Specifications

October 8, 2003 Networking Alpha Signs (9700-0112C)
46 Network cables and adapters
RJ12-to-DB25 adapter (pn 4370-0001C)
Description
Typical use
Used as part of an RS232 connection between a PC with a DB25 (25-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
DB25 (female)
Alpha sign
PC running
messaging software
To
sign’s
RS232
port
To PC’s
RS232
port
6-connector
RS232
data cable
(pn 1088-8625 or
pn 1088-8627)
RJ12-to-DB25
connector
(pn 4370-0001C)
16
DB25
(female)
12345
678910111213
14
15
16171819202122232425
RJ12
(female)
DB25
(female)
PIN 3
PIN 4
PIN 1
RXD
TXD
GND
TXD
RXD
RTS
CTS
GND
DSR
DCD
DTR
PIN 2
PIN 3
PIN 4
PIN 5
PIN 7
PIN 6
PIN 8
PIN 20
RJ12
(female)