Cmn Context Properties

On-Board Servers (OBS) are on-board computers that provide core processing for in-vehicle systems, including Direct Client-to-Client (DCC) systems.

Each OBS includes a subset of schedule and other information from the central database used by Trapeze scheduling and operations management applications. OBS automatically share data with the back-office database when vehicles dock on to Vehicle Local Area Networks.

The following table describes the Cmn context properties that apply if your site also operates on-board computers:

Table 1. Cmn Context Properties
Property	Description
Cmn > CmnGPSInterface > GPSPort	Communication port from which the NMEA (National Marine Electronics Association) data is sent.
Cmn > CmnGPSInterface > GPSPortBaudRate	Baud rate of the GPS port.
Cmn > CmnGPSInterface > GPSPortDataBits	Number of data bits for the GPS port.
Cmn > CmnGPSInterface > GPSPortParity	Parity for the GPS port.
Cmn > CmnGPSInterface > GPSPortStopBits	Number of stop bits for the GPS port (0 =1 stop bit and 2 = 2 stop bits)
Cmn > CmnGPSInterface > GPSLatLonFormatDMS	Format of the GPS latitude and longitude data in DMS (Degrees-Minutes-Seconds)
Cmn > CmnGPSInterface > GPSFailuresToCOMReset	Number of failed read attempts or no data read before the system attempts
Cmn > CmnGPSInterface > GPSPortReadInterval	Number in milliseconds between each serial read call for NMEA data.
Cmn > CmnGPSInterface > GPSSendOnlyOnFixed	Ability to only send GPS data when the hardware reports GPS Fixed condition.
Cmn > CmnGPSInterface > GPSTimeDriftBeforeSet	Number of seconds of system time drift before using the GPS to set system time.
Cmn > CmnGPSInterface > StatusComponentName	Name of the component for the system health status.
Cmn > CmnGPSInterface > NMEAForwardIPUseUDP	Allows you to set 1 to use UDP or 0 for TCP.
Cmn > CmnGPSInterface > NMEAForwardPort	Communication port from where the NMEA data is forwarded.
Cmn > CmnGPSInterface > NMEAForwardPortBaudRate	Baud rate of the port that is used to forward NMEA data.
Cmn > CmnGPSInterface > NMEAForwardPortDataBits	Number of data bits of the port that is used to forward NMEA data.
Cmn > CmnGPSInterface > NMEAForwardPortParity	Parity of the port that is used to forward NMEA data.
Cmn > CmnGPSInterface > NMEAForwardPortStopBits	Number of stop bits of the port to forward NMEA data (0 = 1 stop bit, 2 = 2 stop bits).
Cmn > CmnGPSInterface > NMEAForwardIPAddress	IP address where the NMEA data is to be forwarded.
Cmn > CmnGPSInterface > NMEAForwardIPPort	IP Port number where the NMEA data is to be forwarded.
Cmn > CmnGPSInterface > NMEAForwardingON	Allows you to turn on and off the NMEA forwarding functionality (0 = off, 1 = on).
Cmn > CmnGPSInterface > NMEAForwardingUsingSerial	Sets the NMEA forwarding connection functionality (1=serial, 0= socket).
Cmn > Point > Enforce Unique Fields > Abbreviation	If selected, the point abbreviation must be unique.
Cmn > Point > Enforce Unique Fields > Code	If selected, the point code must be unique.
Cmn > Point > Enforce Unique Fields > Name	If selected, the point name must be unique.
Cmn > Point > Default Within Map	If selected, the system filters stops that are only within the area displayed on the map.
Cmn > Point > Map Layers Loaded in Browser	Type the layers that you want to be loaded to the client side map.
Cmn > Point > Main Task	By default, , the task to launch for editing points.
Cmn > Point > Max Search Result	Maximum number of rows of point search results that are shown . The default is 500.
CmnPointAbbreviation Max Length	Set to -1 to use the database field length by default. This property is used to overwrite this value for point abbreviations. Note: A larger length will be shortened down to the database length set in this property.