Cisco WIC-1SHDSL Full Official Technical Specification Document
1. Product Overview
Official Full Designation
Cisco WIC-1SHDSL:Cisco 1-Port G.SHDSL 2-Wire Only ATM WAN Interface Card (WIC), ITU-T G.991.2 Standard Symmetric DSL CPE Module, Exclusively for Cisco 2600 / 3600 Series Legacy Integrated Services Routers, Delivers Symmetrical Bidirectional WAN Connectivity for Branch Office VoIP, Video Conferencing and Data Transport ServicesCisco
Core Definition
The Cisco WIC-1SHDSL is the original baseline generation single-port G.SHDSL WAN Interface Card built for Cisco’s early modular ISR routers. It implements ITU-T G.991.2 multirate symmetric high-speed DSL technology over a single twisted copper pair (2-wire operation only). This card serves as customer premises equipment (CPE) to connect branch routers to service provider G.SHDSL DSLAMs such as Cisco 6015, 6130, 6160 and 6260 series platformsCisco.
Unlike the later WIC-1SHDSL-V2 variant that supports both 2-wire and 4-wire dual copper pair bonding for higher bandwidth, the original WIC-1SHDSL strictly supports 2-wire single-pair operation with a maximum symmetrical throughput of 2.3 Mbps bidirectional. It operates on an ATM-based transport architecture, supporting ATM permanent virtual circuits (PVCs), ATM QoS service categories and standard ATM operation and maintenance (OAM) functions for carrier-grade WAN service deliveryCisco.
This WIC enables cost-effective symmetrical broadband WAN links as a lower-cost alternative to traditional T1/E1 leased lines and ISDN circuits for small and medium enterprise branch sites running mixed voice, video and data workloads. It is a legacy first-generation WIC without hot-swap capability, requiring full router power cycling for installation or replacement.
SKU Naming Breakdown
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N9K excluded: This product belongs to legacy ISR WIC series, no N9K chassis prefix
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WIC: WAN Interface Card, modular expansion slot adapter for Cisco ISR routers
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1: Single physical G.SHDSL port on the card
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SHDSL: Symmetric High-Speed Digital Subscriber Line, ITU-T G.991.2 symmetrical DSL technology
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=: Optional suffix for standalone spare-only WIC kits (WIC-1SHDSL=)
Product Lifecycle Notice
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Official Global Release Year: 2004
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End-of-Sale (EoS) Status: Discontinued; Cisco permanently ceased production of brand-new WIC-1SHDSL hardware units
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Direct Upgrade Replacement Models: WIC-1SHDSL-V2 (2/4-wire dual pair support), WIC-1SHDSL-V3, HWIC-SHDSL high-performance HWIC generation cardsCisco
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Minimum Supported IOS Software Version: Cisco IOS Release 12.2(8)T for 2600 and 3600 series routersCisco
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Software Maintenance Status: Only critical security vulnerability patches are released for customers holding active Cisco DNA service contracts; no new feature enhancements will be developed
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Legacy Status: End-of-sale legacy hardware; certified refurbished spare modules, validated legacy IOS firmware images and 24×7 Cisco TAC engineering technical support remain available through authorized Cisco distribution partners
Supported Router Platform Compatibility
WIC-1SHDSL is fully compatible with the following legacy Cisco Integrated Services Router chassis equipped with standard WIC expansion slots:
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Cisco 2600 Series (2610, 2611, 2620, 2621, 2650, 2651, 2600XM, 2691)
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Cisco 3600 Series (3620, 3640, 3660)
Deployment Restrictions
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No hot-swap capability: The card cannot be safely inserted or removed while the router is powered on; complete power cycle of the chassis is mandatory for installation or replacement. Live removal triggers immediate WAN link outages and persistent system log error messages.
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Hardware limitation: Strictly 2-wire single copper pair operation; cannot bond two copper pairs to double bandwidth (this feature was introduced in WIC-1SHDSL-V2 only)Cisco.
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Platform incompatibility: Not supported on Cisco 1700, 3700, 1800/2800/3800 ISR series, nor the 1600 series legacy routers.
Standard Factory Complete Bundle Contents
Each factory-sealed WIC-1SHDSL retail/spare package contains all hardware required for router installation:
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WIC-1SHDSL base single-port G.SHDSL ATM WAN interface card with front-panel RJ-11 line connector and three dedicated status LED indicators (CD, LP, OK)
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Anti-static ESD handling storage bag
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Quick-start hardware installation guide covering WIC slot insertion, removal, twisted pair line cabling and basic IOS G.SHDSL ATM configuration examples
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Global regulatory compliance, safety, and electromagnetic interference (EMI) certification documentation packet
Core Integrated Functional Capabilities
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ITU-T G.991.2 standard compliant 2-wire symmetric G.SHDSL transmission, symmetrical bidirectional bandwidth from 192 Kbps up to maximum 2.3 Mbps over single twisted copper pairCisco
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Native ATM transport architecture supporting up to 8 ATM permanent virtual circuits (PVCs) per interface, compatible with standard ATM service categories: CBR, VBR-rt, VBR-nrt, UBR for differentiated QoS scheduling of voice, video and data traffic
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Comprehensive ATM operation & maintenance features: F5 OAM continuity check, ATM loopback testing, ILMI integrated local management interface for DSLAM CPE auto-discovery and status monitoring
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Layer 2 encapsulation support: PPP over ATM (PPPoA), RFC 1483 bridged/routed ATM for IP traffic transport, AAL5 ATM adaptation layer for VoIP and real-time media transmissionCisco
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Per-PVC queuing and ATM traffic shaping for bandwidth policing, eliminating head-of-line blocking between different traffic classes
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Full IOS feature integration: Static/dynamic routing (RIP, EIGRP, OSPF), IOS zone-based firewall, NAT/PAT, IPSec VPN tunneling, AAA authentication (PAP/CHAP/MS-CHAP, RADIUS/TACACS+), QoS traffic classification and marking
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Multi-service branch workload support: Simultaneous VoIP voice transport, real-time video conferencing, file replication and internet access over a single symmetrical G.SHDSL WAN link
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Interoperability with Cisco carrier-grade G.SHDSL DSLAM equipment deployed at service provider central office locations
2. Hardware & Performance Specifications
Core Transmission Performance
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Standard: ITU-T G.991.2 G.SHDSL 2-wire single copper pair only
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Symmetrical Bidirectional Data Rate Range: 192 Kbps to maximum 2.3 Mbps (no 4-wire bonding support)Cisco
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Physical Port Connector: Single RJ-11 front-panel connector for 2-wire twisted pair telephone line cabling
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Supported ATM Functions: ATM PVC, ILMI, F5 OAM, loopback diagnostics, per-VC shaping and queuing
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Maximum Concurrent ATM PVCs: 8 per WIC card
Front Panel LED Indicator Definitions
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OK: DSL SAR chip download complete, hardware initialization successful (solid green = normal operation)
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CD (Carrier Detect): Solid green = synchronized G.SHDSL carrier link established with DSLAM; off = no DSL carrier signal
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LP (Loopback): Lit green when ATM loopback diagnostic mode is activated for troubleshooting
Electrical & Thermal Specifications
Power Consumption
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Typical operating power draw under medium traffic load: ~12 Watts
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Maximum full-load power consumption under peak 2.3Mbps symmetrical throughput: ~16 Watts
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Power Delivery: Powered exclusively through the router chassis WIC slot backplane; no external power supply connectors mounted on the WIC card
Thermal & Environmental Operating Parameters
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Certified Continuous Operating Temperature Range: 0°C to 40°C (32°F to 104°F) standard data center equipment room environment
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Extended Validated Short-Term Operating Temperature: 0°C to 55°C (32°F to 131°F)
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Storage & Transport Temperature Range: -40°C to 70°C (-40°F to 158°F)
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Operating Relative Humidity: 10% to 90% RH, non-condensing
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Storage Relative Humidity: 5% to 95% RH, non-condensing
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Operating Altitude: Certified operational range -150 m to 2,000 m (-500 ft to 6,500 ft); extended validated range up to 3,000 m (10,000 ft)
