUP 3 SWITCHES: RESERVED FOR NHRC................................................................................29

4.5 GROUP 4 SWITCHES: EXPANSION OUTPUTS MODE CONTROL.......................................................30

4.6 GROUP 5 SWITCHES: EXPANSION OUTPUTS CONTROL..................................................................31

4.7 GROUP 6 SWITCHES: PROGRAMMING WRITE PROTECT ................................................................32

4.8 GROUP 7 SWITCHES: CONTROL OPERATOR GROUP ACCESS.........................................................33

5. USER COMMANDS..........................................................................................................................34

5.1 DTMF ACCESS.............................................................................................................................34

5.2 DIGITAL OUTPUT CONTROL..........................................................................................................35

5.3 LOAD SAVED SETUP .....................................................................................................................36

6. APPENDICES.....................................................................................................................................37

6.1 FACTORY DEFAULTS.....................................................................................................................37

6.1.1 Default Command Prefixes Table............................................................................................37

6.1.2 Timer Defaults Table...............................................................................................................38

6.1.3 Courtesy Tone Component Tones Table..................................................................................39

6.1.4 CW (“Morse Code”) Character Table....................................................................................40

6.2 CONTROL OPERATOR CONTROLS..................................................................................................41

6.2.1 Control Operator Group 0 (Repeater Control) Operations Table..........................................41

6.2.2 Control Operator Group 1 (Repeater Control II) Operations Table ......................................41

6.2.3 Control Operator Group 2 (Voice and Tail ID Messages) Operations Table.........................42

6.2.4 Control Operator Group 3 (Reserved for NHRC)...................................................................42

6.2.5 Control Operator Group 4 (Digital Output Mode Control) Operations Table.......................43

6.2.6 Control Operator Group 5 (Digital Output Control) Operations Table.................................43

6.2.7 Control Operator Group 6 (Programming Write Protect) Operations Table.........................44

6.2.8 Control Operator Group 7 (Control Operator Group Access) Operations Table..................44

6.3 TERMINOLOGY AND ABBREVIATIONS ...........................................................................................45

7. CIRCUIT BOARD .............................................................................................................................46

7.1 INTERCONNECTIONS .....................................................................................................................46

8. SCHEMATICS ...................................................................................................................................48

9. PARTS LIST.......................................................................................................................................51

10. NHRC LLC LIMITED WARRANTY.........................................................................................53

NHRC-3+ User Guide

1. Introduction

The NHRC-3+ Repeater Controller represents the current state-of-the-art in repeater

controller designs. It utilizes the latest available technology to provide maximum

functionality with the lowest number of parts. This results in very reliable operation.

The key features of the NHRC-3+ are:

• Recording of two real speech ID messages, one real speech time-out message, and

one real speech tail message.

• Local language support using a custom recording capability.

• Simplex repeater mode.

• Unique courtesy tones to indicate status of digital input ports.

• 4 digital outputs.

• Transmitter fan control output automatically runs fan while transmitting and for a

programmable delay after.

• DTMF, "Carrier,” “Carrier and CTCSS,” and “Carrier or CTCSS” access modes.

• Granular security features that allow tailored control operator access.

NHRC-3+ User Guide

1.1 Sending commands

All of the controller’s commands are sent by DTMF (Touch-Tone) sequences that are

received on the main repeater. DTMF tones received will be evaluated, and if correct,

executed, when either the DTMF inter-digit timer expires (2.0 seconds) or the CAS

(receiver unsquelched) signal drops; whichever comes first. This allows the controller to

be commanded even when a weak on-channel signal is holding the receiver’s squelch

open.

To send a command over the main repeater:

1. Key your transmitter.

2. Enter the DTMF command digits.

3. Unkey the transmitter.

This will cause the command to be evaluated immediately.

If you pause for more than 2.0 seconds while sending a command, the command you

entered prior to the pause will be evaluated, the command buffer will be emptied, and

you can immediately enter another command.

When a command is successfully evaluated, the controller will send a response. Each

command’s possible responses are detailed with the command description.

In general, if you do not receive a command response, then the controller did not accept

your command.

1.2 ID Messages

The controller supports two voice ID messages and one CW ID.

The voice messages are comprised of:

• an “initial” ID message, that plays when the controller has been idle for a period

longer than the ID timer, and

• a “normal” ID message, that plays during repeater use.

Each of the ID messages can be individually enabled or disabled. The CW ID will play

when a voice ID message is required but disabled. The CW ID will also play if the ID

timer expires during a user’s transmission. The controller tries to be “polite” when

identifying; if it is almost time to ID when a user unkeys, the ID is sent immediately.

NHRC-3+ User Guide

1.3 “Unlocked Mode”

All of the controller’s important programming information is protected by a special

password, the “unlock code.”

Programming the unlock code requires physical access to the controller to place a jumper

on the circuit board.

The unlock code cannot be programmed without physical access to the controller.

When the unlock code is successfully entered into the controller, the controller will

transmit “OK” in CW, and a special courtesy tone will be used to indicate the controller

is unlocked.

The controller can be locked by:

• Sending the “#” command, or

• The controller will lock itself after two minutes of inactivity.

When the controller leaves the unlocked mode:

• The courtesy tone will revert to the normal tone for the controller’s current state.

NHRC-3+ User Guide

2. Electrical Connections

This section of the User Guide describes the electrical interfaces used to connect the

controller to:

• Power

• Repeater

• Communications Specialists TS-64 CTCSS Encoder/Decoder

• NHRC-DAD digital audio delay board.

It is intended for the repeater operator to use in the planning and installation of the NHRC-

3+ Repeater Controller into a repeater system.

2.1 Input and Output Signal Levels.

Control signals into the controller are active-high signals. The repeater activity inputs

(CAS and CTCSS Decode) are buffered to allow the connection of popular radios to the

controller. Signal levels should be 0.0 to 0.5 volts for off, and 2.0 to 16.0 volts for on.

Expansion port signal levels are TTL compatible.

The controller’s PTT and FAN CONTROL outputs are “open-drain” connections to

power MOSFETs. These outputs are active-low, and when activated, will pull the control

signals to within a few ohms of ground. These outputs can sink 100 mA or so. NHRC

recommends that diodes be used to protect the MOSFETs from back-EMF if these signals

are used to drive relays.

Audio signals into the controller should be in the range of 0.2 to 2.0 volts peak-to-peak.

The controller’s transmit audio outputs are adjustable from about 0.1 volt to about 5 volts

peak-to-peak.

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