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32 Status Indicators
Section 2: Product overview Reference, Installation, and Operations Manual
June 2013 3-9000-743 Rev S
Option Board General Status Indicators
As shown in Figure 2-18, the Option Board provides three general status indicators as
summarized in Ta bl e 2-7 .
Figure 2-18 Mark III Option Board General Status LED Indicators
Table 2-6 CPU Board Communication Status Indicators
Label Description Color
Activity
Indication
No Activity
Indication
PORT A RX Port A receive status Green LED On
Blinking
LED Off
PORT A TX Port A transmit status Green LED On
Blinking
LED Off
PORT B RX Port B receive status Green LED On
Blinking
LED Off
PORT B TX Port B transmit Green LED On
Blinking
LED Off
LINK Ethernet port connection status Green LED On
Solid
LED Off
Table 2-7 Option Board General Status Indicators
Label Description Color Indicator
24V CURR LIMIT Indicates that the 24V source is current limited (approx. 70 mA) Red
+24V Indicates that the 24V supply is OK Green
3.3V Indicates that the 3.3V supply is OK Green