SatLink VSAT User Guide
Publication no. 101557
Copyright © 2009 – STM Group, Inc.
Page 71 (160)
13. Traffic Initiated Logon
The SatLink VSAT can be configured to logon automatically to the DVB-RCS Hub when it has traffic to
send and logoff again when it has had no traffic to send for a configurable timeout period.
This mode is useful for VSAT installations where low power consumption is important (e.g. when
powered by solar power and batteries). It is also useful in systems where it is desirable to reduce the
signalling bandwidth on the return channel (by avoiding use of dedicated SYNC slots when the VSAT
has no traffic to send).
The power saving mode requires the use of the STM SatLink 403x transceiver. The power consumption
will then be reduced from typically 27W to approximately 12W when the VSAT is logged off when using
the SatLink 403x transceiver with SatLink 1000
6
.
The STM SatLink VSAT can be configured to use traffic initiated logon by typing the CLI command
dvb tx autostart traffic <timeout>
where <timeout> is the timeout in minutes the VSAT
will wait before logging off when it has no traffic to send.
Example:
dvb tx autostart traffic 5
Configures the SatLink VSAT to use traffic-initiated logon and automatically log off the network after
not having any traffic to send for 5 minutes.
Verify the configuration of the transmitter mode and the timeout for traffic-initiated logon by typing the
CLI command
dvb tx show.
6
When using the STM SatLink 4033 transmitter with STM SatLink 1000 the power consumption will be
reduced from typically 30W to approximately 12W when the terminal is logged off.
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