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Summary of Contents for Codan 3012
- Page 1 HF Data Modem 3012 H F R A D I O C O M M U N I C A T I O N S R E F E R E N C E M A N U A L...
- Page 2 No part of this manual may be reproduced, transcribed, translated into any language or transmitted in any form whatsoever without the prior written consent of Codan Limited. ® is a registered trademark of Codan Limited ® CALM is a registered trademark of Codan Limited ®...
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Page 3: Table Of Contents
High Frequency Data Modem 3012 ........ - Page 4 Setting up automatic channel selection ..........5-5 HF Data Modem 3012 Reference Manual...
- Page 5 Summary of AT commands to display S-registers ........A-6 Index HF Data Modem 3012 Reference Manual...
- Page 6 Table of contents This page has been left blank intentionally. HF Data Modem 3012 Reference Manual...
- Page 7 Exploded view of HF Data Modem 3012 ....... . .
- Page 8 List of figures This page has been left blank intentionally. HF Data Modem 3012 Reference Manual...
- Page 9 Table A-1: AT commands for the HF Data Modem 3012 ......A-1 Table A-2: AT commands for the HF Data Modem 3012 S-registers .
- Page 10 List of tables This page has been left blank intentionally. viii HF Data Modem 3012 Reference Manual...
- Page 11 Chapter 5 Setting up an NGT to operate with the data modem—provides specific information for operating the data modem with a Codan NGT transceiver Chapter 6 Specifications—contains the specifications for the data modem Chapter 7 How the data modem works—provides a brief technical description of how...
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Page 12: About This Manual
HF Data Modem 3012 Reference Manual... -
Page 13: Definitions
EEPROM electrically erasable programmable read only memory EPROM erasable programmable read only memory equivalent series resistance FIFO first-in first-out ground high frequency integrated circuit inter integrated circuit input/output light emitting diode not connected HF Data Modem 3012 Reference Manual... - Page 14 QPSK quadrature phase shift keying random access memory request to send receive data SRAM static random access memory single sideband TSOP thin small outline package transistor−transistor logic transmit data HF Data Modem 3012 Reference Manual...
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Page 15: Glossary
In this manual, when referring to the NGT, transceiver equates to the RF unit. transmission Method used by a modem to transmit and receive information. protocol HF Data Modem 3012 Reference Manual... -
Page 16: Circuit Reference Designations
Frequency hertz Ω Impedance Mass gram Power watt Rate of data transfer baud baud Rate of data transfer bits per second °C Temperature degrees Celsius Temperature (Absolute) kelvin Time hour Time second Voltage volt HF Data Modem 3012 Reference Manual... -
Page 17: Unit Multipliers
About this manual Unit multipliers Unit Name Multiplier –9 nano –6 µ micro –3 milli –1 deci kilo mega giga HF Data Modem 3012 Reference Manual... -
Page 18: About This Issue
About this manual About this issue This is the second issue of the HF Data Modem 3012 Reference Manual. Associated documents Other publications associated with the HF Data Modem 3012 are: • 9102 Fax and Data Controller Software User Guide (Codan part number 15-04039) •... -
Page 19: Overview
Overview CODAN This chapter describes the features of the HF Data Modem 3012. It includes:3434 • a brief functional description of the data modem (2-2) • a brief physical description of the data modem (2-5) HF Data Modem 3012 Reference Manual... -
Page 20: High Frequency Data Modem 3012
High Frequency Data Modem 3012 Introduction The HF Data Modem 3012, when combined with the appropriate HF SSB transceiver and computer terminal, provides error-free transmission and reception of data on an HF channel. It is particularly useful for long-range communications in remote areas where existing communications are poor or non-existent. -
Page 21: Transmission Protocol
Notification of any corrupt transmissions is sent back to the sending station and re- transmitted in the next information packet. HF Data Modem 3012 Reference Manual... - Page 22 For this reason, it is recommended that only text messages are sent in group and broadcast transmissions, as one error would be sufficient to make an encrypted or compressed message indecipherable. HF Data Modem 3012 Reference Manual...
