Daktronics Galaxy AF-3080 Series, Display Manual

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Loop-Back Test: To perform a loop-back, for testing purposes only, connect the
following using copper conductor jumpers.
J1 25 Pin DB-F
PIN OPERATION
2 TX-P (out)
3 RX-P (in)
7 GND
Note: This test should be performed with only one jack at a time. Do not connect loop
back to more than one jack at a time.
J2 and J3 J4 and J5
TX-N to RX-N
OR
RX-P to TX-P
TX-P to RX-P RX-N to TX-N
0A-1127-0239 – Fiber
The following tables give the jack pin-outs for a fiber signal converter:
JACK OPERATION J1 – 25 Pin DB-F
J2 TX1 (out) PIN OPERATION
J3 RX1 (in) 2 TX-P (out)
J4 TX2 (out) 3 RX-P (in)
J5 RX2 (in) 7 GND
Loop-Back Test: To perform a loop-back, for testing purposes only, connect the
following using a fiber optic cable jumper.
J2 and J3 or J4
and J5
TX to RX
Serial Cable (W-1249)
This table lists the pin connections when using a serial cable (W-1249).
DB9-F DB25-F
Pin 3 – TX Pin 2 – TX
Pin 2 – RX Pin 3 – RX
Pin 5 – GND Pin 7 - GND
Serial Adaptor (A-1603)
DB9-F DB25-M
Pin 3 – TX Pin 2 – TX
Pin 2 – RX Pin 3 – RX
Pin 5 – GND Pin 7 - GND
B-2 Appendix B: Signal Converter