TW7201I-MS
TW7201I
DHSL Remote Control Head
Operator/Technical Manual
Datron World Communications Inc.
Manual Part No. TW7201I-MS
Release Date: January 2008
Revision: E
3030 Enterprise Court
Vista, CA 92081, U.S.A.
Phone: (760) 597-1500 Fax: (760) 597-1510
E-Mail: sales@dtwc.com
www.dtwc.com
Change Description
Date of
Revision
Revision
Letter
Description of Changes
Pages
Affected
01/08 E Change ISDN designation to DHSL. All
TW7201I-MS i
© 2003 Datron W orld Communications, Inc. (Datron )
All rights reserved.
Datron World Communications, Inc.
This manual, as well as the software described in it, is
furnished under license and may only be used or copied
in accordance with the terms of such license. The information
in this manual is furnished for informational use
only, is subject to change without notice, and should not
be construed as a commitment by Datron. Datron
assumes no responsibility or liability for any errors or
inaccuracies that may appear in this book.
Except as permitted by such license, no part of this publication
may be reproduced, stored in a retrieval system,
or transmitted, in any form or by any means, electronic,
mechanical, recording, or otherwise without the prior
written permission of Datron.
Software License Agreement and Warranty
This software is licensed to the user (licensee) under the
express terms and conditions of Datron’s software
licensing policies and agreement as outlined below. By
receiving and installing this software package the user
(licensee) has indicated acceptance of the terms and conditions
of this agreement presented herewith.
As used in this document, the term “Software” shall
mean the application or control software in machine readable
format and the hardware protection key, along with any or all
supporting documentation, as well as all updated or enhanced
versions of the program supplied to the user at later date(s).
This software license does not include source code, and there
fore, no license is granted with respect to source code of any
kind utilized directly or indirectly in any Datron or Datron
supplied third party product. Note, in some cases, covered
software may be included in Datron products in RAM or
ROM, and/or forms of machine readable code, not readily
accessible to the user or licensee.
In consideration of the terms and conditions of this
agreement, Datron grants the user a non-exclusive, nontransferable license to install and operate one copy of the program.
Licensee agrees not to attempt, aid, authorize, or direct any
effort, either directly or indirectly to reverse engineer or
reverse compile the Software. Licensee further agrees they or
their agents are not authorized to
make derivative versions or changes to the Software.
Title to and ownership of the Software shall at all times
remain with Datron and/or its licensors. Further, no
license is granted to copy or reproduce in any form whatsoever
the Software supplied without the express written permission
of Datron, prior to any such contemplated action.
Datron may terminate this agreement and discontinue
further warranty coverage at any time due to failure to
comply with the terms and conditions of this agreement.
In such an event, Datron will provide the user
with written notice of such a “failure-to-comply” and the
user will have 10 days to demonstrate that a remedy has
been implemented. If the user fails to perform, the
agreement will be terminated by further written notice
from Datron. Upon termination, the user shall immediately
return all original Software, documentation, and
any copies of each to Datron.
This Software is licensed “AS IS” and Datron provides a warranty that covers the media upon which the Software is embedded for a period of 30 days from receipt of the product. Under
this warranty policy Datron’s sole obligation shall be to
replace or repair, at Datron’ s discretion, any such media that in
Datron’s opinion proves defective.
The user is obligated to provide Datron with a detailed
description of possible defects along with sample material
such that Datron can reproduce the identified defects.
By receipt and use, user (licensee) acknowledges that
certain software developed or distributed by Datron is
controlled by one or more governmental agencies. The
user (licensee) herewith acknowledges they will take all
necessary actions to comply with applicable regulations
concerning the use of licensed software. Further, Datron
is under no obligation to supply source code or documentation
of its software for any reason.
Datron makes no representation, express or implied, with
respect to any Software licensed under this document as to its
fitness for any particular purpose or intended use.
Furthermore, Datron shall have no liability under this
agreement for any incidental, special, or consequential
damages arising out of the use of any supplied software
programs. Datron reserves the right to make periodic
changes in it’s software for any purpose without any
obligation to notify users.
One Year Limited Warranty and Remedies
-
Datron warrants that its equipment is free from defects in
design, materials, and workmanship for a period of 12
months from the date of installation of the equipment,
but in no event later than 15 months from the date of
shipment. If the equipment does not provide satisfactory
service due to defects covered by this warranty, Datron
will, at its option, replace or repair the equipment free of
charge.
Should it be impractical to return the equipment for
repair, Datron will provide replacements for defective
parts contained in the equipment for a period of 12
months from the date of installation of the equipment,
but in no event later than 15 months from the date of
shipment.
This warranty is limited to the original purchaser and is
not transferable. Repair service performed by Datron is
warranted for the balance of the original warranty or 90
days, whichever is longer.
Exclusive Warranty: There are no other warranties
beyond the warranty as contained herein. No agent,
employee, or representative of Datron has any authority
to bind Datron to any affirmation, representation, or warranty
concerning the equipment or its parts that is not in
conformity with the warranties contained herein.