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Cooling Design: Fanless passive heat dissipation architecture without onboard cooling fans; cooling airflow supplied by the host router’s internal chassis fan assembly
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Airflow Direction: Horizontal cross airflow passing through the router chassis expansion slot bay
Physical Form Factor & Weight
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Form Factor: Standard low-profile single-wide WIC modular expansion card form factor designed exclusively for Cisco 2600/3600 ISR router WIC expansion slots
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Bare WIC Net Weight (without line cord and accessory hardware): Approximately 68 grams (2.4 oz)
3. Regulatory & Compliance Certifications
Fully compliant with global international industry, safety, EMC standards when installed inside certified Cisco legacy ISR router chassis:
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Safety Standards: UL 60950-1, CSA C22.2 No. 60950-1, EN 60950-1, IEC 60950-1, GB 4943 Chinese national safety standard
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EMC & EMI Standards: FCC CFR Title 47 Part 15 Class A, VCCI Class A, EN55022 Class A, CISPR 22 Class A, ICES003 Class A
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Carrier-Grade Compliance: NEBS Level 3 (GR-1089-CORE) electromagnetic safety and environmental standards, ETSI ETS 300 386-2
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Environmental Directive: EU RoHS hazardous substance restriction compliance
4. Core Deployment Advantages
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Cost-Effective Symmetrical WAN Alternative: G.SHDSL symmetrical bandwidth delivers identical upload/download throughput at significantly lower monthly recurring cost compared to traditional T1/E1 leased lines and ISDN primary rate circuits, ideal for small/medium branch offices running upload-heavy workloads such as cloud backup, video conferencing and VoIP trunking.
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Standardized ITU-T G.991.2 Interoperability: Fully compliant with global G.SHDSL industry standards, enabling seamless cross-vendor interoperability with all major carrier DSLAM platforms including Cisco’s full range of DSL aggregation equipment, eliminating vendor lock-in for WAN access services.
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Rich ATM QoS & Multi-Service Traffic Scheduling: Built-in ATM per-PVC queuing and traffic shaping delivers granular bandwidth control to prioritize latency-sensitive real-time voice and video traffic over bulk data transfers, supporting converged triple-play voice-video-data branch network deployments.
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Complete Cisco IOS Software Ecosystem Integration: The WIC fully supports all core IOS routing, security, VPN, firewall and AAA feature suites, allowing unified policy management across LAN, WAN and remote access connections without requiring third-party external CPE modems or adapters.
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Fanless Passive Cooling High Reliability Design: Fanless onboard heat dissipation removes mechanical fan failure points, ensuring stable 24/7 continuous operation in unmanned remote branch equipment closets with minimal maintenance overhead. Low power consumption reduces overall router energy draw and data center cooling operational costs.
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Simplified Single-Slot Modular Deployment: Occupies only one standard WIC expansion slot on 2600/3600 series routers, enabling flexible multi-WAN port expansion by combining multiple WIC-1SHDSL cards for multi-carrier redundant branch connectivity without consuming excessive router chassis real estate.
Supplementary Product Specification Notes
UNSPSC Classification Code
43222630 (Legacy single-port 2-wire only G.SHDSL ATM WAN Interface Card (WIC), Cisco WIC-1SHDSL, ITU-T G.991.2 standard symmetrical DSL, RJ-11 twisted pair line port, max 2.3Mbps bidirectional symmetrical throughput, ATM PVC/OAM/QoS support, compatible with Cisco 2600/3600 series modular ISR routers, for small/medium enterprise branch office converged voice/video/data symmetrical WAN access deployments).
K9 Security Compliance Note
All IOS releases supporting WIC-1SHDSL implement AES encrypted remote CLI, SSH secure management, secure SNMPv3 access control, IPSec encrypted VPN tunnels and AAA identity authentication frameworks, meeting Cisco K9 secure IOS classification standards required for government, financial and healthcare regulated network deployments.
Factory Hardware Warranty Terms
Standard 1-year limited hardware warranty coverage for brand-new factory-sealed WIC-1SHDSL spare kits purchased through official Cisco authorized global distribution channel partners. Extended service support contracts were available as optional add-ons via Cisco DNA Services during the product’s active sales lifecycle, covering spare part replacement, 24×7 Cisco TAC engineering technical support, and certified legacy IOS firmware upgrade releases.
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