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Page 23: Physical Description
Overview Physical description General The HF Data Modem 3012 is housed in a diecast aluminium chassis, containing two PCBs: • DSP Modem PCB (main PCB) • User Connector PCB The User Connector PCB supports the connectors mounted on the rear panel. The two boards are linked by three internal wiring looms. - Page 24 Overview This page has been left blank intentionally. HF Data Modem 3012 Reference Manual...
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Page 25: Installation
Installation CODAN This chapter describes how to install the HF Data Modem 3012. It includes: • unpacking the data modem (3-2) • additional equipment required (3-3) • connectors (3-4) • cables for connecting transceivers (3-6) • installing the data modem system (3-7) •... -
Page 26: Unpacking The Data Modem
90-20504-001) Inspect each item to ensure it is not damaged. If you notice any damage, return the damaged item intact to Codan for replacement. Failure to do so may result in any warranty being void. HF Data Modem 3012 Reference Manual... -
Page 27: Additional Equipment Required
Installation Additional equipment required The following additional equipment is required to set up an HF Data Modem 3012 station: • Codan transceiver configured for continuous data operation (includes a fan Option F; pre–NGT transceivers require Option D) • AC power supply unit •... -
Page 28: Connectors
The data modem has two connectors on the rear panel—the Terminal connector and the Transceiver connector. Figure 3-1: Rear panel of HF Data Modem 3012 Terminal connector The 9-pin D-type Terminal connector is used to connect the data modem to a data terminal or PC. -
Page 29: Transceiver Connector
QUIET output, +12 V when in data mode Busy output (OC) PTT output (OC) Audio output (3 V p−p max) Ground Ground Scan input Spare input BUSY input Serial control data input (TTL) Audio input (4 V p−p max) HF Data Modem 3012 Reference Manual... -
Page 30: Cables For Connecting Transceivers
Installation Cables for connecting transceivers The cables required to connect the data modem to the Codan transceiver depend on the type of transceiver used and the length of cable required. These cables are shown in the table below. Table 3-3: Cables used for Codan transceivers... -
Page 31: Installing The Data Modem System
Transceiver socket on the data modem and the socket on the transceiver listed below: Transceiver Socket (GPIO) 93XX Connect the computer cable (Codan part number 08-05086-001) between the Terminal socket on the data modem and the serial port of the terminal or PC. HF Data Modem 3012 Reference Manual... - Page 32 Ensure the correct mains voltage has been selected for the power supply and the terminal or PC. Connect the transceiver to the antenna system. Switch on the power supply and the transceiver. All the LEDs of the Throughput indicator illuminate briefly, then the illuminates steady green. HF Data Modem 3012 Reference Manual...
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Page 33: Setting Up The Pc Or Terminal
If you are using a terminal connected to the data modem instead of the 9102 Fax and Data Controller Software on a PC, the terminal must be set as follows: • 9600 baud • 8 data bits • no parity • 1 stop bit • hardware handshaking (RTS/CTS signals) HF Data Modem 3012 Reference Manual... -
Page 34: Setting The Station Address
Confirming the station address To confirm the current data modem station address using AT commands: On the terminal keyboard, type AT&I?. Press Enter. The terminal responds with the current station address followed by OK. 3-10 HF Data Modem 3012 Reference Manual... -
Page 35: Checking The Operation Of The Data Modem
From the terminal program, type ATE1 and then press Enter. If the OK response is displayed on the PC screen (possibly with other information), exit the terminal software as the correct connection is in place. HF Data Modem 3012 Reference Manual 3-11... -
Page 36: Testing The Data Link
To send a text message: Type a text message in the Sending window. As the message is sent, the contents are displayed in the Sent window. The data modem is now ready for operation. 3-12 HF Data Modem 3012 Reference Manual... -
Page 37: Operating The Data Modem
Operating the data modem CODAN This chapter describes how to operate the HF Data Modem 3012. It includes:1212 • powering up the data modem (4-2) • modes of operation (4-3) • controlling the data modem (4-4) HF Data Modem 3012 Reference Manual... -
Page 38: Powering Up The Data Modem
For modulation over 16 channels (AT&M=5), each LED in the indicator represents approximately 100 bps of data throughput. The LEDs illuminate accumulatively, e.g. five LEDs illuminated represents approximately 500 bps of data throughput. HF Data Modem 3012 Reference Manual... -
Page 39: Modes Of Operation