EXCEPT AS EXPRESSLY SET FORTH ABOVE, NO
OTHER WARRANTIES, EITHER EXPRESS OR
IMPLIED, ARE MADE WITH RESPECT TO THE
EQUIPMENT OR THE PARTS CONTAINED
TW7201I-MS iii
THEREIN, INCLUDING BUT NOT LIMITED TO
THE IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE, AND
DATRON EXPRESSLY DISCLAIMS ALL WARRANTIES
NOT ST ATED HEREIN.
Limitations of Warranty: This warranty does not
cover:
Physical damage to the equipment or its parts that does
not involve defects in design, material, or workmanship,
including damage by impact, liquids, temperature, or
gases.
Damage to the equipment or its parts caused by lightning,
static discharge, voltage transients, or application
of incorrect supply voltages.
Defects or failures caused by unauthorized attempts to
repair or modify the equipment.
Defects or failures caused by Buyer abuse or misuse.
Return of Equipment - Domestic: To obtain performance
of any obligation under this warranty, the equipment
must be returned freight prepaid to the Technical
Support Services. Datron Worl d Communications Inc.,
3030 Enterprise Court, Vista, California 92081. The
equipment must be packed securely. Datron shall not be
responsible for any damage incurred in transit. A letter
containing the following information must be included
with the equipment.
a. Model, serial number, and date of installation.
b. Name of dealer or supplier of the equipment.
c. Detailed explanation of problem.
d. Return shipping instructions.
e. Telephone or fax number where Buyer may be contacted.
Datron will return the equipment prepaid by United Parcel
Service, Parcel Post, or truck. If alternate shipping is
specified by Buyer, freight charges will be made collect.
Return of Equipment - International: Contact Datron or
your local Representative for specific instructions. Do
not return equipment without authorization. It is usually
not possible to clear equipment through U.S. Customs
without the correct documentation. If equipment is
returned without authorization, Buyer is responsible for
all taxes, customs duties, clearance charges, and other
associated costs.
Parts Replacement: The following instructions for the
supply of replacement parts must be followed:
a. Return the parts prepaid to “Parts Replacement”
Datron W orld Communications Inc., 3030 Enterprise
Court, Vista, California 92081; and
b. Include a letter with the following information:
1. Part number
2. Serial number and model of equipment
3. Date of installation
Parts returned without this information will not be
replaced. In the event of a dispute over the age of the
replacement part, components date-coded over 24
months previously will be considered out of warranty.
Remedies: Buyer’s sole remedies and the entire liability
of Datron are set forth above. In no event will Datron be
liable to Buyer or any other person for any damages,
including any incidental or consequential damages,
expenses, lost profits, lost savings, or other damages
arising out of use of or inability to use the equipment.
1/95
Safety Considerations
This product and manual must be thoroughly understood
before attempting installation and operation. To do so
without proper knowledge can result in equipment failure
and bodily injury.
Caution: Before applying ac power, be sure that the
equipment has be properly configured for the available
line voltage. Attempted operation at the wrong voltage
can result in damage and voids the warranty. See the
manuals section on installation. DO NOT operate equipment
with cover removed.
Earth Ground: All Datron products are supplied with a
standard, 3-wire, grounded ac plug. DO NOT attempt to
disable the ground terminal by using 2-wire adapters of
any type. Any disconnection of the equipment ground
causes a potential shock hazard that could result in personal
injury. DO NOT operate any equipment until a suitable ground
has been established. Consult the manual section on grounding.
Servicing: Trained personnel should only carry out servicing.
To avoid electric shock, DO NOT open the case
unless qualified to do so.
Various measurements and adjustments described in this manual are performed in ac power applied and the protective
covers removed. Capacitors (particularly the
large power supply electrolytics) can remain charged for
a considerable time after the unit has been shut off. Use
particular care when working around them, as a short circuit
can release sufficient ener gy to cause damage to the equipment
and possible injury.
To protect against fire hazard, always replace line fuses
with ones of the same current rating and type (normal
delay, slow-blow, etc.). DO NOT use higher value
replacements in an attempt to prevent fuse failure. If
fuses are failing repeatedly this indicates a probable
defect in the equipment that needs attention.
Use only genuine Datron factory parts for full performance
and safety of this product.
