GAI-Tronics IDR1000A User Manual
Pub. 43004-005C
GAI-TRONICS® CORPORATION
A HUBBELL COMPANY
IDR1000A DC Remote Desk Set
User and Installation Manual
GAI-Tronics Corporation 400 E. Wyomissing Ave. Mohnton, PA 19540 USA
610-777-1374 800-492-1212 Fax: 610-796-5954
ISIT WWW.GAI-TRONICS.COM FOR PRODUCT LITERATURE AND MANUALS
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CONFIDENTIALITY NOTICE
This manual is provided solely as an operational, installation, and maintenance guide and contains
sensitive business and technical information which is confidential and proprietary to GAI-Tronics.
GAI-Tronics retains all intellectual property and other rights in or to the information contained herein,
and such information may only be used in connection with the operation of your GAI-Tronics product or
system. This manual may not be disclosed in any form, in whole or in part, directly or indirectly, to any
third party.
COMPUTER SOFTWARE COPYRIGHTS
This product contains copyrighted computer programs stored in semiconductor memory. These programs
are copyrighted by GAI-Tronics Corporation and may not be reproduced in any form without express
written permission from GAI-Tronics.
WARRANTY
GAI-Tronics warrants for a period of one (1) year from the date of shipment, that any GAI-Tronics equipment supplied hereunder
shall be free of defects in material and workmanship, shall comply with the then-current product specifications and product
literature, and if applicable, shall be fit for the purpose specified in the agreed-upon quotation or proposal document. If (a)
Seller’s goods prove to be defective in workmanship and/or material under normal and proper usage, or unfit for the purpose
specified and agreed upon, and (b) Buyer’s claim is made within the warranty period set forth above, Buyer may return such
goods to GAI-Tronics’ nearest depot repair facility, freight prepaid, at which time they will be repaired or replaced, at Seller’s
option, without charge to Buyer. Repair or replacement shall be Buyer’s sole and exclusive remedy, and the warranty period on
any repaired or replacement equipment shall be one (1) year from the date the original equipment was shipped. In no event shall
GAI-Tronics’ warranty obligations with respect to equipment exceed 100% of the total cost of the equipment supplied hereunder.
The applicability of any such third-party warranty will be determined solely by GAI-Tronics.
Services. Any services GAI-Tronics provides hereunder, whether directly or through subcontractors, shall be performed in
accordance with the standard of care with which such services are normally provided in the industry. If the services fail to meet
the applicable industry standard, GAI-Tronics will, for a period of one (1) year from the date of completion, re-perform such
services at no cost to the Buyer. Re-performance of services shall be Buyer’s sole and exclusive remedy, and in no event shall
GAI-Tronics’ warranty obligations with respect to services exceed 100% of the total cost of services provided hereunder.
Limitations/Exclusions. The warranty on any equipment supplied hereunder is subject to Customer’s use in compliance
with applicable FCC regulations and manufacturer specifications. The warranties herein shall not apply to, and GAI-Tronics
shall not be responsible for, any damage to the goods or failure of the services supplied hereunder, to the extent caused by
accident, misuse, abuse, neglect, system design, product modification, failure to follow instructions contained in the product
manual, repair, or attempted repair by anyone not authorized by GAI-Tronics, improper installation, installation of parts that do
not conform to the quality or specifications of the original parts or accessories, damage or loss occurred during shipment, or any
unit which is not new when sold or upon which the serial number has been defaced, modified or removed. The warranty does not
extend to damage incurred by natural causes including Force Majeure. The warranty does not cover microprocessors if failure is
due to static damage or application of improper voltage.
THE WARRANTIES AND REMEDIES CONTAINED
HEREIN ARE IN LIEU OF AND EXCLUDE ALL OTHER WARRANTIES AND REMEDIES, WHETHER
EXPRESS OR IMPLIED BY OPERATION OF LAW OR OTHERWISE, INCLUDING ANY WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
Operational and Maintenance Procedures. Buyer acknowledges that any improper use, maintenance, or
modification of the equipment provided hereunder, or use of unqualified maintenance or service technicians will severely impair
the operational effectiveness of the entire communication system. Buyer hereby agrees to indemnify, defend and hold GAITronics harmless from and against any and all third party claims arising, in any manner, out of: (a) Buyer’s neglect of the
equipment; (b) Buyer’s use of technicians not authorized by GAI-Tronics to service the equipment; or (c) Buyer’s improper use
or modification of the equipment or failure to follow the operational and maintenance procedures provided with the equipment.