(called an escape command) is received to switch the data modem back to local command mode (see page 4-5, Switching to local command mode). Your data modem must be in local command mode to perform any AT commands sent from the PC or terminal. HF Data Modem 3012 Reference Manual... -
Page 40: Controlling The Data Modem
9102 Fax and Data Controller Software may be used to control the data modem. For instructions on controlling the data modem using a PC running the 9102 Fax and Data Controller Software, refer to the 9102 Fax and Data Controller Software User Guide. HF Data Modem 3012 Reference Manual... -
Page 41: Controlling The Data Modem Using At Commands
When the data modem switches to local command mode, OK is displayed on the terminal. HF Data Modem 3012 Reference Manual... -
Page 42: Returning To On-Line Mode
1 prior to polling each remote station, then the remote station immediately sends an abort signal if it has no data to send. To set a unit address: Type AT&U=nn where nn is between 0 and 15, then press Enter. HF Data Modem 3012 Reference Manual... -
Page 43: Setting How Calls Are Answered Automatically
The data modem sends an abort to the other data modem as soon as it receives a unit address that is greater than zero. To reject all calls: Type AT&A=3 and press Enter. The data modem sends an abort to the other data modem immediately. HF Data Modem 3012 Reference Manual... -
Page 44: Answering Calls Manually
An HF link is not terminated until the hang up command is issued. To terminate the HF link at both ends: Type ATH or ATH0 and press Enter. The ATH command may take up to 30 seconds to complete while both stations disconnect from the link. HF Data Modem 3012 Reference Manual... -
Page 45: Making Selective Call Transmissions
NO CARRIER is displayed on the terminal. If no response is detected within the time-out period (approximately two minutes), the data modem aborts the call and NO ANSWER is displayed on the terminal. HF Data Modem 3012 Reference Manual... -
Page 46: Making Broadcast Call Transmissions
For example: entering the address 123400 sends to all stations with addresses between 123401 and 123499 inclusive. Press Enter. When the data modem is ready to send data, CONNECT is displayed on the terminal and the data modem switches to on-line mode. 4-10 HF Data Modem 3012 Reference Manual... -
Page 47: Enabling/Disabling Local Data Echo
Type ATR0 and press Enter. Displaying remote station address To display the address of the remote station to which the local station was last connected or is currently connected: Type AT&R? and press Enter. HF Data Modem 3012 Reference Manual 4-11... -
Page 48: Storing Station Addresses
Use the ATF command to change the local echo setting. • Any unknown commands are responded to with OK instead of ERROR. This does not include commands with illegal values, which still generate the response ERROR. 4-12 HF Data Modem 3012 Reference Manual... -
Page 49: Changing The State Of The Dtr Input Line
DTR input goes high: Type AT&D=4 and press Enter. If the link fails, a reconnection is attempted until the link is established. If the DTR input goes inactive, the data modem hangs up. HF Data Modem 3012 Reference Manual 4-13... -
Page 50: Displaying Diagnostic Information
After the link terminates (i.e. after NO CARRIER), the terminal displays what caused it to stop. To instruct the data modem to give reasons for error messages and to show its status when connecting or disconnecting: Type ATW3 and press Enter. 4-14 HF Data Modem 3012 Reference Manual... -
Page 51: Changing The Response Format
To display numeric responses instead of messages: Type ATV0 and press Enter. Response codes Response codes for the data modem are listed in the table below. Table 4-2: Response codes for the HF Data Modem 3012 Code: Code: Description Digit (ATV=0) -
Page 52: Saving Data Modem Settings
To return the data modem to factory default values: Type AT&F and press Enter. To permanently store the factory defaults into non-volatile memory: Type AT&W and press Enter. Your data modem will lose its self address. 4-16 HF Data Modem 3012 Reference Manual... -
Page 53: Enabling/Disabling Data Compression
To use no flow control: Type AT&K=0 and press Enter. To use software flow control (XON/XOFF): Type AT&K=4 and press Enter. Software flow control should not be used when binary data transfers are in progress. HF Data Modem 3012 Reference Manual 4-17... -
Page 54: Setting The Modulation Method
Displaying data modem product and version number To display the product version number and date of the data modem: Type ATI and press Enter. To display the product identity: Type ATI1 and press Enter. 4-18 HF Data Modem 3012 Reference Manual... - Page 55 Setting up an NGT to operate with the data modem CODAN This chapter describes how to set up a Codan NGT transceiver to operate with the HF Data Modem 3012. It includes:1414 • installing the data modem with an NGT transceiver (5-2) •...