Made in the USA
iv TW7201I-MS
CONTENTS
Chapter 1: Introduction
1.1 The TW7201I DHSL Remote Control Head. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1.2 Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
1.3 TW7000 Series Family . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
1.4 Manual Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
1.5 Referenced Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Chapter 2: Installation
2.1 Installation Types. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.2 The TW7000 Transceiver and 7000RI Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.3 Audio Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Table 2-1 Audio Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Figure 2-1 TW7201I Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Figure 2-2 Microphone Jack J9 and J10 Pinouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Table 2-2 Microphone Connector (J9) and (J10) Pin Assignments . . . . . . . . . . . . . . . . . . . . . 2-3
2.4 Rear Panel Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Figure 2-3 TW7201I Rear Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Figure 2-4 AC Voltage Selector Card. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Figure 2-5 DB9 Remote Connector Pinout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Figure 2-6 DB Accessory Connector Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Table 2-3 ACC 1 Accessory Connector Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Table 2-4 ACC 2 Accessory Connector Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Chapter 3: Operation
3.1 Powering the TW7201I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Figure 3-1 TW7000 Front Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
3.2 Using Knobs, Buttons and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
3.3 VSWR Feature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
3.4 Using Menus to Change Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Table 3-1 Alpha Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
Table 3-2 ALE Submenu - ALPHA 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13
3.5 Programming Channels and Frequencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18
3.6 Scanning (for TA/TC only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20
3.7 Placing an ALE Call . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22
3.8 Placing a TransAdapt, Transcall or Selcall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23
3.9 Activating the Noise Blanker. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26
3.10 Activating Encryption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26
3.11 Activating Voice Enhancement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26
TW7201I-MS v
Chapter 4: Theory of Operation
4.1 TW7201I Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Figure 4-1 TW7201I Remote System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4.2 Front panel Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Figure 4-2 Front Panel Assembly Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Table 4-1 Jumper Block J11 Default Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
4.3 Rear Panel Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Figure 4-3 Power Supply/Interface Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Figure 4-4 DHSL Modem Board Block Diagram (Remote Head). . . . . . . . . . . . . . . . . . . . . . . 4-9
4.4 7000RI Option. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
Figure 4-5 DHSL Modem Board Block Diagram (Transceiver) . . . . . . . . . . . . . . . . . . . . . . . 4-12
Chapter 5: Testing and Troubleshooting
Table 5-1 TW7201I Subassemblies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
5.1 Test Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
5.2 Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
5.3 Component Locations, Pin Assignments, Schematics and Part Lists . . . . . . . . . . . 5-6
Table 5-2 Front Panel Processor J1 Pin Assignments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Table 5-3 Front Panel Processor J3 Pin Assignments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
Table 5-4 Front Panel Processor J4 Pin Assignments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
Table 5-5 Front Panel Processor J5 Pin Assignments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
Table 5-6 Front Panel Processor J6 Pin Assignments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
Table 5-7 Front Panel Processor J7 Pin Assignments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9
Table 5-8 Front Panel Processor J8 Pin Assignments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9
Table 5-9 Front Panel Processor J9 and J10 Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . 5-9
Figure 5-1 Front Panel Processor Board Component Locations (738207 Rev. J) . . . . . . . . . . 5-10
Figure 5-2 Front Panel Processor Board Schematic Diagram (994359 Rev. E). . . . . . . . . . . . 5-11
Table 5-10 Front Panel Processor Board Parts List (001-03001 Rev. E) . . . . . . . . . . . . . . . . . 5-13
Table 5-11 DHSL Modem J1 Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19
Table 5-12 DHSL Modem J2 Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-20
Table 5-13 DHSL Modem J3 Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-20
Table 5-14 DHSL Modem J4 Pin Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-20
Table 5-15 DHSL Modem J11 Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-21
Table 5-16 DHSL Modem J12 Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-22
Table 5-17 DHSL Modem Board Jumper Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-23
Figure 5-3 DHSL Modem Board Component Locations (738248 Rev. E) . . . . . . . . . . . . . . . 5-24
Figure 5-4 DHSL Modem Board Schematic Diagram (994184 Rev. E) . . . . . . . . . . . . . . . . . 5-25
Table 5-18 DHSL Modem Board Parts List (002-03100 Rev. L). . . . . . . . . . . . . . . . . . . . . . . 5-27
Table 5-19 Power Supply/Interface Board J1 Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . 5-33
Table 5-20 Power Supply/Interface Board J2 Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . 5-33
Table 5-21 Power Supply/Interface Board J3 Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . 5-33
Table 5-22 Power Supply/Interface Board J5 Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . 5-34
Table 5-23 Power Supply /Interface Board J6 Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . 5-35
Table 5-24 Power Supply /Interface Board J7 Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . 5-36
Table 5-25 Power Supply /Interface Board J8 Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . 5-37
Table 5-26 Power Supply /Interface Board J9 Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . 5-37
Table 5-27 Power Supply /Interface Board J10 Pin Assignments . . . . . . . . . . . . . . . . . . . . . . 5-37
Figure 5-5 Power Supply/Interface Board Component Locations (738277 Rev. B) . . . . . . . . 5-38
Figure 5-6 Power Supply/Interface Board Schematic Diagram (994222 Rev. D) . . . . . . . . . . 5-39
Table 5-28 Power Supply/Interface Board Parts List (003-03005 Rev. G) . . . . . . . . . . . . . . . 5-41
vi TW7201I-MS
Figure 5-7 Switching Board Component Locations (738195 Rev. B) . . . . . . . . . . . . . . . . . . . 5-44
Figure 5-8 Switching Board Schematic Diagram (994149 Rev. A). . . . . . . . . . . . . . . . . . . . . 5-45
Table 5-29 Switch Board Parts List (001-00110 Rev. A1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-47
TW7201I-MS vii
CHAPTER 1
INTRODUCTION
1.1 The TW7201I DHSL Remote Control Head
The TW7201I is the Datron High Speed Link (DHSL) remote control unit that
uses a high speed modem to provide remote operation of the TW7000 series
transceivers configured with the 7000RI option over a two-wire line. The
TW7201I includes a DHSL modem that communicates with its DHSL
counterpart (7000RI modem option) in the TW7000(F) transceiver.
