REMOTE CONTROL
37
Multi-Drop mode
Operation
1.
Check the F-89 (System version and build date)
settings first on all units. The two parameters O
and P (Option Module) must be the same on all
units before any multiple unit connection can
be established.
Example: F-89 O:00, P:01.
2.
All units must be powered down before
starting the Multi-Drop mode configuration
3.
Connect the first unit’s LAN, USB or GPIB port
to a PC.
4.
Connect the OUT port on the first unit to the IN
port of the second unit using the master serial
link cable.
5.
Connect all the remaining units between the
OUT port and the IN port with the slave serial
link cable until all the desired units have been
daisy-chained together.
RS 485 / 232
OUT
Unit #1
RS 485 / 232
OUT
IN
Unit #2
RS 485 / 232
OUT
IN
Unit #N
End terminal
connector
To PC
Master serial link
cable (gray plug)
Slave serial link
cable (black plug)
USB
LAN
GPIB
6.
Terminate the OUT port of the last unit with the
end terminal connector.
7.
Power up all slave units.
8.
Set the addresses of all slave units using the
F-76 parameter.
