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NMEA Data Multiplexer
Install User Manual
Multiple talker interface for use with the NMEA 0183 standard. Serial data
networking of marine electronic devices / instruments.
RS232 & USB 1.1 & 2.0 PC interfaces to the NMEA 0183 standard.
Actisense ISO-Drive technology for a fully isolated serial data system.
Intelligent NMEA filtering on all inputs allows smart removal of NMEA data.
Re-configurable to work as an NDC-4-ASW Autoswitch to allow the automatic
switching between up to 4 NMEA inputs.
NDC-4
For all variants:
NDC-4, NDC-4-USB, NDC-4-ASW
NDC-4-AIS, NDC-4-AIS-USB
Issue 1.08
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Summary of Contents for Actisense NDC-4
- Page 1 Multiple talker interface for use with the NMEA 0183 standard. Serial data networking of marine electronic devices / instruments. RS232 & USB 1.1 & 2.0 PC interfaces to the NMEA 0183 standard. Actisense ISO-Drive technology for a fully isolated serial data system. Intelligent NMEA filtering on all inputs allows smart removal of NMEA data. Re-configurable to work as an NDC-4-ASW Autoswitch to allow the automatic ...
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Page 3: Table Of Contents
Actisense PC Software suites Installing Actisense PC software Uninstalling Actisense PC software Configuration of AIS Setting up the Hardware for AIS The NDC-4-ASW Autoswitch Setting the NDC-4 as an Autoswitch Troubleshooting Guide Diagnostic LED Specifications Order Codes Returns Procedure Company Information ©... -
Page 4: Important Notices
(e.g. GPS’s or depth sounders) the system solution could be to use the NDC-4 as an NMEA Autoswitch The NDC-4 does not validate the NMEA data it receives in to select the highest priority source. any way. Neither the NMEA sentence checksum, nor the data contained within the NMEA sentence is validated. -
Page 5: General Features
10 year Data Retention provides carefree by an NMEA 0183 Listener that expects a checksum. This user configuration. feature makes the NDC-4 essential even when interfacing a single v.1.5 NMEA 0183 Talker to a v.2.0 (and above) On-chip memory store allows buffering of short-term NMEA 0183 Listener. -
Page 6: Software Updates
OPTO IN ‘+/A’ input of the NDC- depending on the instrument and manufacturer. 4. Connect the ground line of the single-ended output device to the OPTO IN ‘-/B’ input of the NDC-4. This When connecting between different manufacturers, there provides the data signal return current path. If the NMEA can be some confusion, but it is simple and easy to ‘-/B’ input is left floating, then data corruption / errors may... -
Page 7: Connections
Actisense low current drain circuitry (2mA @ PC’s USB port. Once the USB cable is powered and 2.0v) to conform in full with the NMEA 0183 marine plugged into the NDC-4, Port 0 switches to an output only electronic device network communication standard, and mode - this allows the USB port to take over bidirectional are flexible enough to interface to most fully and partially control of the NDC-4. -
Page 8: Connecting To Nmea Devices
Please determine (from device manufacturer’s information) of NMEA 0183 devices and a Personal Computer (PC) if the device(s) required to be connected to the NDC-4 communication port. However, if you wish to maintain conforms in full to the NMEA 0183 network communication isolation between all devices, then only one listening standard. If it does not, the flexible NDC-4 inputs should... -
Page 9: Other Connections
Connecting to the Battery Supply The NDC-4 can be powered either by the USB connection 3. The TX of the NDC-4 should be connected to the RX of or through an external power source. If both power sources the computer (standard D-type, pin 2) and the NDC-4 RX are available, the precautions in the USB warning section should be connected to the TX of the computer (pin 3). above must be adhered to. The GND of both IN 0 and OUT 0 on the NDC-4 should be connected to the PC’s serial port ground (pin 5). See If the NDC-4 is powered from an external power source, “Figure 26 - DB9 Connection” on page 9 of the “Full user... -
Page 10: Usb Driver Installation
