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Connections 

NMEA Listener Ports 

The MiniPlex-41USB has four listener ports, ‘In 1’ to ‘In 4’. Each listener port should be connected 

to one instrument only. These inputs are galvanically isolated from the multiplexer, as specified in 

the NMEA-0183 standard. 

Connect the ‘a’ and ‘b’ terminals of the listener port on the MiniPlex-41USB to the ‘a’ and ‘b’ 

terminals of the talker port on the instrument. Other designations used are ‘Data +’ and ‘Data -’, 

‘TX+’ and ‘TX-’ or ‘Out +’ and ‘Out –’. 

Some instruments have single ended talker ports, with only one data terminal. Connect this 

terminal to the ‘a’ terminal on the MiniPlex-41USB, and connect the ‘b’ terminal on the MiniPlex-

41USB with the instrument ground. 

Instrument

Multiplexer

Instrument

Multiplexer

TX

GND

Differential

Single-ended

Out A / +

Out B / -

In A

In B

In A

In B

 

NMEA Talker Ports 

Both talker ports can be connected to up to four instruments. Connect the ‘a’ and ‘b’ terminals of 

the talker port on the MiniPlex-41USB to the ‘a’ and ‘b’ terminals of the listener port(s) on the 

instrument(s). Other designations used are ‘Data +’ and ‘Data -’, ‘RX+’ and ‘RX-’ or 

‘In +’ and ‘In –’. 

Some instruments have single ended listener ports, with only one data terminal. Connect this 

terminal to the ‘a’ terminal on the MiniPlex-41USB, and leave the ‘b’ terminal on the MiniPlex-

41USB unconnected. Connect the ‘Com’ terminal on the MiniPlex-41USB with the instrument 

ground. 

Multiplexer

Instrument

Multiplexer

Instrument

Differential

Single-ended

RX

GND

Out A

Out B

Out A

Out B

In A / +

In B / -

GND

GND

Multiplexer

Out A

Out B

GND

Instrument

In A / +

In B / -

Instrument

RX

GND

Instrument

In A / +

In B / -

Multiple instruments

 

Содержание MiniPlex-41USB NMEA-0183

Страница 1: ...MiniPlex 41USB NMEA 0183 multiplexer Manual MiniPlex 41USB V1 0 Firmware V1 30 CustomWare 2004...

Страница 2: ...rs in a round robin fashion one sentence at a time giving each listener port equal priority Each sentence is then sent to the talker ports and the USB port The speed of the listener ports is fixed to...

Страница 3: ...iplexer Instrument Multiplexer TX GND Differential Single ended Out A Out B In A In B In A In B NMEA Talker Ports Both talker ports can be connected to up to four instruments Connect the a and b termi...

Страница 4: ...anch Ports COM LPT The port for the multiplexer is listed as USB Serial Port COMx where COMx is the name of the newly created serial port To change this port number double click on the USB Serial Port...

Страница 5: ...ig the settings will be saved Read Configuration Every time you start MPX Config it will request the current configuration from the MiniPlex 41USB When this is unsuccessfull various controls on the MP...

Страница 6: ...hen the laptop is not connected the multiplexer switches to in hub mode and sends all data from the intruments directly to the autopilot This way the autopilot will receive course information directly...

Страница 7: ...MiniPlex 41USB only passes complete and valid sentences There are three ways to resolve this overflow situation 1 Configure the instruments on the listener ports to send less data or with greater int...

Страница 8: ...gistry keys The serial port settings of MPX Config are stored in the Windows registry using the following keys HKEY_CURRENT_USER Software CustomWare MPXConfig BaudRate HKEY_CURRENT_USER Software Custo...

Страница 9: ...Get Version Retrieves version information from the multiplexer The multiplexer responds with the following version sentence PSMDVER 1 00 MiniPlex 41USB 1020f9a3 hh CR LF 1 00 software version number...

Страница 10: ...responds with a CF sentence OV Overflow In case of a buffer overflow blinking red LED on the multiplexer an overflow sentence is output to indicate on which input buffer the overflow occurred To conse...

Страница 11: ...EN IEC61000 6 1 1997 and EN IEC61000 6 3 1996 FCC Title 47 CFR Part 15 Class B The product herewith complies with the requirements of the EMC Directive 89 336 EEC and carries the CE marking accordingl...

Страница 12: ...12 ShipModul CustomWare Roggehullen 8 9403 WG Assen The Netherlands Tel 31 592 375700 Fax 31 592 375550 web www shipmodul com e mail info shipmodul com...

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