CPC 485 Manual - Halaman 4

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6. Hardware Setup
The network and mode switches are located under the bottom access panel.
6.1 Netnvork Switches set the device lD and baud rate.
Switches
1
thru 5 define the board device number
(1-16).
Most applications are set
for lD=1.
POSITION
!D
12345
0
00000
l=ON
1
10000
2=OFF
2
01000
3
1
1000
Switches 6 and 7 set the baud rate (normally 4800
baud).
Set
the baud rate using the
table below.
POSITION
BAUD
AJ.
\-'
12oo
o
o
24W
10
l=ON
4800
01
2=OFF
9600
1
1
6.2
Jumpers JU3, JU4, and
JUS set
terminating resistance for the
RS 485
communications bus.
DEVICES AT THE ENDS OF THE 485 BUS WIHING REQUIRE TERMINATING
RESISTORS FOR PROPER OPERATION OF THE ENTIRE
NETWORK.
IF
THE
NETWORK ENDS AT THE 485 ALARM, MOVE THE TEBMINATING JUMPERS
FUHTHEST AWAY FROM THE 48s TEHMINAL BLOCK (TOP POSITION).
These
jumpers are located on the 485A board right
next
to the BS-485 communication
terminal
blbck.
The
jumper positions depend
onhow
the Expansion Communication
Bus is wired.
6.3 Printer Port Setup
Mode switch
1
should be
ON
to
enable the printer. OFF disables the printer.
6.4
Audible Alarm.
Mode switch 2 enables/disables the audible
alarm.
Off ENABLES the audible alarm.
3