1. Open ‘Device Manager’ (from the start menu type Kit from your dealer. ‘device manager’ in the search box, open it from the list). The USB cable is not vital to the configuring or updating of an NDC-4; Port 0 (OPTO IN 0 and ISO OUT 0) connected to an RS232 port can perform exactly the same operations if a USB cable is not available see “Other Connections” on page... -
Page 11: Windows Xp And Windows Nt/2000
NMEA Data Multiplexer - NDC-4 Windows XP and Windows NT/2000 4. Click the ‘Browse’ button and locate the folder that the ftdibus.inf” ). Once USB driver is saved (containing “ The following instructions are for Windows XP. Although the folder is selected click ‘Next’. not the same, Windows NT/2000 users will be able to use this information as well. -
Page 12: Usb Configuration
‘Next’. Locate and Change the Port Number 1. Connect the NDC-4 USB cable to a USB port on the In Windows 7 and Vista; from the start menu type ‘Device Manager’ in the search box, open it from the list. In Windows XP; from ‘Control Panel’, select ‘System’, on the ‘Hardware’ tab click ‘Device Manager’. - Page 13 4. Click on the ‘Advanced’ button and choose a different COM Port number if required (to make it compatible with the software requiring the NDC-4 NMEA data). Figure 4 - COM Port Numbers List Windows remembers all previously connected USB ports and lists all these as ‘in use’ even when they are not connected.
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Page 14: Actisense Pc Software Suites
Actisense PC Software suites The Actisense NMEA Data Combiner hardware can be configured, monitored and tested using its own dedicated software suite, ‘NDC Control Centre’. The NDC-4 can be updated / upgraded using the latest ActiPatch software suite. This section provides a complete users guide to installing and uninstalling these two software suites. These programs are currently only available for Windows NT/2000/XP/Vista/7, however, it has been proven possible to use Control Centre and ActiPatch on a Mac running ‘VMware Fusion’ Windows emulation software. -
Page 15: Uninstalling Actisense Pc Software
Control Centre” , or “ActiPatch” . 1. To uninstall the program, from the ‘Start Menu’ navigate to the ‘Actisense’ directory and double click on the ‘Uninstall’ icon (refer to “Figure 7 - ‘Start Menu’ Short- Figure 9 –... -
Page 16: Configuration Of Ais
‘ISO OUT 0’, or the USB port. The remaining ports can be re-configured by the user as From the menu select ‘File → Load Configuration File’ needed using Control Centre. Refer to “Using NDC Control “NDC-4 config for AIS.ini” file from the and select Centre” on page 16 of the “Full user manual” available on install directory. Read the pop up and click ‘OK’. the CD and from www.actisense.com... -
Page 17: The Ndc-4-Asw Autoswitch
If this creates a ‘jumping’ position fix, vessel safety is seriously affected. The NDC-4 Autoswitch mode is the perfect solution to this problem - automatically selecting a single device from the multiple ‘same data type’ devices available. In the ‘Port Configure’ tab click on the button labelled “Change To Autoswitch” to change the NDC’s operation Autoswitch mode will automatically select the highest mode to Autoswitch. -
Page 18: Troubleshooting Guide
Diagnostic LED The NDC-4 hardware supports a tricolour diagnostic LED that indicates the current operating mode of the hardware, or if an error has been detected during the self-test initiation process. ‘Table 1’ details what each LED colour represents and if any user interaction is required. LED Colour /... -
Page 19: Specifications
NMEA Data Multiplexer - NDC-4 Specifications The NDC-4 ISO-Drive output is a very flexible output that is RS485, RS232, RS422 and NMEA 0183 compatible. Parameter Conditions Min. Max. Unit Supply Supply voltage External power supply Supply voltage = 12v Supply current from external source (see note 1) Supply voltage = 24v Supply voltage USB powered 4.75 5.25... -
Page 20: Order Codes
NDC-4 base unit pre-configured as an Autoswitch Returns Procedure Actisense prides itself on having a very low product return rate. In the unlikely event that you need to return a unit for repair, it is important to follow these steps.
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