4 LEDs
The TXMC387 provides a
Link/Activity LED
and a
Speed LED
for each of the two channels for quick visual
inspection and debugging.
LED indicators are visible on the back side of the TXMC387 due to the fact that XMCs are mounted headfirst
on the carrier card. A marking is placed close to each LED to indicate the Ethernet Port that corresponds to
the LED.
Figure 4-1 : LEDs (TXMC387 bottom view)
Link/Activity LED
(green)
Description
OFF
No cable is connected or no link is established
ON
A link is established at the corresponding Ethernet Port
BLINKING
Indicates activity: The Ethernet Port transmits or receives data
Speed LED
(multicolor)
Description
OFF
The speed of the link is 100 Mbit/s
ORANGE
The speed of the link is 1 Gbit/s
GREEN
The speed of the link is 10 Gbit/s
Table 4-1 : LED Status
5 Temperature Range
To be able to operate the TXMC387 at the specified maximum card edge temperature its thermal connection
to the thermal interface of the carrier board has to be as good as possible.
Both, the Primary Thermal Interface and the Secondary Thermal Interface should be connected to the carrier
board and if possible the whole heat sink of the TXMC387 should be thermally connected to the thermal
interface of the carrier.
TXMC387 User Manual Issue 1.0.0
Page 9 of 12
