Francis A7290, User Instruction & Installation Manual

Page: 38 / 59

FBUS INTERFACE UNIT (if supplied)
OVERVIEW
Francis Searchlights FBUS data system facilitates control of up to 30
searchlights from multiple control stations. To provide the required control
response whilst maintaining a low data rate for extended transmission
distance, the FBUS data system involves precisely timed control signals.
The FBUS interface offers a simplified communication interface to the FBUS
data system over a number of different physical layer communication
standards and data rates. The system also facilitates long range
communications over LAN / Internet.
When used with Francis searchlights FBUS Control software the FBUS
interface can control networks of lamps over local communication systems or
globally via the internet.
POWER / FBUS CONNECTION
The FBUS interface obtains a supply from the FBUS data system, no external
power supply is required. The interface connects to the four wire FBUS
system like any FBUS system component. The four-wire interface provides
24V supply and RS485 communications with FBUS.
EXTERNAL INTERFACE AND CONNECTIONS
The FBUS interface supports RS422 (4 wire), RS485 (2 wire), USB (VCP)
and UDP.
Connections are detailed below; -
RS485
0 Common 0V
+ Data +
- Data
–
RS422
0 Common 0V
Out + Data + out from interface
Out - Data
– out from interface
In + Data + into interface
In - Data
– into interface
USB
Type B Socket
Ethernet (UDP)
RJ45