The TW7201I is microprocessor controlled and features one full-duplex
digitized voice channel and two full-duplex data channels.
The TW7201I remote control head includes the following features:
• Full remote control and operation of TW7000 series transceivers
• Dual front panel microphone jacks
• Front panel LCD
• Alphanumeric keypad and function buttons
• Dual rear panel accessory connectors
• AC and DC power source support
TW7201I-MS 1-1
1: Introduction
1.2 Specifications
Note: All specifications subject to change without notice or obligation.
Characteristic Description
General
Transmission type High speed modem and audio.
Modem channels 2 data channels, 1 voice channel.
Range 2 km (maximum).
Control Controls TW7000 series HF transceivers with
Display Front panel LCD.
Audio Internal loudspeaker (2W output).
Input power
AC
DC
7000RI option.
120 VAC or 240 VAC.
13.8 Vdc.
Protection Fused for AC and DC, overvoltage and reverse
polarity.
Modem
Format High speed slave modem (MC145426) in remote
head, master modem (MC145422) in transceiver.
Data 256 kHz modified differential phase shift burst.
Channels
voice
One full-duplex 64 kb/second digitized voice
channel.
data
Two full-duplex 9600 baud data channels.
Remote interface 2-wire (maximum distance 2 km).
Physical
Size (HWD) 10.16 cm x 33.02 cm x 15.24 cm.
(4 in. x 13 in. x 6 in.).
Weight 3.175 kg (7 lbs.).
Environmental
Temperature
operating
storage
–30° C to +60° C.
–40° C to +70° C.
1-2 TW7201I-MS
1.3 TW7000 Series Family
The TW7000 series is a complete family of RF communications equipment
that includes the following components:
• Transceivers (TW7000, TW7000F)
• Internal options
• External options
• Accessories
• Remote control devices
The TW7201I modem operates in conjunction with an DHSL modem (7000RI
option) installed in a TW7000 series transceiver. The two modems connect
through a 2-wire remote line.
1.3.1
Front Panel
Control
When using transceivers such as the TW7000 that include front panel
controls, the transceiver controls are the master. In this case, the transceiver
controls are live from the transceiver and TW7201I. For security and limited
operation applications, the key functions can be inhibited at either the
transceiver or TW7201I control panels. Two variations of the TW7000 series
transceivers, the TW7000E and TW7000C, do not include control panels.
1: Introduction
1.3.2
7000RI Option The TW7000 series transceiver must have a 7000RI option installed to
communicate with the TW7201I remote head. The 7000RI option includes the
DHSL Modem board, and a dual UART chip and two jumpers that must be
installed on the transceiver Processor board.
1.3.3
TW7201I
DHSL Remote
Control
Voice Channel The TW7201I provides one voice channel. The voice audio is digitized before
Data Channels The TW7201I provides two data channels, using one channel for
The TW7201I includes a DHSL Modem board that communicates with the
DHSL Modem board (7000RI option) installed in the transceiver through a
remote line using a high speed data packet format. The information is
compressed and sent between the master (transceiver) and slave (remote
head). Line loss and balance variations do not effect the system performance.
The DHSL modem requires wide bandwidth so it does not work over standard
analog telephone channel. This system is ideal for distances of 1.6
or less (2
being sent over the modem link. This provides excellent voice quality even
with poor line conditions and requires no adjustment even when line
conditions change.
communications between the transceiver and the remote head. The other data
channel is a spare, normally used by accessory equipment or other special
functions. The second channel is typically used for an external computer
km max.) over a 2-wire pair.
km (1 mile)
TW7201I-MS 1-3
1: Introduction
control device. This configuration allows for full computer control of the
transceiver at the remote control head. Both channels are high speed data
channels with a 9600 N81 standard interface.
Operating Modes The TW7201I is designed to be a high speed modem link to the transceiver for
both voice and data. The high speed characteristic allows for a wide variety of
voice and data capabilities. The TW7201I supports all standard operating
modes including USB, LSB, CW, PCS, and AME.
1.3.4
Options and
Accessories
The TW7201I supports the following accessories:
• PM palm microphone for voice operation
• DM desk microphone for voice operation
• KEY CW key
• EPL lightweight headset
• TW7201MM mobile mounting kit
• TW7201RM rack mounting kit
The TW7201I is supported with the following optional maintenance and
service items:
• TW7201I-TK tool kit
• TW7201I-MRK module repair kit
• TW7201I-MK module kit
• TW7201I-PSK spare parts kit
1.3.5
Accessory
Equipment
The TW7201I supports the following optional external devices through the
rear panel accessory connectors:
• Telephone couplers
• Data terminals
• Voice encryptors
• External speaker
1.4 Manual Conventions
Bold type denotes all items that appear in the display and for any button, knob
or switch on the front panel. For example:
• Press ALPHA 17, then press E.
