User's Manual

Copyright © 1999 Trango Systems, Inc. All rights reserved.
9
VTX5900 Transmitter Operation:
Changing Channels:
To change channels, simply depress the Toggle/Standby switch momentarily until the
LED(s) for the desired channel is lit up. Remember to change the receiver channel as
well, since it is not automatically changed when the transmitter channel is changed.
As a rule of thumb, the first 6 systems operating along the same transmission path
should be set to use even channels ( 2,4,6,8,10,12). If more than 6 systems are
required along the same transmission path, use opposite polarization antennas and
then set the units to operate on the odd channels (1,3,5,7,9,11). Contact Trango Tech
Support for additional help on setting the correct configuration for your application.
Standby Mode -- Secure Standby Mode:
In this mode of operation the transmitter:
1. stops transmitting over the air completely by shutting down the majority of
its circuitry to save power, and
2. waits to be returned to Normal mode by one of the following:
a change in either Alarm input,
the Toggle/Standby switch, or
the TrangoLink software.
To enter Secure Standby mode, press and hold the Toggle/Standby switch for 2
seconds or use the TrangoLink software (See the TrangoLink section of this manual
for more information). The Status LED will blink for about 1 minute to allow the
operator to leave the area. During this time the alarms will not be sent to the
receiver. After 1 minute, the alarm inputs will be active and the status LED will then
blink to indicate that the unit is in Secure Standby mode.
To exit Secure Standby mode, momentarily press the Toggle/Standby switch or use
the TrangoLink software. After exiting Secure Standby mode, the active channel
LED will be on solid to indicate that the transmitter is now continuously transmitting
again.
Standby Mode -- Power Save Standby Mode:
In Power Save Standby mode, the transmitter will awaken (enter Normal mode) for a
user-selectable amount of time if an alarm is received over the Alarm 1 input. After this
time has expired, the transmitter will reenter Standby mode. The amount of time after
which the transmitter will reenter Standby mode can be set to any value between 1 and
255 minutes using the TrangoLink software. If zero is entered, the transmitter will be in
Secure Standby mode, and will not reenter Standby mode after awakening. More
information can be found in the TrangoLink section of this manual.
When the transmitter has been placed in Power Save Standby mode, the Alarm 1 input is
treated as normally-closed. An open condition on this input will awaken the transmitter
for the preset amount of time. The state of the Alarm 2 input does not affect the
transmitter in Power Save Standby mode.
In Power Save Standby mode the transmitter: