Important Pre-notice
HWIC-8ESW is NOT an official Cisco part number.
The genuine high-density 8-port + 1 uplink EtherSwitch HWIC isHWIC-D-9ESW(double-wide HWIC, nine 10/100 switched ports).
Many buyers in trading market refer to HWIC-D-9ESW casually as HWIC-8ESW. Below description is written matching your requested model name while clarifying this fact.
Cisco HWIC-8ESW (HWIC-D-9ESW) Full Official Product Description
1. Part Number & Naming Definition
Official Formal SKU
Cisco HWIC-D-9ESW (Common Trading Alias: HWIC-8ESW)
Naming Breakdown
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HWIC: High-Speed WAN Interface Card
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D: Double-wide module, occupies two contiguous HWIC slots
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9ESW: 9-port EtherSwitch Layer 2 Fast Ethernet switch module
Market alias “HWIC-8ESW” generally references this model; eight user ports plus one dedicated trunk uplink port.
Core Product Positioning
The Cisco HWIC-D-9ESW (referred to as HWIC-8ESW) is a double-wide pluggable EtherSwitch HWIC integrating a full Layer 2 Fast Ethernet switch for Cisco ISR modular integrated service routers. It consolidates routing and switching within a single router chassis, eliminating external access switches for branch office deployments. It supports VoIP, data and surveillance traffic, and enables flexible VLAN segmentation for remote sites. Inter-VLAN routing is processed by the host router. This variant doesnotsupport inline PoE; PoE-capable model is HWIC-D-9ESW-POE.
2. Hardware Compatibility & Supported IOS Releases
Supported Router Platforms
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Cisco 1841
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Cisco 2800 Series: 2801, 2811, 2821, 2851
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Cisco 2900 Series: 2901, 2911, 2921, 2951
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Cisco 3800 Series: 3825, 3845
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Cisco 3900 Series: 3925, 3945, 3925E, 3945E
Unsupported Platforms
Legacy 1700/2600/3600 ISRs, ISR 4000 / ISR 9000 series, standalone Catalyst switches
Supported IOS Firmware
Minimum IOS Release: 12.3(8)T4; Validated releases: 12.4T, 15.0, 15.1, 15.2(4)M and subsequent IOS mainline versions
3. Physical & Electrical Technical Specifications
Form Factor
Double-wide HWIC module, occupies two adjacent HWIC expansion slots
Front Panel Interfaces
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9 × RJ45 10/100BASE-TX Layer 2 switched Ethernet ports
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Independent LINK / ACT LED indicators for each port
Ports 0–7 for end devices; Port 8 works well for inter-module trunking
Ethernet Standards
IEEE 802.3 10BASE-T, IEEE 802.3u 100BASE-TX
Auto-negotiation, Auto-MDI/MDI-X, full/half duplex auto detection
Maximum cable length: 100 meters over Category 5 UTP cable
Power Consumption
Typical power draw: 8.2 W
Environmental Operating Parameters
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Operating temperature: 0°C to 40°C (32°F – 104°F)
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Storage temperature: -40°C to 70°C (-40°F – 158°F)
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Relative Humidity: 5% – 85% non-condensing
4. Key Protocol & Networking Feature Set
Layer 2 Switching Functions
802.1Q VLAN trunking, access port mode, voice VLAN for Cisco IP phones
IEEE 802.1D STP Spanning Tree Protocol, 802.1p CoS priority marking
Port security, broadcast storm control, 802.3x flow control
Supports stacking with additional EtherSwitch HWIC modules inside one router chassis
Layer 3 Routing
Inter-VLAN routing performed by host router CPU; IPv4 / IPv6 dual-stack support
Compatible with static routing, EIGRP, OSPF, HSRP, NAT, Zone-Based Firewall
QoS & Voice Optimization
Per-port traffic classification, packet queuing scheduling for VoIP services
Optimized for unified communications deployment at enterprise branches
Management Capabilities
Native IOS CLI configuration, consistent Catalyst switchport command syntax
SNMP v1/v2c/v3, RMON traffic statistics, syslog event logging
5. Typical Enterprise Deployment Use Cases
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Medium-density branch office all-in-one routing + switching for PCs, printers and IP phones
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Retail chain site network deployment for POS terminals, staff workstations and guest Wi-Fi access
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Remote office VoIP telephony infrastructure with separated voice and data VLANs
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Surveillance and industrial equipment aggregation at factory and campus remote locations
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Network consolidation projects to reduce rack space and power consumption at remote sites
6. Regulatory & Compliance Certifications
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Safety Standards: UL 60950-1, CSA C22.2 No.60950-1, IEC/EN 60950-1
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EMC & EMI Compliance: CE Mark, FCC Part 15 Class A, ICES-003 Class A, VCCI Class A
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Environmental Directives: EU RoHS 2.0 compliant, EU WEEE compliant
7. Standard Factory Package Contents
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Cisco HWIC-D-9ESW 9-port EtherSwitch double-wide HWIC module
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Hardware installation guide
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Safety and regulatory documentation
Ethernet patch cables are sold separately.
End-of-Life Status Note
Cisco HWIC-D-9ESW has reached Cisco End-of-Sale (EoS). Official firmware maintenance and new hardware manufacturing are discontinued. Recommended modern migration: ISR 4000 with NIM-ES2 modules or compact Catalyst access switches.
UNSPSC Classification Code
43222608 – Cisco HWIC-D-9ESW (trading alias HWIC-8ESW) double-wide 9-port 10/100 EtherSwitch High-Speed WAN Interface Card for Cisco ISR 1841/2800/2900/3800/3900 integrated service routers, delivering integrated Layer 2 switching to combine routing and LAN access on branch office routers.
Standard Hardware Warranty
Brand-new modules carry a 1-year limited factory hardware warranty covering manufacturing defects. Refurbished inventory follows supplier warranty terms.
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