Ositech comm 614006-001 - Manual (Page 19)

User’s Guide and Reference 2 - 11
Hardware Installation
Media Access Module LED Indicators
The Media Access Module has two LED indicators used to provide a visual
indication of the state of the network link. The LED indicators will only be
operational once the Trumpcard network driver has been loaded or during
Diagnostic testing.
Activity LED (RED)
The Activity LED will flash whenever any network activity is detected by
the Media Access Module. The Activity LED can be used as a simple
method of determining if the Media Access Module is exchanging data with
the network.
Link LED (GREEN)
The Link LED lights whenever a twisted pair connection between the
Media Access Module and the 10BaseT concentrator has been made. The
Link LED is not used for 10Base2 thin coax connections. If the Link LED is
not lit this would indicate that a connection between the Media Access
Module and the 10BaseT concentrator has not been detected. Verify the
wiring and make sure that a Trumpcard network driver has been loaded.