Dip3 Configuration; Address Configuration; Setting Of The Serial Communication Lines; Dip4 Configuration - Videotec ULISSE Manuel D'instructions

8.12.4 DIP3 configuration

When the switch rocker is up it represents
the value 1 (ON). When the dip-switch
rocker is down it represents the value 0
(OFF).
Fig. 60

8.12.4.1 Address configuration

Switches from 1 to 8 are used to configure the unit
address (from 1 to 255).
Binary code is used to select the address (A Appendix
- Address table, page 74).
8.12.4.2 Setting of the serial communication
lines
The product is supplied with two RS-485 serial
communication lines and one RS-232 serial line.
Switches 10 and 9 are used to configure the serial
lines.
DIP3 CONFIGURATION
Description
One-way communication on RS-485-1
line Two-way communication on
RS-232 line.
Full-duplex communication according
to standard RS-422.
Connection of several cascade devices.
Signal is regenerated by each unit.
Two-way communication, half-duplex,
on RS-485-1 line.
Tab. 16
For further information refer to the relative
chapter (8.12.6 Installation examples, page
35).
34

8.12.5 DIP4 configuration

The board has two switches used to configure the
serial lines terminations (120 Ohm).
Fig. 61
Every unit that is situated at the end of a line must be
terminated using the appropriate switch in order to
prevent signal reflection and distortion.
Switches 1 and 2 terminate serial lines RS-485-1 and
RS-485-2 respectively.
DIP4 CONFIGURATION
Serial line
RS-485-1 line
SW 10 SW 9
RS-485-2 line
OFF OFF
Tab. 17
OFF ON
ON OFF
ON ON
This DIP is set following the inverse
procedure compared to those previously
performed. When the switch rocker is up
it represents the value 0 (OFF). When the
dip-switch rocker is down it represents the
value 1 (ON).
SW 2 SW 1 Description
– ON
– OFF
ON –
OFF –
MNVCUPTDMB_2104_EN
Terminated
Not terminated
Terminated
Not terminated