Specifications

October 8, 2003 Networking Alpha Signs (9700-0112C)
42 Network cables and adapters
RJ12-to-DB9 adapter (pn 1088-9108)
Description
Typical use
Used as part of an RS232 connection between a computer with a DB9 (9-pin) COM port and a sign so that
messages can be sent to the sign from the PC:
Pinouts
Left side
RJ12 (female)
Top
Right side
DB9 (female)
Alpha sign
PC running messaging
software
To sign’s
RS232
port
6-connector RS232
cable
(pn 1088-8625
or
1088-8627)
RJ12-to-DB9
connector
(pn 1088-9108)
To PC’s
RS232
port
RJ12
(female)
DB9
(female)
12345
6789
RJ12
(female)
DB9
(female)
PIN 3
PIN 4
PIN 1
RXD
TXD
GND
TXD
RXD
RTS
CTS
GND
DSR
DCD
DTR
PIN 3
PIN 2
PIN 7
PIN 8
PIN 5
PIN 6
PIN 1
PIN 4
16