Cisco 2600 Series Operation Manual page 34

1-Port and 4-Port Ethernet Modules
Figure 4-4
ETHERNET
4E
ETH 3
1-Port and 4-Port Ethernet Network Module LEDs
This section describes the LEDs for the 1-port and 4-port Ethernet network module.
Figure 4-5 shows the 4-port Ethernet network module's LEDs, however these apply to the
1-port Ethernet network module as well.
All network modules have an enable (EN) LED. The enable LED indicates that the module
has passed its self-tests and is available to the router.
Each Ethernet port has two LEDs. The activity (ACT) LED indicates that the router is
sending or receiving Ethernet transmissions. The link (LINK) LED indicates that the
Ethernet port is receiving the link integrity signal from the hub (10BaseT only).
4-4 Cisco Network Modules Hardware Installation Guide
Connecting an Ethernet 10BaseT Port to a Hub
ETH 2 ETH 1
ETH 0
3 2 1
0
LINK
ACT
Ethernet 10BaseT
port (RJ-45)
10BaseT cable
EN
10BaseT hub