• Press 1 to set the status to OFF.
1-4 TW7201I-MS
1.5 Referenced Manuals
• RC2-MSOP Radio Control 2 Operator Manual
• 7000ENCR-MSOP 7000-Series High-level Encryption Operator Manual
• 7000ALE-MSOP 7000ALE Radio Control Program Operator Manual
1: Introduction
TW7201I-MS 1-5
CHAPTER 2
INSTALLATION
2.1 Installation Types
The TW7201I can be installed in the following configurations:
• Desktop
• Mobile
• Rack
The desktop model is the standard configuration for the TW7201I and requires
no additional mounting hardware.
For vehicle and marine applications, the TW7201I can be ordered with mobile
mounting brackets (TW7201MM) that are designed for either top or bottom
mounting.
For rack mount applications, the TW7201I can be ordered with the rack mount
kit (TW7201RM).
For local operation, the TW7201I requires a 2-wire line between the remote
head and the transceiver. The line connections are transformer-coupled at each
end. The line length is limited by the time delay of the high speed packets as
they travel from each end. Datron offers the C992307 10m (33 ft.) DHSL
interface cable.
Datron offers an unterminated remote cable (C992309) for connecting to
pre-existing wiring system. T wo C992309 cables would be required: one for the
transceiver; the other for the TW7201I.
2.2 The TW7000 Transceiver and 7000RI Option
To use the TW7201I with a TW7000 series transceiver, the transceiver must
have the 7000RI option installed. This option includes the DHSL Modem
board, a serial dual UART IC and jumpers that are installed on the transceiver
Processor board. The remote system uses a 2-wire cable between the
transceiver and the remote head.
TW7201I-MS 2-1
2: Installation
A
2.3 Audio Connections
The TW7201I front panel hosts two 6-pin microphone connectors. These two
connectors are wired in parallel and are compatible with various audio
accessories. The input impedance is 150 ohms (nominal). The TW7201I
supports most dynamic, ceramic and magnetic microphones.
Part Number Description
DM Dynamic desk microphone
PM Heavy-duty hand microphone
HP Headphones, twin
EP Headphones
EPL Lightweight headphones
KEY CW key (Morse key)
All Datron audio accessories have the correct mating connector . Datron of fers
mating adapters for other low-level audio accessories.
Table 2-1 Audio Devices
OPTIONS
STATUS
PRICALLSCAN TUNE
POWER
AUDIO CONNECTORS
OFF
Figure 2-1 TW7201I Front Panel
5
4
3
6
1
2
6
5
1
2
3
Figure 2-2 Microphone Jack J9 and J10 Pinouts
B
1
C
J
K
4
L
S
T
7
U
/
\
.
+
G
D
H
E
23
I
F
M
P
Q
N
5
6
R
O
Y
V
Z
W
8
9
-
X
S
P
0
C
4
E
F
CLAR (PUSH)
2-2 TW7201I-MS
Table 2-2 Microphone Connector (J9) and (J10) Pin Assignments
Pin Description Pin Description
1 GND 4 TX AUDIO
2 RX AUDIO 5 CW
3 PTT 6 +12 Vdc
2.4 Rear Panel Description
The rear panel provides the AC and DC power connections and fuse blocks,
accessory connectors and the remote line connector to the transceiver.
2: Installation
13.8VDC
DC INPUT
AC INPUT
Fuse
Fuse
Pull
Pull
ACCESSORY 1
ACCESSORY 2
FUSE
GND
REMOTE
Figure 2-3 TW7201I Rear Panel
2.4.1
Input Power The TW7201I can accept input power from either an AC or DC power source.
AC Power The rear panel includes a standard IEC AC power connector that can be
configured for 120 or 240 VAC. A standard AC power cable is included with
the TW7201I (769004 IEC320 to NEMA 5-15). The AC connector includes a
fuse holder and the AC voltage selector card. The AC fuse should be a 1A
slow blow 3AG fuse (550014).
The AC power voltage selector card must be configured for the intended
power source. The AC power is preconfigured for the AC power level in the
area where it is shipped.
CAUTION: Always verify the correct AC power setting on the AC
voltage selector card before applying AC power.
To reconfigure the AC power setting:
1. Move the clear plastic fuse cover to the left so that it covers the AC power
connector. The AC voltage selector card is located just below the fuse.
The current AC power setting is visible on the voltage selector card.
TW7201I-MS 2-3
2: Installation
2. Pull the fuse ejector tab toward you and to the left. This forces the fuse
partially out of the fuse holder.
