Specifications

Network cables and adapters 39
Networking Alpha Signs (9700-0112C) October 8, 2003
10-foot modem-to-Converter Box III Type B9 RS232 cable (pn 1088-8635)
Description
Typical use
Used to connect a sign to a Modular Network Adapter as part of an RS485 network:
Pinouts
Item Part # Description
A — Transmitting modem
B — Receiving modem
C 1088-8635 10-foot Modem-to-Converter Box RS232 cable, DB9 to DB25
D 1088-1111
Converter Box III with a Converter Box III AC Adapter:
pn 4011-1201 (120 volt)
pn 4011-4201 (230 volt)
E 4331-0602 Modular Network Adapter
F
1088-8624 8-foot RS485 cable
1086-8636 1-foot RS485 cable
Left side
DB9 (male)
Right side
DB25 (male)
A
C
D
To PC’s
RS232 port
To next sign
E
F
PC running messaging
software
Alpha sign
B
DB9
(male)
54321
9876
DB25
(male)
131211109
87654321
252423222120191817161514
DB9
(male - to Converter Box III)
DB25
(male - to modem)
PIN 1
PIN 2
PIN 3
PIN 4
PIN 5
PIN 6
PIN 7
PIN 8
PIN 9
not connected
not connected
not connected
not connected
DCD
RXD
TXD
DTR
GND
DSR
RTS
CTS
DCD
RXD
TXD
DTR
GND
PIN 8
PIN 2
PIN 3
PIN 20
PIN 7