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Page 56: Setting Up An Ngt To Operate With The Data Modem
Setting up an NGT to operate with the data modem Installing the data modem with an NGT transceiver To install the HF Data Modem 3012 with a Codan NGT transceiver, follow the instructions in Chapter 3, Installation, and use the additional information below. -
Page 57: Setting Up The Ngt To Operate With The Data Modem
To store these settings as a profile, select Save As… from the File menu and save the file using an appropriate filename. Program the saved profile to the transceiver (see Chapter 4, Working with profiles in the NGT System Programmer User Guide). Switch the transceiver off then on again. HF Data Modem 3012 Reference Manual... -
Page 58: Setting Up An Ngt Network To Operate With The Data Modem
If using NSP, enter 0.5 seconds in the Detect Time field. Voice Only a. If you use an HF Data Modem 3012 in an ALE/CALM network, scanning is quicker than in other types of networks because the NGT establishes the channel for the data modem. -
Page 59: Setting Up Automatic Channel Selection
Setting up an NGT to operate with the data modem Setting up automatic channel selection The HF Data Modem 3012 has facilities for controlling the channel selected by the NGT when ALE/CALM is not used. Channel names in the NGT that are to be used by the data modem must be numbers in the range 1–9999. - Page 60 Setting up an NGT to operate with the data modem This page has been left blank intentionally. HF Data Modem 3012 Reference Manual...
- Page 61 Specifications CODAN This chapter lists the specifications of the HF Data Modem 3012. It contains:66 • general specifications (6-2) • system requirements (6-3) • environmental specifications (6-3) • physical specifications (6-3) HF Data Modem 3012 Reference Manual...
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Page 62: Specifications
TR.29 based ‘AT’ port, 9600 baud RS232 Data compression Transceiver control lines and press-to-talk Front panel indicators 1 × multi-colour LED Throughput 10 × red LEDs indicating approximately 100 bps per LED when using 16 channels HF Data Modem 3012 Reference Manual... -
Page 63: System Requirements
Relative humidity 100% Physical specifications Mechanical Size 210 mm W × 240 mm D × 65 mm H (includes allowance for rear connectors) Weight 1.9 kg Sealing IP64 Mounting Free standing Flange Mobile mounting cradle HF Data Modem 3012 Reference Manual... - Page 64 Specifications This page has been left blank intentionally. HF Data Modem 3012 Reference Manual...
- Page 65 How the data modem works CODAN This chapter provides a general description of how the HF Data Modem 3012 works. It includes:8910 • general description (7-2) • how the DSP Modem PCB works (7-3) • how the User Connector PCB works...
