Specifications

Network cables and adapters 37
Networking Alpha Signs (9700-0112C) October 8, 2003
50-foot RS232 cable (pn 1088-8627)
Description
Typical use
Used as part of an RS232 connection between a PC with a DB25 (25-pin) or DB9 (9-pin) COM port and a sign so
that messages can be sent to the sign from the computer:
Pinouts
Left jack
RJ12 (male)
Right jack
RJ12 (male)
Alpha sign
PC running messaging
software
To sign’s
RS232
port
6-connector RS232
cable
(pn 1088-8627)
RJ12-to-DB9
connector
(pn 1088-9108)
or
RJ12-to-DB25
connector
(pn 4370-0001C)
To PC’s
RS232
port
RJ12
(male)
61
RJ12
(male)
61
RJ12
(from sign)
RJ12
(to computer)
PIN 1
PIN 2
PIN 3
PIN 4
PIN 5
PIN 6
GND
RS485(+)
RXD
TXD
RS485(-)
+5V
Blue
Yellow
Green
Red
Black
White
GND
RS485(+)
RXD
TXD
RS485(-)
+5V
PIN 1
PIN 2
PIN 3
PIN 4
PIN 5
PIN 6
Refer to your sign’s installation manual for maximum
current that can be drawn on.