Cisco XR 12406 - Manual (Page 128)

Chapter 3 Installing the Cisco XR 12406 Router
Manually Booting the System
3-40
Cisco XR 12406 Router Installation Guide
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PRP Interfaces Using the PRP LEDs
The PRP faceplate has eight device or port LED activity indicators ( Figure 3-23 ).
Each LED goes on when its corresponding PCMCIA slot is accessed. The ports
are:
• Two PCMCIA slot activity LEDs labeled SLOT-0 and SLOT-1.
• Four RJ-45 Ethernet port activity LEDs. These LEDs are used by the RJ-45
Ethernet connectors. Each connector includes four LEDs that indicate link
activity (LINK), port enabled (EN), data transmission (TX), and data
reception (RX).
• Two Ethernet port-selection LEDs labeled PRIMARY. These two LEDs,
when on, identify which of the two Ethernet connections is selected. Because
both ports are supported on the PRP, the LED on port ETH0 is always on. The
ETH1 LED goes on when it is selected.
Figure 3-23 PRP LEDs
LINK Indicates link activity
EN Indicates the port is enabled
TX Indicates data transmission
RX Indicates data reception
RX
TX
PRIMARY
SLO
T-1
SLO
T-
0
LINK
EN
RX
TX
ETH 1 ETH 0
LINK PRIMARY
EN
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