3. Remove the fuse.
4. Using a long nose pliers, remove the AC voltage selector card.
5. Orient the card to the correct AC level to be used. The voltage selector
card has two numbers on each side corresponding to AC power levels,
100 and 220 on one side, and 120 and 240 on the other side. To get the
correct setting, hold the voltage selector card toward the AC
connector/fuse holder, with the correct setting facing you as shown in
Figure 2-4 below. In this example the TW7201I is configured for
220 VAC.
Fuse
Fuse
Pull
Pull
Figure 2-4 AC Voltage Selector Card
6. Insert the card below the fuse holder, install the fuse and push the fuse
extractor handle back into the fuse holder.
7. Slide the fuse cover to the right to cover the fuse holder. Install the AC
power cable into the AC power connector.
DC Power The TW7201I rear panel also includes a DC power connector and fuse holder.
The DC input circuitry is designed for 13.8 Vdc with a typical current
requirement of approximately 300
Vdc to 16 Vdc. An optional 2m (6.5 ft.) 3-conductor DC power cable is
is 12
mA. The recommended DC voltage range
available (C991829). One end of the DC power cable is left without a plug for
convenient connection to a variety of DC power sources.
The DC fuseholder should include a 3A 250VAC fast 3AG fuse (550003) and
a spare fuse of the same rating. To access the fuse, push to the left on the
fuseholder cover and pull out.
2.4.2
Remote
Connector
The TW7201I communicates with the TW7000 series transceiver through a
10m (33 ft.) remote cable (C992307). The remote cable connects to the
TW7201I through the rear panel 9-pin D Submini socket. The FSK remote
head uses the same remote cable.
2-4 TW7201I-MS
2: Installation
The 2-wire DHSL system uses the DHSL1 and DHSL2 lines to communicate
between the remote head and the transceiver. The following table provides the
pin assignments for the remote connector.
Note: Datron offers an unterminated remote cable (C992309) for connecting
to pre-existing wiring system. Two C992309 cables would be required: one for
the transceiver; the other for the TW7201I.
Note: The C992307 remote cable is actual ly a 9-conductor cable. The DHSL
modem in the remote head uses only two of the nine wires to communicate
with the transceiver DHSL modem.
69
2.4.3
Accessory
Connectors
1
Figure 2-5 DB9 Remote Connector Pinout
Pin Signal Pin Signal
5
1 GND 6 DHSL2
2 Not used 7 REMRXA (not used)
3 Not used 8 REMTXA (not used)
4 Not used 9 Not used
5 DHSL1
The rear panel hosts two DB25 accessory connectors ACC 1 and ACC 2 (refer
to T able 2-3 on page 2-7 and Table 2-4 on page 2-8) that support the following
accessories:
• External encryption devices
• Audio interface devices
• Data terminal equipment (DTE)
• External speaker
Encryption
Devices
Audio Interface
Devices
An external encryption device can connect to either connector ACC 1 or
ACC 2.
Audio interface devices such as Datron’ s ACU1000 and ACU-T can use either
accessory connector.
DTEs The TW7201I can interface with data terminal equipment (computers)
through accessory connector
ACC 1. The TW7201I includes two data
channels—the main channel provides full transceiver control; the spare
channel is designed to interface with a computer (DTE) (data transmission
only) so it can use RC2 or DatronLINK to operate and control the TW7000.
TW7201I-MS 2-5
2: Installation
Note: DatronLINK is a proprietary data network management and
messaging program designed to automate message file transfers over radio
links, LANs and through the Internet.
External Speaker The TW7201I includes a standard speaker mounted on the inside of the front
panel. An external loudspeaker can be added to the transceiver through the
ACC 2 accessory connector.
Note: If using the optional external speaker, turn off the internal speaker
(push the SPKR button; the status icon displayed on the LCD above the SPKR
button should be set to OFF).
2-6 TW7201I-MS
14 25
2: Installation
1
Figure 2-6 DB Accessory Connector Pinout
Table 2-3 ACC 1 Accessory Connector Pin Assignments
Pin Signal Description
13
1 GND Chassis ground
2 COM1RXD Receive data line for DTE connection
3 NC No connection
4 COM1TXD Transmit data line for DTE connection
5 NC No connection
6 BALRXA1 Balanced line receive audio 1
7 BALRXA2 Balanced line receive audio 2
8 BALTXA1 Balanced line transmit audio 1
9 BALTXA2 Balanced line transmit audio 2
10 EXAUDPTT\ External audio PTT (active low)
11 NC No connection
12 NC No connection
13 +12V ACC +12 Vdc supply for the accessory devices
14 EXTCWKEY External CW key
15 NC No connection
16 DCD Not used
17 FPWSP1 Front panel spare port (not used)
18 NC No connection
19 NC No connection
20 NC No connection
21 NC No connection
22 NC No connection
23 NC No connection
24 NC No connection
25 NC No connection
TW7201I-MS 2-7
2: Installation
Table 2-4 ACC 2 Accessory Connector Pin Assignments
Pin Signal Description
1 GND Chassis ground
2 GND Chassis ground
3 PWRON\ Remote power on/off (active low)
4 NC No connection
5 NC No connection
6 BALRXA1 Balanced line receive audio 1
7 BALRXA2 Balanced line receive audio 2
8 BALTXA1 Balanced line transmit audio 1
9 BALTXA2 Balanced line transmit audio 2
10 EXAUDPTT\ External audio PTT (active low)
11 NC No connection
12 NC No connection
13 +12V ACC +12 Vdc supply for the accessory devices
14 GND Chassis ground
15 NC No connection
16 DCD Not used
17 NC No connection
18 NC No connection
19 NC No connection
20 TC/SCALM Transcall/Secall alarm
21 NC No connection
22 EXTSPKR External speaker audio
23 NC No connection
24 +12V ACC +12 Vdc supply for the accessory devices
25 +12V ACC +12 Vdc supply for the accessory devices
2-8 TW7201I-MS
CHAPTER 3
OPERATION
The procedures discussed in this chapter use the TW7201I front panel to
program the TW7000 series transceiver.
