Cisco Cisco VN 2900 Network Adaptation Interface Installation Guide

Each port has two LED indicators, described in 

EHWICs with PoE support inline power delivery over standard CAT5 cables to IP phones and access 
points. To support inline power, the router platform must provide the inline power supply to the EHWIC.

The Cisco Gigabit EtherSwitch EHWICs support standard legacy Cisco phones, IEEE 802.3af phones, 
and 20W ePOE phones.

The maximum power for a single wide EHWIC is 120 watts; and the maximum power for a double wide 
EHWIC is 125 watts.

Check the hardware installation guide for your platform power specifications.

See Installing Cisco Interface Cards in Cisco Access Routers at 

for instructions on how to install the Cisco Gigabit EtherSwitch EHWIC in your router.

Only trained and qualified personnel should be allowed to install, replace, or service this equipment. 
Statement 1030

To avoid electric shock, do not connect safety extra-low voltage (SELV) circuits to telephone-network 
voltage (TNV) circuits. LAN ports contain SELV circuits, and WAN ports contain TNV circuits. Some 
LAN and WAN ports both use RJ-45 connectors. Use caution when connecting cables. Statement 1021

POE

Green

Off—No external device detected or PoE is not installed.

On—Providing power to the device.

Amber

On—Power delivery fault because of one of the following reasons:

Power required by the device exceeds the maximum power 
configured for the port. 

Total power used has reached the maximum limit for the 
card. 

Power requirement exceeds the total allowed by the 
platform.

Blinking—The port is configured to power inline never.

LNK

Green

Off—Ethernet port is not connected.

On—Ethernet port is connected.