User Interfaces; Operating System; Telnet; Real Time Data Port (1135) - Symmetricom ATS-6501 Tflex User Manual

3.4

User Interfaces

Software interfaces on the ATS-6501 are limited in their ability to provide users with
real-time control. Adjusting some system parameters during operation of the ATS-6501 can
seriously impact the timing performance of the unit and therefore the ability to adjust these
parameters is limited by the software. Once properly installed, the ATS-6501 serves as a
stand-alone device which requires little to no interaction. Remote error monitoring capabilities
are provided as a means to ensure that the unit is powered and operating properly.

3.4.1 Operating System

The ATS-6501 operates a TSC modified version of FreeBSD. FreeBSD is a Berkeley
derivative of the UNIX operating system and largely equivalent to other UNIX operating systems.

3.4.2 Telnet

One advantage of accessing the ATS-6501 via telnet is that multiple telnet sessions may
be active at once. It is recommended that users connect directly to the desired port based on the
function(s) they are going to perform.

1135

1700

1800

1900
3.4.3.1

Real Time Data Port (1135)

Certain applications require that GPS data be retrieved in a timely manner. For this
purpose, Port 1135 may be configured to provide real-time data output. Users can specify which
logs are output and users may request any of the ASCII logs specified in the user manual for the
Novatel OEMV receiver (http://www.novatel.com/support/docupdates.htm#oemv).
3.4.3.2

Command Port (1700)

System commands can be issued to the ATS 6501 via the command port.
commands provide a limited set of operations to be used for remote control of the system.
Typically, a remote monitoring station may record an error that indicates user intervention is
required. The remote monitoring station would then be able to access the command port via the
Ethernet and issue the commands required for recovering from the error. The following list
provides a short description of each command.
Note: All commands are in lowercase and the commands are case sensitive.
Command
altitude Set Antenna altitude Default units = [m]meters, optional [ft] feet
antenna_delay Sets GPS antenna delay in seconds.
antenna_voltage Set GPS antenna voltage (0,5,12)
clear_alarms Clears latched alarm events.
config Shows unit configuration parameters
datum Set GPS datum, Default = wgs84, option nad83
delete Deletes specified user system configuration files.
Real Time Logging
Command
Diagnostics
Status
32
DOC06501_Revision F
ATS-6501 Users Guide
Description
These