Ethernet Leds - Cisco CISCO2650 - 2650 Router Hardware Installation Manual

Chapter 3 Connecting Ethernet, Fast Ethernet, and Token Ring Network Modules

Ethernet LEDs

This section describes Ethernet module LEDs.
as an example.
All network modules have an enable (EN) LED. This 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 (10BASE-T only).
Figure 3-8
ETHERNET
4E
Fast Ethernet Network Modules
Fast Ethernet connections are provided on 1-port Fast Ethernet modules, and on 1-port Fast Ethernet,
2-port Fast Ethernet, and 1-port Fast Ethernet 1-port Token Ring 2-WAN card slot modules.
The Fast Ethernet-PRI modules described in
Note
Modules,"
1-Port Fast Ethernet Modules
The following network modules provide Fast Ethernet interfaces:
•
•
OL-2485-20
Ethernet Network Module LEDs (Typical)
ETH 3 ETH 2 ETH 1
also provide a Fast Ethernet interface. See that chapter for further information.
1-port Fast Ethernet network module with TX connector, Cisco product number NM-1FE-TX. (See
Figure 3-9.) This module provides an RJ-45 connector for direct connection to 100BASE-T Ethernet
networks.
1-port Fast Ethernet network module with FX connector, Cisco product number NM-1FE-FX. (See
Figure 3-10.) This module provides a duplex SC-type fiber-optic port for direct connection to
100BASE-FX Ethernet networks.
Figure 3-8 shows 4-port Ethernet network module LEDs
ETH 0
3 2 1 0
LINK
ACT
LEDs
Chapter 4, "Connecting Fast Ethernet-PRI Network
Cisco Network Modules Hardware Installation Guide
Fast Ethernet Network Modules
EN
Enable
LED
3-5