American Dynamics SpeedDome Ultra VI Installation And Service Manual page 22

6. Observe green power LED on I/O board
(Figure 21). Is green LED off or not on steady?
YES Verify 24Vac cable is properly attached. If
OK, replace I/O board or ship entire dome
to the GSC.
NO Go to step 7.
P7 Connector (AC in)
Pin Color Designation
1 Black 24 Vac
2 Red Ground
3 White 24 Vac
7. Observe yellow communication LED on I/O
board (Figure 21). Is yellow LED flashing?
YES Go to step 8.
NO Verify cable is properly attached by
referring to table in step 9, page 18. If OK,
replace I/O board or ship dome and base
to GSC.
Figure 21. I/O board switch and
LED locations
Comm. LED
Power LED
SPEEDDOME ULTRA VI
INSTALLATION AND SERVICE GUIDE
SW1
RS422 Test
Pushbutton
P1 connector (Manchester data)
Pin Color
1-4
5 Black
6 White
P1 connector (RS-422 data)
Pin Color
1 Orange
2 Green
3 Yellow
4 Brown
5-6
P1 connector (SensorNet 485 data)
Pin Color
1-4
5 Orange
6 Yellow
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 21) and observing nearby red and green
LEDs. These LEDs indicate the following:
Constant green,
Blinking red
Constant green,
No red
Constant red,
Blinking green
Blinking red,
Green off
Both LEDs off
22
of 34
Designation
Not used.
Manchester (+)
Manchester (–)
Designation
RS-422 Data In High (+)
RS-422 Data In Low (–)
RS-422 Data Out High (+)
RS-422 Data Out Low (–)
— Not used.
Designation
— Not used.
SensorNet 485
SensorNet 485
Comm. line correctly
wired.
"Data In -" shorted to
ground.
"Data In +/ -" wires
reversed.
"Data In +" shorted to
ground.
"Data In +/ -" wires
shorted or open.
8000-2830-03, REV. C