Regulus uREG, User Manual

Page: 93 / 107

uREG User Manual
93
16.1.4. PN-485 INTERFACE (PANEL)
As already mentioned, the operator panel in
u REG
can be operated remotely → connected
to the central unit by a cable with a length up to 15 m.
Communication involves a separated
RS-485 interface which is symmetrically reproduced on
three side of the IF-x module (installation options → see 7 Modules and 8 Panel ).
PN-485 interface lines are arranged in a 9-wireDB9F connector (female) as follows:

+12V pin 1 - panel supply,

GND pin 5 - ground,

-12V pin 6 - panel supply,

Internal pin 4 - for internal use,,

+3.3 V pin 9 - panel supply

A pin 8 - Data Input (+),

B pin 7 - Data Input (–),

Y pin 2 - Data Output (+),

Z pin 3 - Data Output (–).
Transmission parameters and the data interchange protocol are specified by firmware and are
not to be tampered with by the user.
Communication with the panel can be disabled using the administrator’s setting
Disable panel
in Auxiliary settings (via
Monitor3
). Then, the device able to work without the panel (panel
presence in the system will not be checked or reported).
CAUTION:
Each change in the setting must be applied by momentary disconnection and reconnection of
auxiliary power.