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CISCO EHWIC-4ESG= | Ethernet switch interface card

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Four port 10/100/1000 Ethernet switch interface card
SKU: 1247088

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Product Description


The Cisco® Gigabit Ethernet Dual-Identity Enhanced High-Speed WAN Interface Card (EHWIC) brings both Small Form-Factor Pluggable (SFP) and copper (RJ-45) Gigabit Ethernet connectivity to Cisco Integrated Services Routers (ISRs) to accelerate applications such as Ethernet WAN access, inter-VLAN routing (IVR), and high-speed connectivity to LAN switches.

The single-port Cisco Gigabit Ethernet EHWIC provides Gigabit Ethernet optical and copper connectivity in a compact form factor to the Cisco Integrated Service Router Generation 2 (ISR G2).

The Gigabit Ethernet EHWIC enables branch offices to cost-effectively use high-speed uplinks in numerous environments (Figure 1). The enhanced performance of Gigabit Ethernet in Cisco ISR G2 routers enables new applications and services and provides greater capacity for existing IVR and bridging capabilities. Branch offices can now connect to Ethernet WAN (EWAN) Layer 2 and 3 services.

Note: The EHWIC provides Gigabit Ethernet connectivity but will not support line rate since throughput is limited by the platforms. The maximum throughput cannot exceed 800 Mbps bidirectionally.

For flexibility, the EHWIC includes one SFP slot, which supports a Cisco SFP (see Table 1 later in this document) and a copper RJ-45 port, where either the SFP port (operating at 100/1000 Mbps) or the RJ-45 (operating at 10/100/1000 Mbps) port can be active at one time. The SFP port supports digital optical monitoring (DOM) as specified by the industry-standard SFF-8472 multisource agreement (MSA). This feature enables the end user to monitor real-time parameters of the SFP, such as optical output power, optical input power, temperature, laser bias current, and transceiver supply voltage.

Cisco IOS® Software provides enhanced capabilities such as hierarchical quality of service (HQoS), Multiprotocol Label Switching (MPLS), IP Security (IPsec), and Layer 3 VPNs. Since this is a true routed port card, the user can configure an IP address directly on the EHWIC-1GE-SFP-CU interface and does not have to configure the port for VLAN trunking as is done in switched virtual interface (SVI) configurations.

Gigabit Ethernet Applications

Main Features

QoS Features

 Weighted Random Early Detection (WRED)

 Precedence setting and mapping (IEEE 802.1p)

 Committed access rate (CAR)

 Access control lists (ACLs)

 MAC address filtering

 Extended ACLs

 Voice and remaining QoS features, per platform and per Cisco IOS Software release


Ethernet Specifications

 Support for the same Ethernet features as supported on the ISR G2 on-board Ethernet ports

 Gigabit Ethernet IEEE 802.3z, IEEE 802.3x, and IEEE 802.3ab

 IEEE802.3 with IEEE802.2 Service Advertising Protocol (SAP)

 IEEE802.3 with IEEE802.2 and Subnetwork Access Protocol (SNAP)

 IEEE 802.1p priority

 IEEE 802.1Q VLAN tagging

 Flow control (IEEE 802.3x)

 Gigabit EtherChannel for link redundancy

 DOM: SFF-8472

Network Management Features

 Simple Network Management Protocol (SNMP) support

 Remote Monitoring (RMON) support

 Cisco NetFlow accounting

 IP service-level agreement (IP-SLA)

Additional Features

 Jumbo frame support for up to 9576 bytes

 Cisco Group Management Protocol (GMP) and Internet Group Management Protocol (IGMP) for multicasting

 High availability, supporting Hot Standby Router Protocol (HSRP), Virtual Router Redundancy Protocol (VRRP), and Gateway Load-Balancing Protocol (GLBP)

 Hot insertion and removal for SFPs on all platforms

 Media or SFP type display through a command-line interface (CLI)

 No connection to the ISR G2 router’s Multi-Gigabit Fabric (MGF)

Agency Approvals

 UL 60950-1, 2nd edition

 CAN/CSA C22.2 No. 60950-1, 2nd edition

 EN 60950-1, 2nd edition

 CB to IEC 60950-1, 2nd edition with all group differences and national deviations


 FCC Part 15 Class A

 ICES-003 Class A

 EN55022 Class A

 CISPR22 Class A

 AS/NZS 3548 Class A

 VCCI Class A

 EN 300386




Physical Specifications

 Single-wide EHWIC, with no slot restrictions

 Dimensions (H x W x D): 0.8 x 3.1 x 4.8 in. (2.1 x 7.9 x 12.2 cm)

Environmental Specifications

 Operating temperature: 32 to 104°F (0 to 40°C)

 Storage temperature: –4 to 149°F (–20 to 65°C)

 Relative humidity: 10 to 90 percent, noncondensing

Additional Information

Additional Information

Manufacturer CISCO
Warranty Statutory Manufacturer Warranty

Brand Description


Did you know that the majority of the core routing equipment used to power the Internet comes from Cisco? Well, now you do. The Cisco brand is internationally renowned for providing high-end and top-notch networking products. In fact, Cisco’s networking gears have become synonymous with reliability, performance and durability throughout.

You can often find Cisco’s equipment being utilized in huge organization as well as households from global communications carriers, governments, schools, hospitals, branch offices and homes. Cisco products allow you to stay on top of your business with a simple yet fully featured network connectivity solutions across multiple IT and networking needs. Their vast range of Wireless Access Points, Routers, Switches, Data center networking equipment Unified Communications, Conferencing and many more represent high quality, durability, reliability, easy maintenance and operational efficiency. These qualities have won popularity for the Cisco brand not only in enterprise organizations but even at home.

You can find a broad range of Cisco equipment on our website for all your networking needs


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