Serial Terminations/Connections; Switching On - Videotec ULISSE Manuel D'instructions

7.4.6 Serial terminations/connections

The diagram shows two dip-switches that are used to
configure termination of the serial line.
Every peripheral that is situated at the end of a line
must be terminated using the appropriate dip-switch
in order to prevent signal reflection and distortion.
dip-switches 1 and 2 terminate serial lines RS485-1
and RS485-2 respectively.
Unlike the previous cases in this table when
j
the dip-switch rocker is up it represents the
value 0 (OFF) while if the rocker is down it
represents the value 1 (ON).
TERMINATION OF RS485 LINES
Description DIP 2 DIP 1
Line RS485-1
Line RS485-2 ON
OFF
Tab. 11
24
Configuration
- ON Terminated
- OFF Not terminated
- Terminated
- Not terminated

8 Switching on

g Make sure that the ULISSE system and other
components of the installation are closed
so that it is impossible to come into contact
with live parts.
i Do not stay in the vicinity of the device
when it is powered. Always disconnect the
power supply before working on the device.
During normal operation the surface of the
l
illuminator can reach high temperatures.
Do not, therefore, allow direct contact
and position the appliance where it is
inaccessible to unauthorised persons.
Make sure that all parts are fastened down
h
firmly and safely.
Systems in the ULISSE line are switched on by simply
connecting the power supply, and switched off by
disconnecting the power.
The automatic pre-heating (de-ice) process
j
could be started whenever the device is
switched on and the air temperature is
below 0°C. This process is used to ensure
that the device works properly even at low
temperatures; it lasts between 60 and 105
minutes depending on the model.