ALPHA
®
Solar
™
Sign
14
Basic sign operation: Connecting a sign to a personal computer
Item
Part #
Description
A
—
One end of the RS485 cable connects here.
B
1088-8000 RS485 cable connects sign to the RS485 connector block on the Converter Box III.
C
1088-1111 Converter Box III.
D
1088-8634 10 foot, 9 pin-to-9 pin, type “A9” RS232 cable.
E
—
Serial port DB25-to-DB9 adapter (may be required by your computer).
9 VOLTS AC
~NOMINAL
RS-232
SHIELD
RS-485(+)
BLACK
RS-485( )
RED
NOT A
TELEPHONE
CONNECTION
RS-485
UNTERMINA
TED
TERMINA
TED
Front
view
Top view
PC running
AlphaNet plus™ for
Windows® software.
To one of
the PC’s
COM
(RS232)
ports.
A
B
C
D
E
Set switch to
Unterminated
.
Data communication through an RS485 converter box interface
Содержание Alpha
Страница 6: ...vi ...