Note: The TW7000 transceiver must be powered on to program the
transceiver from the TW7201I.
To program the transceiver from a computer, refer to the Radio Control 2
Operator Manual (RC2-MSOP); the 7000ALE option must be installed in the
radio.
3.1 Powering the TW7201I
To turn the TW7201I and TW7000 (or TW7000F) on, turn the PWR OFF/VOL
knob clockwise until an audible click is heard. Power is off in the full
counterclockwise position. When the transceiver is turned on, the LCD
displays the software version level.
Display: TW7000
VER 701xx (where xx is the version level)
The BITE system runs automatically and verifies that the boards are
functional.
Display: TW7000 OK
MODULES
The BITE system searches for any installed options. The LCD displays the
following information:
• Options
• Current channel number (upper left corner)
• Channel frequency (upper center)
• Clarifier offset (if any, below the frequency).
TW7201I-MS 3-1
3: Operation
Channe
E
l
Rx
Atten-
uator
Call
xterna
RF
Amplifier
Squelch
Tune
Priority
Alpha
Speaker
Send
l
Internal
Options
RF Power
Level
Scan
Group
Scan
Mode
Select
Figure 3-1 TW7000 Front Panel
Keypad
Power/
Volume
Clarifier
3.2 Using Knobs, Buttons and Indicators
Front panel knobs, buttons and displayed indicators provide TW7201I
function control and status including access to advanced features from menus.
For the knob, button and indicator locations, refer to Figure 3-1 above.
3.2.1
Power/Volume The PWR/VOL knob provides power to the TW7201I. It also provides volume
control for the internal speaker. To increase volume, turn the
knob clockwise.
3.2.2
Clarifier The CLAR knob provides frequency fine tuning by adjusting the channel
frequency to clarify the signal. The knob has continuous rotation and provides
a maximum of -600 Hz and +600 Hz offset in 10 Hz steps. Turn the
knob counterclockwise for negative offset and clockwise for positive offset
(USB mode). The offset value is displayed on the right side of the LCD and is
nulled by turning the knob until the offset reads +000 Hz, or by pressing the
knob (off). When the clarifier is off, no clarifier information is displayed.
Pressing the knob a second time restores the previous offset and refreshes the
display.
PWR OFF/VOL
CLAR
3-2 TW7201I-MS
3.2.3
n
Keypad The keypad provides the following operations:
• Enters numeric or alpha characters
• Saves data
• Selects channels and frequencies
• Scrolls within menus
3: Operation
Entering
Numbers
Entering Text
To enter numbers:
1. Press the desired keypad number.
The display has a permanent
decimal and comma in the
frequency field.
2. If a value is entered that is below
10.000000 MHz, use the decimal
button.
Alpha characters are entered using a
combination of two buttons. For
example:
1. On the keypad, press the top
bracketed button, then 1 to enter
character A.
2. Press the middle bracketed button,
then 1 to enter character B.
3. Press the bottom bracketed button,
then 1 to enter character C.
Scroll up
Scroll left
Scroll dow
Scroll right
Enter
Frequency
Channel
Editing Text To enter a space, press any bracketed button, then 0.
To delete a character, use the left and right arrows to position the cursor, then
press the C button. All trailing characters move to the left.
Menu Navigation To scroll through the menu selections, use the up and down arrow buttons.
These arrows convert to left and right scrolling when editing in the text
message mode. The scrolling rate remains constant while an arrow button is
held down. The arrows remain active until another control function is
selected.
Channel and
Frequency
Selection
The C, F, and E buttons enter channel and frequency information into memory.
To select a channel:
1. Press the C button.
2. Enter the channel number using the keypad.
TW7201I-MS 3-3
3: Operation
3. Press E to enter the channel selection.
To select a frequency:
1. Press the F button.
2. Enter the frequency.
3. Press E to enter the frequency into memory.
3.2.4
Function
Buttons
The TW7201I front panel includes preprogrammed function buttons such as
CALL, SEND, TUNE and ALPHA. The LCD displays the icons at the left and
bottom section of the LCD.
Alpha The ALPHA button provides access to the Alpha menu. The Alpha button is in
the group of five buttons immediately to the right of the LCD. The ALPHA
button is the fourth from the top.
