Specifications

Wired networks 11
Networking Alpha Signs (9700-0112C) October 8, 2003
RS485—multiple signs
Use this setup when you want to connect a PC to more than one sign (two or more signs to one PC):
Item Part # Description
A 1088-9107 End-of-line (EOL) terminator
B — Ferrite (ferrite end towards sign)
C
1088-8624 8-foot RS485 cable
1088-8636 1-foot RS485 cable
D 4331-0602 Modular Network Adapter
E
1088-8002 1000-foot RS485 shielded plenum cable
7122-0283 100-foot RS485 shielded plenum cable
7122-0284 100-foot RS485 outdoor-rated shielded plenum cable
F 1088-1111
Converter Box III with a Converter Box III AC Adapter:
pn 4011-1201 (120 volt)
pn 4011-4201 (230 volt)
G 1088-8634 Type A9 RS232 cable (connects Converter Box III to PC RS232 port)
H — DB25-to-DB9 adapter (if PC has a 9-pin RS232 port)
NOTE:The information below the dotted line is the hardware to be added when you want the Converter
Box III in the middle of the network. In this situation, the Converter Box III must be set to Unterminated.
To sign’s
RS485 port
Alpha sign
Alpha sign
Alpha sign
Alpha sign
Alpha sign
Set switch to
Terminated.
To PC’s
RS232 port
PC running messaging
software
To sign’s
RS485 port
A
B
C
D
E
BD
F
H
To RS485
connector
To sign’s
RS485 port
To sign’s
RS485 port
A
C
D
E
(See NOTE below)
To RS485
connector on
B
C
To sign’s
RS485 port
G
B
Converter Box III
(Set switch to
Unterminated.)