TRC-8546 LEDs

The TRC-8546 includes two LEDs per port to help you monitor hardware and bus status. LED 1 primarily indicates whether the hardware is currently in use. LED 2 primarily indicates the activity information of the connected bus. Each LED can display two colors (red or green), which display in the following four patterns:

Table 2. LED Pattern Definitions
Pattern Meaning
Off No LED illumination
Solid LED fully illuminated
Blink Blinks at a constant rate of several times per second
Activity Blinks in a pseudo-random pattern
Table 3. LED Pattern Indications
Condition/State LED 1 LED 2
Port identification Blinks green Blinks green
NI-XNET catastrophic error Blinks red Blinks red
No open session on hardware Off Off
Open session on hardware, port is properly powered, and hardware is not communicating Solid green Off
Open session on hardware, port is missing power Solid red Off
Hardware is communicating Solid green Activity green (returns to idle/off one second after last TX or RX)