Specifications

October 8, 2003 Networking Alpha Signs (9700-0112C)
24 Network interfaces
Item Part # Description
A 1088-9107
End-of-line (EOL) terminator (must be plugged into the RS232 or TTL plug on last
sign)
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 — Xircom PortGear USB-to-DB9 serial adapter
NOTE 1: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.
NOTE 2:The internal jumper in some Alpha signs must be set to RS485. See “Appendix D—Setting the
RS232/RS485 jumper” on page 53.
To sign’s
RS485 port
Alpha sign
Alpha sign
Alpha sign
Alpha sign
Alpha sign
Set switch to
Terminated.
PC running messaging
software
To sign’s
RS485 port
A
B
C
D
E
BD
F
To RS485
connector
To sign’s
RS485 port
To sign’s
RS485 port
A
C
D
E
(See NOTE 1 below)
To RS485
connector on
B
C
To sign’s
RS485 port
G
Multiple sign connection
Converter Box III.
(Set switch to
Unterminated.)