American Dynamics SpeedDome Ultra VII EIS Installation And Service Manual page 24

7. Observe yellow comm. LED (CR28) on I/O
board (Figure 23). Is the LED on or flashing?
YES Go to step 8.
NO Verify cable is properly attached by
referring to table in step 9, page 17. If OK,
replace I/O board or contact your sales
representative for repair
Figure 23. I/O board switch and LED locations
RS-422 Test
Pushbutton
Comm. LED
Power LED
P1 connector (Manchester data)
Pin Color Designation
1-4 Not used.
5 Black Manchester (+)
6 White Manchester (–)
P1 connector (RS-422 data)
Pin Color Designation
1 Orange RS-422 Data In High (+)
2 Green RS-422 Data In Low (–)
3 Yellow RS-422 Data Out High (+)
4 Brown RS-422 Data Out Low (–)
5-6 — Not used.
P1 connector (SensorNet 485 data)
Pin Color Designation
1-4 — Not used.
5 Orange SensorNet 485
6 Yellow SensorNet 485
SPEEDDOME ULTRA VII EIS DAY/NIGHT CAMERA DOME
INSTALLATION AND SERVICE GUIDE
instructions.
SW1
24 of 37
8. If using RS-422 network and an I/O board is
used, check comm. line connections by
pressing and holding data test switch SW1
(Figure 23) and observing nearby red (CR34)
and green (CR35) LEDs. These LEDs indicate
the following:
Comm. line correctly
Constant green,
Blinking red wired.
Constant green, "Data In -" shorted to
ground.
No red
Constant red, "Data In +/ -" wires
Blinking green reversed.
Blinking red, "Data In +" shorted to
Green off ground.
Both LEDs off "Data In +/ -" wires
shorted or open.
9. Check spring finger connector on I/O board by
connecting housing and eyeball assembly to
original base to verify contact between spring
fingers and CPU board (under cap). Does dome
produce video and respond to commands?
YES Spring fingers may not have seated
properly. Reconnect housing and eyeball
assembly.
NO Replace I/O board.
If routine troubleshooting did not solve the
problem, the manufacturer strongly
recommends you contact your sales
representative for repair instructions.
If you must perform detailed troubleshooting,
use extreme care when disassembling parts!
See "Detailed Troubleshooting," next.
8200-0184-14, REV. A