Manual MR3140-M - DResearch

DResearch – User Manual TeleObserver MR3140-M 2011-02-03
3.1.1.10 Connectors :: GPS
The device supports the connection of an external GPS receiver for receiving GPS data. This can be
connected either via the COM1 port or the Ext. Devices (COM4 = RS485) port. This has to be
configured in the SystemManagement module as follows:
� In the options on the main window select the Connections – GPS entry.
� Select the COM 1 or COM4 (RS485) port.
� Click the Save button on the toolbar to set the default settings.
Field Description
Connection
Interface � Select the unit’s COM1 or Ext. Device (=COM4=RS485) interface to which the
GPS receiver is to be connected.
� COM1 is recommended as this is a direct connection.
� If a rail media coupler is connected to the unit then the Ext. Device port is not
available.
Bit rate � Set the maximum bit rate which can be used for transmission between the GPS
receiver and the unit’s COM port.
Data bits � Number of bits which can be transmitted in a data packet.
Parity � Shows whether error checking is carried out or not.
Stop bits � Number of stop bits between two transmitted data packets.
Flow control � Shows how the data flow between the serial interface and GPS receiver is
controlled.
GPS
Protocol � Set the protocol used by the GPS receiver.
� The NMEA protocol is supported.
Bitrate: 4800
Data bits: 8
Parity: none
Stop bits: 1
Flow control: none
Protocol: NMEA
GPS databases are not
activated
Use following data sets � Mark the parameters, whose values will be recorded for a subsequent search
and displayed in Vision in live pictures.
43