Limitation of Liability/Damages. In no event (even should circumstances cause the exclusive warranties and remedies
set forth in the Warranty section to fail of their essential purpose) shall either party be liable for any indirect, incidental, special
or consequential damages (including, but not limited to, loss of use, loss of anticipated profits, or damages arising from delay)
whether such claims are alleged to have arisen out of breach of warranty, breach of contract, strict or absolute liability in tort, or
other act, error or omission, or from any other cause whatsoever, or any combination of the foregoing.
02/12 Pub. 43004-005C i
Table of Contents
FOREWORD ............................................................................................................................................................... 1
SCOPE OF MANUAL .................................................................................................................................................... 1
NOMENCLATURE ........................................................................................................................................................ 1
ORDERING REPLACEMENT PARTS .............................................................................................................................. 1
SERVICE AND REPAIR ................................................................................................................................................. 1
FEATURES AND BENEFITS OF THE IDR1000A DC REMOTE DESK SET ....................................................................... 2
FCC INTERFERENCE WARNING .................................................................................................................................. 2
SAFE HANDLING OF CMOS INTEGRATED CIRCUIT DEVICES ...................................................................................... 3
PERFORMANCE SPECIFICATIONS ................................................................................................................................. 4
DESCRIPTION............................................................................................................................................................ 5
PHYSICAL DESCRIPTION ............................................................................................................................................. 5
DESK SET BUTTON PANEL ......................................................................................................................................... 5
Frequency Buttons, F1 through F4 ....................................................................................................................... 6
Volume Buttons ..................................................................................................................................................... 6
Control Button ...................................................................................................................................................... 6
Intercom Button .................................................................................................................................................... 6
Monitor Button ...................................................................................................................................................... 6
Transmit Button and LED ..................................................................................................................................... 6
INTERNAL MICROPHONE ............................................................................................................................................ 7
HANDSET ................................................................................................................................................................... 7
PROGRAMMING SWITCHES ......................................................................................................................................... 7
SWA Switch Settings ............................................................................................................................................. 7
ACCESSORIES ............................................................................................................................................................. 8
FIELD REPLACEMENT ITEMS ...................................................................................................................................... 8
OPERATION ............................................................................................................................................................... 9
OPERATIONAL DESCRIPTION ...................................................................................................................................... 9
FRONT PANEL BUTTON OPERATION ........................................................................................................................... 9
Changing Base Station Frequencies ..................................................................................................................... 9
Speaker Volume Adjustment ................................................................................................................................. 9
Intercom ................................................................................................................................................................ 9
Monitor Mode ....................................................................................................................................................... 9
Transmit Mode ...................................................................................................................................................... 9
DCLOTL (DC Line Operated Transmit Light) .................................................................................................... 10
INITIATING CALLS .................................................................................................................................................... 10
RECEIVING CALLS .................................................................................................................................................... 10
HANDSET TRANSMIT ................................................................................................................................................ 10
TRANSMIT FROM INTERNAL MICROPHONE............................................................................................................... 10
INSTALLATION ....................................................................................................................................................... 11
PLANNING THE INSTALLATION .................................................................................................................................. 11
MOUNTING ............................................................................................................................................................... 11
FCC INTERFERENCE WARNINGS .............................................................................................................................. 11
EQUIPMENT REQUIRED ............................................................................................................................................. 12
Test Equipment ................................................................................................................................................... 12
Documentation .................................................................................................................................................... 12
02/12 Pub. 43004-005C ii