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Page 66: How The Data Modem Works
How the data modem works Technical description The technical description for the 3012 should be read in conjunction with drawing 03-01080, 3012 HF Data Modem Schematic Block Diagram. The HF Data Modem 3012 contains two PCBs: • DSP Modem PCB (Codan part number 08-05860-001) •... -
Page 67: How The Dsp Modem Pcb Works
IC107 is a complex device, which features two complete serial communication interfaces with 14 byte FIFOs and an additional parallel port. The primary role of IC107 is to provide the serial interface between the RS232 interface of the data terminal equipment and the DSP. HF Data Modem 3012 Reference Manual... -
Page 68: Throughput
–7 V. However, this rail has far too much ripple to directly feed the CoDec, and so has to be post-regulated by a conventional 3-terminal linear regulator (IC105 (LM79L05)), providing a smooth –5 V DC rail. HF Data Modem 3012 Reference Manual... -
Page 69: How The User Connector Pcb Works
+5 V and +10 V rails. This feeds an RS232 driver (IC4), which uses an internal charge pump to generate a negative rail. Therefore, the TTL level signals from the DSP Modem PCB pass from connector P6, through the opto-couplers and IC4, to the terminal interface via P4. HF Data Modem 3012 Reference Manual... - Page 70 How the data modem works This page has been left blank intentionally. HF Data Modem 3012 Reference Manual...
- Page 71 This chapter describes the maintenance and fault finding procedures applicable to the HF Data Modem 3012. It includes:1616 • adjustments and routine maintenance (8-2) • basic fault finding (8-5) • advanced fault finding (8-6) HF Data Modem 3012 Reference Manual...
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Page 72: Maintenance And Fault Finding
The data modem is not field serviceable. If a fault is identified, it should be returned to your Codan representative for repair. PCBs and units available as replacements The replacement PCBs and units available from Codan are listed in Table 8-1. -
Page 73: Pcb Removal
This should be done before working on, and at frequent intervals while working on circuit boards. • Wear a suitably grounded conductive wrist strap. This minimises the build up of static on you. HF Data Modem 3012 Reference Manual... -
Page 74: Fault Finding
Fault finding If technical assistance is required... If the fault finding procedures do not locate the fault in the 3012, or if further technical assistance is required for any other reason, please contact your Codan representative. For the most rapid response, please call the Codan office that is currently in office hours... -
Page 75: Basic Fault Finding
A humming noise on the transceiver may be caused by other equipment nearby. Try to identify the source of interference by switching other equipment off. If this is the case, move the transceiver and/or the antenna away from the source of interference. HF Data Modem 3012 Reference Manual... -
Page 76: Advanced Fault Finding
You may require a multimeter and a pozi-drive screwdriver (1 point) when conducting fault tests. Dismantling the data modem To dismantle the data modem for testing, see Figure 8-1 and follow the procedures below. Figure 8-1: Exploded view of HF Data Modem 3012 HF Data Modem 3012 Reference Manual... -
Page 77: Fault Finding The Power Supply In The Data Modem
(see page 8-6, Dismantling the data modem). Unplug the 4-way loom that connects to header P2. This isolates the User Connector PCB from the DSP Modem PCB. Switch on power to the data modem (via the transceiver). HF Data Modem 3012 Reference Manual... - Page 78 Measure the voltage across the GND and –5 V points on the DSP Modem PCB. The voltage should be –5.0±0.1 V. If this voltage is not within specified limits, the analog negative supply rail has failed and the DSP Modem PCB must be repaired or replaced. HF Data Modem 3012 Reference Manual...
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Page 79: Testing The Hf Subsystem
If you cannot identify a particular faulty PCB after conducting the previous fault detection tests, or if the data modem still does not work after replacing the PCBs specified, the complete data modem should be returned to Codan for servicing. - Page 80 Maintenance and fault finding This page has been left blank intentionally. 8-10 HF Data Modem 3012 Reference Manual...
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Page 81: Drawings
Drawings CODAN Drawing number Description 04-03366 sheet 1 DSP Modem Schematic 04-03366 sheet 2 04-03367 User Connector Schematic 08-05860 DSP Modem PCB Layout 08-05861 User Connector PCB Layout HF Data Modem 3012 Reference Manual... - Page 82 Drawings This page has been left blank intentionally. HF Data Modem 3012 Reference Manual...
