Cisco Cisco 1900 2900 3900 Series 8-Port Gigabit Ethernet HS-WIC with PoE Information Guide
Q&A
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Cisco EtherSwitch 4- and 9-Port High-Speed WAN Interface Cards:
Cisco High Speed WAN Interface Cards
Cisco High Speed WAN Interface Cards
Overview
Q.
What are the 4- and 9-port Cisco
®
EtherSwitch
®
high-speed WAN interface cards (HWICs)?
A.
The 4- and 9-port Cisco EtherSwitch HWICs are modular HWICs that provide line-rate Layer 2 switching
across Ethernet ports using Cisco IOS
®
Catalyst
®
Software. The Cisco 4-port EtherSwitch HWIC has four 10/100
switched Ethernet ports, with options for inline power support on all four ports. The Cisco 9-port EtherSwitch HWIC
has nine 10/100 switched Ethernet ports, with options for inline power support on eight of the ports. The ninth port
does not support inline power but can be used as a regular switch port for trunking and other normal data
applications. Note: The optional inline power support on the 4- and 9-port HWICs is offered on the Cisco 1941, 2800,
2900, 3800 and 3900 series. it is not offeredon the Cisco 1841 of the Cisco 1800 Series (modular). Features such
as port autosensing, quality of service (QoS), and VLAN support from 802.1P and 802.1Q standards, and 802.1D
spanning tree protocols are standard on the Cisco EtherSwitch HWIC. The Cisco EtherSwitch HWICs are available
in standard 4- or 9-port 10/100BASE-TX switch HWIC and Power-over-Ethernet (PoE) configurations. The PoE
configurations consist of a 4- or 9-port 10/100BASE-TX switch and a 4- or 8-port inline power module daughter card.
The inline-power Cisco EtherSwitch HWIC can power Cisco IP phones, Cisco wireless access points, or any other
IEEE 802.3af-compliant device. The inline power feature on the Cisco 2800 and Cisco 3800 series of integrated
services routers requires the use of a field-replaceable inline power supply.
Table 1 lists the platforms supported by the 4- and 9-port HWICs.
Table 1.
Supported Platforms for 4- and 9-Port Cisco EtherSwitch HWICs
Chassis
4-Port Cisco EtherSwitch HWIC
9-Port Cisco EtherSwitch HWIC
Internal Inline Power Supply (optional)
Cisco 1841
Yes, 2 HWICs per router
No
No
Cisco 1941
Yes, 2 HWICs per router
Yes, 1 HWIC per router
Yes
Cisco 1941W
No
No
Yes
Cisco 2801
Yes, 2 HWICs per router
Yes, 2 HWICs per router
Yes
Cisco 2901
Yes, 2 HWICs per router
Yes, 2 HWIC per router
Yes
Cisco 2811
Yes, 2 HWICs per router
Yes, 2 HWICs per router
Yes
Cisco 2911
Yes, 2 HWICs per router
Yes, 2 HWIC per router
Yes
Cisco 2821
Yes, 2 HWICs per router
Yes, 2 HWICs per router
Yes
Cisco 2921
Yes, 2 HWICs per router
Yes, 2 HWIC per router
Yes
Cisco 2851
Yes, 2 HWICs per router
Yes, 2 HWICs per router
Yes
Cisco 2951
Yes, 2 HWICs per router
Yes, 2 HWIC per router
Yes
Cisco 3825
Yes, 2 HWICs per router
Yes, 2 HWICs per router
Yes
Cisco 3925
Yes, 2 HWICs per router
Yes, 2 HWIC per router
Yes
Cisco 3845
Yes, 2 HWICs per router
Yes, 2 HWICs per router
Yes
Cisco 3945
Yes, 2 HWICs per router
Yes, 2 HWIC per router
Yes