1. Press the ALPHA button to access the Alpha Menu.
2. To exit the menu, press ALPHA again.
Call The CALL button initiates a call sequence in the ALE option or in the
Transcall, Selcall, TransAdapt option. If these options are not installed or if
they are turned off, this button is disabled.
For information on placing ALE calls, refer to Section 3.7 “Placing an ALE
Call” on page 3-22. For information on placing Transcall, Selcall or
TransAdapt calls, refer to Section 3.8 “Placing a TransAdapt, Transcall or
Selcall” on page 3-23.
External RF
Amplifier
The EXT AMP button transfers PTT control to an external amplifier connected
to the TW7000 ACC 3 accessory connector.
1. To automatically set and lock RF power in the H (high power) position,
set it to
ON.
2. To restore control, set it to OFF and the TW7000 no longer requires an
external amplifier.
Priority Channel The PRI button sets the TW7000 to a channel defined as the priority channel.
The priority channel is preset to channel 001. To change the number of the
priority channel, refer to Section 3.4 “Using Menus to Change Settings” on
page 3-7.
RF Power Level The RF PWR button allows scrolling through the L (low), M (medium), and H
(high) power settings. Default settings for the three RF power levels are listed
in the following table.
RF Power Level Factory Preset ALPHA 5 Setting
L (low) 10W (average power) 10
M (medium) 25W (average power) 30
3-4 TW7201I-MS
3: Operation
RF Power Level Factory Preset ALPHA 5 Setting
H (high) 100W (average power) 200
To change these values, refer to Section 3.4 “Using Menus to Change
Settings” on page 3-7.
RX Attenuator The ATTN button reduces a strong receive signal by 20 dB by changing the
status of the input receiver attenuator from ON (+20 dB input RX pad) to OFF.
Scan The SCAN button initiates the function that searches the channels in the
selected scan group for a clear frequency.
1. Press the SCAN button to begin scanning the channels in the selected scan
group.
2. Press SCAN a second time to terminate the scan sequence and revert the
TW7000 to the last channel scanned.
For more information, refer to Section 3.6 “Scanning (for TA/TC only)” on
page 3-20.
Scan Group A scan group is a collection of channels grouped together. After defining the
scan groups, use the SCAN GROUP button to select a scan group. For more
information on scan groups, refer to Section 3.6 “Scanning (for T A/TC only)”
on page 3-20.
Send The SEND button sends an ALE call to the last station with an established link.
Press the SEND button to send an ALE call. For a more detailed description,
refer to Section 3.7 “Placing an ALE Call” on page 3-22.
Speaker The SPKR button switches the internal speaker on and off. To mute the
speaker, press the SPKR button (located beneath the SPKR icon on the lower
right side of the display). The status of the speaker (ON or OFF) is displayed
under this icon.
Squelch The SQ button changes the status of the squelch circuit from ON to OFF, or
vice versa. In the
ON setting, background noise is muted.
Tune The TUNE button activates the tune cycle when using automatic antenna
tuners like the RAT1000C with the TW7000.
Mode The MODE buttons, located beneath the mode icon on the lower left side of the
display , select an operational mode. Press the up or down arrow
MODE buttons
to scroll through the following choices.
Mode Description
USB Upper sideband voice: Standard voice grade IF filter and
voice AGC time constants.
LSB Lower sideband voice: Standard voice grade IF filter and
voice AGC time constants.
TW7201I-MS 3-5
3: Operation
Mode Description
USB/LSB
DATA
USB/LSB
AME
FSK AGC time constants, optional USB/LSB wideband
data filter, 300-3300 Hz bandwidth.
Same as USB/LSB mode with addition of carrier in
transmit mode at a level of -6 dB relative to PEP.
USB PCS Same as USB mode with addition of carrier in transmit
mode at a level of -16 dB relative to PEP.
USB/LSB
Optional narrowband filter with 500 Hz bandwidth.
CW
Note: The LCD only displays these modes if a mode option is installed
(7000WB1 or 7000CW). The mode buttons are disabled if the Lockout or
Frequency Blank functions are turned on. For information on these functions,
refer to Section 3.4 “Using Menus to Change Settings” on page 3-7.
3.2.5
Internal Options The OPTION and STATUS buttons change the status of the following installed
options.
Option Displayed Icon
FED-1045 ALE ALE
Transcall/Selcall TC/SC
TransAdapt TA
Noise Blanker NB
Voice Enhancement OPT
Encryption ENCR
When an option is installed in the TW7000, a corresponding icon is displayed
on the outer edge of the LCD. The LCD displays the icon and the option’s
current status (
ON or OFF).
To change the status of an installed option:
1. Press OPTION or STATUS. The icon of the last entered option flashes.
2. If you want a different option, press OPTION until the desired icon
flashes.
3. Press STATUS to toggle between ON and OFF.
Note: If you press a button other than OPTION and STATUS, the icon
stops flashing and the radio performs the function of that button. The icon
also stops flashing after a time-out of 10 seconds.
3-6 TW7201I-MS
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