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Page 89: Appendix A-At Commands
Appendix A—AT commands CODAN Summary of AT commands The AT commands that may be used with the HF Data Modem 3012 are listed in the table below. Valid channel numbers that are to be used by the data modem range from 1–9999. - Page 90 AT commands Table A-1: AT commands for the HF Data Modem 3012 (cont.) Command Description Page Ref. ATH, ATH0 Hangs up connection at both stations. page 4-8 ATH1 Ignores incoming call until ATH command is issued. page 4-9 ATH2 Hangs up connection after user has stopped typing data and all page 4-9 data has been transmitted.
- Page 91 AT commands Table A-1: AT commands for the HF Data Modem 3012 (cont.) Command Description Page Ref. Performs reset. page 4-16 AT%C0 Disables data compression. page 4-17 AT%C2 (default) Enables data compression (for selective calls only). page 4-17 Link Busy Input AT%I0? Displays state of busy input pin—not active (0) or active (1).
- Page 92 AT commands Table A-1: AT commands for the HF Data Modem 3012 (cont.) Command Description Page Ref. AT&C=a,b,c,d,e The data modem sets up the list of channels a, b, c, d and e (up to – five channels may be specified). The maximum length of the command line is 37 characters including commas.
- Page 93 AT commands Table A-1: AT commands for the HF Data Modem 3012 (cont.) Command Description Page Ref. AT&K? Displays the flow control status. – AT&M=0 Sets the modulation method to 4 channels, not secure. page 4-18 AT&M=1 Sets the modulation method to 8 channels, not secure.
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Page 94: Summary Of At Commands To Display S-Registers
S-registers are special purpose registers for storing data modem parameters. The AT commands that are used to display the contents of the S-registers of the HF Data Modem 3012 are listed in the table below. Table A-2: AT commands for the HF Data Modem 3012 S-registers Command Description ATS0 Automatically answers a call (Telephone mode, see AT&A commands). - Page 95 AT commands Table A-2: AT commands for the HF Data Modem 3012 S-registers (cont.) Command Description ATS43? Displays compression setting negotiated for the current or most recent link: 0 = compression was disabled 2 = compression was enabled ATS44? Displays unit address of sending station.
- Page 96 AT commands This page has been left blank intentionally. HF Data Modem 3012 Reference Manual...
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Page 97: Index
2-3 transceiver 3-5 transmissions 4-10 data hanging up 4-8 compression hardware flow control 4-17 enabling/disabling 4-17 HF subsystem flow control 4-17 testing 8-9 mode 6-2 data echo local 4-11 remote 4-11 HF Data Modem 3012 Reference Manual Index-1... - Page 98 User Connector 7-5 terminating a link 4-8 physical description 2-5 testing connectors 2-5 audio output path 8-9 general 2-5 HF subsystem 8-9 indicators 2-5 transceiver physical specifications 6-3 connector 3-5 power requirements 6-2 interface 7-5 Index-2 HF Data Modem 3012 Reference Manual...
- Page 99 Index transmission protocol 2-3 transmissions broadcast call 4-10 group call 4-10 selective call 4-9 unit address setting 4-6 unit replacement 8-2 User Connector PCB 7-5 version number displaying 4-18 weight 6-3 HF Data Modem 3012 Reference Manual Index-3...
- Page 100 Index This page has been left blank intentionally. Index-4 HF Data Modem 3012 Reference Manual...
- Page 101 81 Graves Street Newton SA 5074 AUSTRALIA Telephone +61 8 8305 0311 Facsimile +61 8 8305 0411 asiasales@codan.com.au Codan (UK) Ltd Gostrey House Union Road Farnham Surrey GU9 7PT UNITED KINGDOM Telephone +44 1252 717 272 Facsimile +44 1252 717 337 uksales@codan.com.au...
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