Table of Contents IDR1000A DC Remote Desk Set User and Installation Manual
CABLE INSTALLATION SAFETY CONSIDERATIONS..................................................................................................... 12
TELEPHONE LINE LIGHTNING AND OVER-VOLTAGE PROTECTION............................................................................. 12
POWER CONNECTIONS.............................................................................................................................................. 13
LINE CONNECTIONS.................................................................................................................................................. 13
Line Considerations - Private Circuit ................................................................................................................. 13
Circuit Conditioning ........................................................................................................................................... 14
SETTINGS AND ADJUSTMENTS .................................................................................................................................. 14
Line Input Level Adjustment ............................................................................................................................... 15
Remote Adjustment ............................................................................................................................................. 15
Line Output Adjustment ...................................................................................................................................... 15
Handset Earpiece Volume Adjustment ................................................................................................................ 15
PROGRAMMING ........................................................................................................................................................ 16
DC Current Magnitude Table ............................................................................................................................. 17
PROGRAMMING MODE ............................................................................................................................................. 18
DESK SET REASSEMBLY ........................................................................................................................................... 18
THEORY OF OPERATION .................................................................................................................................... 19
DIGITAL CIRCUITS .................................................................................................................................................... 19
Analog-to-Digital Conversions ........................................................................................................................... 19
Serial Peripheral Interface ................................................................................................................................. 19
DC CURRENT GENERATION ..................................................................................................................................... 19
AUDIO CIRCUITS ...................................................................................................................................................... 20
SPEAKER VOLUME CONTROL ................................................................................................................................... 20
POWER SUPPLIES ...................................................................................................................................................... 20
TROUBLESHOOTING ............................................................................................................................................ 21
TROUBLESHOOTING THE IDR1000A DC REMOTE DESK SET ................................................................................... 21
FUSE REPLACEMENT ................................................................................................................................................ 22
MAIN CIRCUIT BOARD ........................................................................................................................................ 23
SCHEMATICS .......................................................................................................................................................... 25
DEFINITIONS AND ACRONYMS ......................................................................................................................... 33
02/12 Pub. 43004-005C iii
Foreword
Scope of Manual
This manual offers descriptive data and service information for the IDR1000A DC Remote Desk Set.
Service diagrams and printed circuit board details are a part of this service manual.
Nomenclature
The model number, located on the nameplate on the bottom, specifically identifies GAI-Tronics
equipment. If additional options are ordered, the option will be identified on the circuit board.
Ordering Replacement Parts
When ordering replacement parts or requesting equipment information, please include the complete
identification number. This applies to all components, kits, and chassis. If the component part number is
not known, the order should include the number of the chassis or kit of which it is a part and sufficient
description of the desired component to identify it. Order parts from:
Customer Service
GAI-Tronics Corporation
400 E. Wyomissing Ave.
Mohnton, PA 19540
US: 800-492-1212
Outside US: 610-777-1374
Service and Repair
Inoperative or malfunctioning equipment should be returned to the factory for repair. Please call
1-800-492-1212 to obtain a Return Authorization number, published repair prices, and shipping
instructions.
OTE: A purchase order or credit card number is required prior to processing non-warranty repairs.
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Foreword IDR1000A DC Remote Desk Set User and Installation Manual
Features and Benefits of the IDR1000A DC Remote Desk Set
Feature Benefit
Programmable 4-frequency
function control
Each frequency/function key can be programmed for one of 56 dc
currents.
Intercom Desk set users can communicate with each other without tying up
valuable frequency time.
Parallel transmit audio User can hear audio transmitted by another desk set.
Selectable DCTOTL Indicates transmit by a parallel user, preventing interruptions.
Selectable off-hook local speaker User can choose continuous local speaker when handset is off-hook.
Front-mounted controls and
Provides easy-to-operate functions
adjustments
Built-in internal microphone Allows for handset-free communication.
Adjustable receive input
sensitivity and transmit output
level
Allows flexibility with different radio systems and user
environments where radio output levels, line losses, and noise
factors vary.
Receive and transmit compression Automatically normalizes varying input and output levels caused by
system factors.
FCC Interference Warning
The FCC requires that manuals pertaining to Class A and Class B computing devices must contain
warnings about possible interference with local residential radio and TV reception. This warning reads
as follows:
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OTE: This equipment has been tested and found to comply with the limits for a Class A digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against
harmful interference when the equipment is operated in a commercial environment. This equipment
generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with
the instruction manual, may cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful interference in which case the user will be
required to correct the interference at his own expense.
