Cisco XR 12406 Installation Manual page 128

Manually Booting the System
PRP Interfaces Using the PRP LEDs
Cisco XR 12406 Router Installation Guide
3-40
The PRP faceplate has eight device or port LED activity indicators
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
ETH 0
LINK Indicates link activity
EN Indicates the port is enabled
TX Indicates data transmission
RX Indicates data reception
Chapter 3 Installing the Cisco XR 12406 Router
ETH 1
(Figure 3-23).
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