Videotec ULISSE PLUS - Manual (Page 24)

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nstruc
tions manual
22
7.4.5.1 RS485 RX line
The line RS485-1 will operate according to the
settings in the Address, Baudrate and Protocol
dip-switch.
The RS485-2 serial line is not used.
Personal
Computer
Max 1200m Max 10m
RS485-1 RS232
Control
Keyboard
Fig. 39
h The system is of the TNV-1 type, do not
connect it to SELV circuits.
7.4.5.2 RS422 line (RS485-1 RX and RS485-2
TX)
This setting allows full duplex communication
according to the RS422 standard. This means that
both the RS485-1 and RS485-2 lines are used.
Max 1200m
RS485-1 RS485-2
Control
Keyboard
Fig. 40
j This function is only available for
bi-directional protocols (e.g. PELCO,
AMERICAN DYNAMICS, Macro, etc.).
7.4.4 Setting the address
The ULISSE address can have a setting from 1 to 255.
Binary code is used to select the address, using the
8 dip-switches at the top right ("17 Appendix A - Dip-
switch address table", page 52).
7.4.5 Serial communication lines
The product is designed with two RS485 serial
communication lines and one RS232 serial line, which
can have various settings according to the positions
of dip-switches 10 and 9 on the Serial and Address
selector.
j When the dip-switch rocker is up it
represents the value 1 (ON) while if it is
down it represents the value 0 (OFF).
SERIAL AND ADDRESS, SERIAL LINE CONFIGURATION
DIP
10
DIP
9
DIP
8-1
Configuration
OFF OFF - It allows the one-way communication
on RS485-1 line ("7.4.5.1 RS485 RX line",
page 22).
OFF ON - It allows the full-duplex communication
according to RS422 standard ("7.4.5.2
RS422 line (RS485-1 RX and RS485-2 TX)",
page 22).
ON OFF - It allows the cascade configuration of
different devices. The signal is repeated
from every units ("7.4.5.3 RS485-1
line reception, RS485-2 line repetition",
page 23).
ON ON - It allows the two-ways, half-duplex,
communication on RS485-1 line ("7.4.5.4
RS485 TX/RX line", page 23).
Tab. 10