02/12 2
IDR1000A DC Remote Desk Set User and Installation Manual Foreword
Safe Handling of CMOS Integrated Circuit Devices
Many of the integrated circuit devices used in communications equipment are of the Complementary
Metal Oxide Semiconductor (CMOS) type. Because of their high open circuit impedance, CMOS
integrated circuits are vulnerable to damage from static charges. Care must be taken handling, shipping,
and servicing them and the assemblies in which they are used.
Even though protection devices are provided in CMOS integrated circuit inputs, the protection is
effective only against overvoltage in the hundreds of volts range such as is encountered in an operating
system. In a system, circuit elements distribute static charges and load the CMOS circuits, decreasing the
chance of damage. However, CMOS circuits can be damaged by improper handling of the modules, even
in a system.
To avoid damage to circuits, observe the following handling, shipping, and servicing precautions:
1. Prior to and while servicing a circuit module, particularly after moving within the service area,
momentarily touch both hands to a bare metal, earth-grounded surface. This will discharge any static
charge which may have accumulated on the person doing the servicing.
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OTE: Wearing a conductive wrist strap will minimize static build-up during servicing.
2. Whenever possible, avoid touching any electrically conductive parts of the circuit module with your
hands.
3. Power down the unit before installing or removing the circuit module.
4. When servicing a circuit module, avoid carpeted areas, dry environments, and certain types of
clothing (silk, nylon, etc.) because they contribute to static build-up. Similarly, disconnect the test
probe prior to removing the ground lead.
5. All electrically powered test equipment should be grounded. Apply the ground lead from the test
equipment to the circuit module before connecting the test probe.
6. If a circuit module is removed from the system, it is desirable to lay it on a conductive surface (such
as a sheet of aluminum foil) which is connected to ground through 100K of resistance.
7. When soldering, be sure the soldering iron is grounded, and has a grounded tip.
8. Prior to connecting jumpers, replacing circuit components, or touching CMOS pins (if this becomes
necessary in the replacement of an integrated circuit device), be sure to discharge any static build-up
as described in procedure 1. Since voltage differences can exist across the human body, it is
recommended that only one hand be used if it is necessary to touch pins on the CMOS device and
associated board wiring.
9. When replacing a CMOS integrated circuit device, leave the device in its conductive rail container or
conductive foam until it is to be inserted into the printed circuit module.
10. All low impedance test equipment (such as pulse generators, etc.) should be connected to CMOS
device inputs after power is applied to the CMOS circuitry. Similarly, such low impedance
equipment should be disconnected before power is turned off.
11. Replacement modules shipped separately from the factory will be packaged in a conductive material.
Any modules being transported from one area to another should be wrapped in a similar material
(aluminum foil may be used). Never use non-conductive material for packaging these modules.
3 02/12
Foreword IDR1000A DC Remote Desk Set User and Installation Manual
Performance Specifications
Color ..................................................................................................................................................... Black
Physical size .................................................................................................... 7.6 W 8.9 L 4.7 H inches
Weight ................................................................................................................................................ 2.4 lbs.
Temperature range .............................................................................................................. −35º C to +70º C
Humidity ...................................................................................................... 95% at 50º C (non-condensing)
Line impedance ................................................................................................................ 600 ohms nominal
Power input .................................................................................................. 10.5–16 V dc; 1.0 A maximum
Nominal input level ........................................................................................................................ −10 dBm
Nominal output level ...................................................................................... Range –25 to 0 dBm, −10 dB
Range –15 to +5 dBm into 560 ohms
Frequency response............................................................................................ +/−3 dB from 300–3000 Hz
Hum and noise .................................................................................. Less than −45 dB below rated outputs
Audio output to speakers ................................................. 1 watt minimum with level in compression range
Audio distortion .............................................................................................................. Less than 3% THD
Maximum number of remotes .................................................................................................................. T en
DC current defaults
F1 ................................................................................................................................................. 5.5 mA
F2 ............................................................................................................................................... 12.5 mA
F3 ............................................................................................................................................... −5.5 mA
F4 ............................................................................................................................................. −12.5 mA
Monitor (Programmable) ........................................................................................................... −2.5 mA
OTE: Each button listed above can be programmed from −14 to +14 mA in 0.5 mA increments.
