Cabling and Verifying Media Cards
Ethernet media cards
GRF 400/1600 Getting Started - 1.4 Update 2
October, 1998
5-27
Ethernet card LEDs
Each Ethernet port has a set of four LEDs that describe the presence of a link and its type, the
type of duplex or collision interface implemented, and port transfer activity.
An 8-port Ethernet faceplate and LEDs are shown in Figure 5-25.
Figure 5-25. Ethernet media card faceplate and LEDs
LEDs for both types of Ethernet cards are described in Table 5-9.
Receive data
10/100-Q
4MB-TX
PWR
ST
A
T
100
COL
RXD
TXD
1
0
F
D
X
7
6
100
COL
RXD
TXD
1
0
F
D
X
2
100
COL
RXD
TXD
1
0
F
D
X
1
100
COL
RXD
TXD
1
0
F
D
X
0
100
COL
RXD
TXD
1
0
F
D
X
Sending data
Duplex / collision condition
Status
Link type
Table 5-9. Ethernet media card LEDs
LED
Description
PWR
This green LED is on when GRF power is on.
STAT
During normal operations, this LED is green.
If an error condition is detected, this LED turns amber and remains on.
100
This LED is green for a 10 megabit link.
This LED is amber for a 100 megabit link.
This LED remains off (dark) when there is no viable link.
COL
This LED reads black (dark) for a half-duplex interface.
This LED is amber for a half-duplex interface when encountering a
transmission collision condition.
This LED is green for a full-duplex interface.
RXD
This green LED indicates this port is receiving data.
TXD
This green LED indicates this port is transmitting data.
