Daktronics RS-422 Communication - Manual (Page 15)

RS-422 Communication Manual
9
Sig ter (0A-1127-0255)
The fo
RS-422 Lo
Note: T
a
loop-bac
into th
connections
W-1249
nal Conver
llowing tables list the jack pin-outs for a wire signal converter:
op-Back Test (Outdoor Displays)
his test should be performed with only one jack at a time. Do not connect
k to more than one jack at a time.
Serial Cable (W-1249)
To complete the test, the serial cable must be plugged
e signal converter. This table lists the pin
when using a serial cable (Daktronics part#
) below.
DB9-F DB25-F
Pin 3 – TX Pin 2 – TX
Pin 2 – RX Pin 3 – RX
Pin 5 – GND Pin 7 - GND
Loop-Back Test: To perform a loop-back, for testing
purposes only, use the spare plug in the signal converter
and connect the following using copper conductor
jumpers. Refer to Figure 10 on the right. (To eliminate
the display, pull out the phoenix plug with the signal
wires connected into it.)
gnal Converter
Figure 9: RS-232/RS-422 Si
J1 – 25 Pin DB-F
PIN OPERATION
2 TX-P (out)
3 RX-P (in)
7 GND
J2 and J3 –
RJ/45
PIN OPERATION
1 GND
2 TX-N
(out)
3 TX-P (out)
4 RX-N (in)
5 RX-P (in)
6 GND
J4 and J5 –
Phoenix
PIN OPERATION
1 GND
2 RX-P
(in)
3 RX-N (in)
4 TX-P (out)
5 TX-N (out)
6 GND
Figure 10: Jumpers at RS-232/RS-
422 Signal Converter
J2 and J3 J4 and J5
(Pin 5) TX-N to
(Pin 3) RX-N
OR (Pin 2) RX-P to
(Pin 4) TX-P
(Pin 4) TX-P to
(Pin 2) RX-P
(Pin 3) RX-N to
(Pin 5) TX-N