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Safety ................................................................................................................... Class III SELV equipment
Powered by UL-listed (E104603) and CSA certified (LR67888) ac adapter
Line Interface ................................................................................................................ FCC Part 68 Exempt
(Category II Tariff #260 service for private/leased lie application)
02/12 4
Description
Physical Description
The IDR1000A, when used in conjunction with a dc remote adapter located at the radio site, provides
remote dispatch and station control. For maximum range, the RF equipment is often located at a distant
radio tower, tall building or hilltop location apart from the location where radio calls originate and are
received. The desk set uses private leased telephone lines, or customer-owned metallic pairs that are
capable of supporting dc control currents. The unit can be placed on a flat surface or wall-mounted. All
connections are made inside the unit. The desk set is powered by a 10.5 to 16 V dc power source.
Desk Set Button Panel
Refer to the figure below for the locations of the buttons and LED on the desk set button panel.
IDR1000
DC REMOTE
F1 F2
Front View – IDR1000A Remote Desk Set Button Panel
F3 F4
VOLUME
CTL
MONITOR
TRANSMIT
IC
5 02/12
Description IDR1000A DC Remote Desk Set User and Installation Manual
Frequency Buttons, F1 through F4
The frequency buttons, labeled F1, F2, F3, and F4, are normally used to change channels on the radio,
although the use and function of these buttons depend on the capabilities of the radio in use. A frequency
button illuminates when pressed, and remains lit until a different frequency button is pressed.
Volume Buttons
Two buttons labeled VOLUME are imprinted with up and down arrows. They are used to increase and
decrease the local speaker volume and as programming function keys.
Control Button
The CTL button is used in conjunction with the VOLUME Up or VOLUME Down buttons to mute and
unmute the local speaker. It is also used during programming.
Intercom Button
The Intercom (IC) button allows communication between desk sets without transmission over the radio.
Monitor Button
The MONITOR button is used to place the radio in the monitor mode.
Transmit Button and LED
The TRANSMIT button is used to initiate voice transmissions. Pressing the TRANSMIT button places the
desk set in the transmit mode. The
TRANSMIT LED illuminates while transmitting.
02/12 6
IDR1000A DC Remote Desk Set User and Installation Manual Description
Internal Microphone
This microphone is intended for use in low noise environments. The handset must be on-hook in order to
use the microphone.
Handset
The desk set is equipped with a push-to-talk handset with a coil cord for receiving and transmitting.
Programming Switches
A set of programming switches is included on the main circuit board of the desk set. The switch setting
functions are as follows:
SWA Switch Settings
NOTE: Power must be reset to unit before changes to SWA will take effect.
Switch Determines: On Off
SWA-1 Not used. N/A N/A
SWA-2 Frequency change
commands on PTT
only
SWA-3 Not used. N/A N/A
SWA-4 Operation with
handset removed
SWA-5 Parallel audio Parallel audio is disabled. (Requires
SWA-6 Line termination
enable or disable
SWA-7 DCLOTL Enabled Disabled
SWA-8 Front panel
programming mode
enable or disable
Pressing the frequency button does not
immediately change the station
frequency. It changes only after TX or
handset PTT is pressed.
Allows the use of the internal mic and
local speaker without handset.
that DCLOTL be enabled. See SWA-7)
Disabled Enabled
Disabled Enabled
Pressing the frequency
button immediately
changes the station
frequency.
Handset must be present
for proper operation.
Parallel TX audio is
enabled.
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Description IDR1000A DC Remote Desk Set User and Installation Manual
Accessories
Description Part No.
DC Remote Adapter IDA1000A
Audio Accessory Box XAAB002A
Desk Microphone* XDM004A
Footswitch* XFS002A
Headset* (requires coiled cord) XHS003C
Headset Coiled Cord XCC004B
*These accessories require the use of the XAAB002A Audio Accessory Box.
Field Replacement Items
Description Part No.
PTT Handset with Cord, Black HANDSET BLACK
Replacement Power Supply, 120 V ac/12 V dc @ 1 amp 40419-014
Replacement PCBA 69307-002
Replacement Power Supply Adapter, European 40420-001
Replacement Power Supply Adapter, UK 40420-002
Replacement Power Supply Adapter, Australia 40420-003
Replacement Power Supply Adapter, Korea 40420-004
Speaker Assembly 61501-014
02/12 8
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