Revision 7.10
2/28/2012
Thus, users should be very careful when using Dock Server and other communication
applications on the same serial ports. To return the modem to settings compatible with
Dock Server, stop Dock Server, cycle the modem’s power, and restart Dock Server.
1.4 Shipped Serial Port Configuration
The serial ports shipped with Dock Server have been factory configured as detailed in
this section. It is rare that the shipped configuration needs to be changed.
The file dockServerState.xml in the folder /var/opt/gmc stores Dock Server’s serial port
configuration. For laptop machines, the internal serial port and all ports of the shipped
4port USB serial adapter are configured for Dock Server management as shown in
Table 11.
Port
Baud
Flow
Control
Data bits Stop bits
Parity
/dev/ttyS0
115,200
RTS/CTS
8
1
None
/dev/ttyUSB0
115,200
RTS/CTS
8
1
None
/dev/ttyUSB1
115,200
RTS/CTS
8
1
None
/dev/ttyUSB2
115,200
RTS/CTS
8
1
None
/dev/ttyUSB3
115,200
RTS/CTS
8
1
None
Table 11. Shipped Laptop Serial Port Configuration.
Dock Server treats modems and Freewaves differently. Since Dock Server can not
determine the device attached to a serial port, the dockServerState.xml file must specify
the device type attached to each serial port. For laptop machines, table 12 shows the
device type associated with each managed serial port as shipped from the factory. In
addition, this table depicts the correspondence between OS serial port devices and the
serial port labels that appear on the USB to serial port hub. For example, OS device, “/
dev/ttyUSB0” corresponds to the serial port connector labeled “1” on the USB hub and
is configured to have a modem attached for Iridium communications.
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