Daktronics AF-3020-7.6-R,A - Manual (Page 36)

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 & J3 J4 & 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 & J3 or J4 & 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
Appendix B: Signal Converter B-2