The Layer 3 Cisco 1- and 2-Port Fast Ethernet High-Speed WAN interface cards (HWICs) (see Figures 1 and 2) supported on the Cisco 1841, Cisco 2800, and Cisco 3800 Series Integrated Services Routers offer small-to-large-sized businesses and enterprise branch-office customers the option to add Layer 3 routed ports with many advanced features, including quality-of-service (QoS) and rate-limiting capabilities.
The Cisco Fast Ethernet HWICs are singlewide interface cards, available as a 1-port HWIC (HWIC-1FE) and as a 2-port HWIC (HWIC-2FE), that provide Cisco modular and integrated services routers with additional Layer 3 routed ports. More information: Features | Internal | Yes |  | Flow control support | Yes | Weight & dimensions | Dimensions (WxDxH) | 78 x 120 x 19.5 mm | | Weight | 72.57 g | Performance | Compatibility | Cisco 3825 / 3845 | Network | Data transfer rate | 0.1 Gbit/s | | Data link protocols | IEEE802.3 + IEEE802.2 SAP, IEEE802.3 + IEEE802.2 SNAP, IEEE 802.1Q VLAN, PPPoE, SNMP | | Connectivity technology | Wired | | Networking features | Ethernet, VLAN, QoS, MIB, IGMP, NAT, IPv6, GTS, MGCP, DHCP, L2TPv3, GLBP, GRE | Logistics data | Harmonized System (HS) code | 85177900 | Operational conditions | Operating temperature (T-T) | 0 - 40 °C | | Storage temperature (T-T) | -20 - 65 °C | | Operating relative humidity (H-H) | 10 - 90 % |
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