Cisco HWIC-4T1/E1 is a 4-port Clear Channel T1/E1 High-Speed WAN Interface Card for Cisco ISR routers, supporting multiple T1 or E1 WAN connections through one modular interface card.
Application & Use Cases
Branch-office T1/E1 WAN connectivity
Multi-link enterprise WAN aggregation
Carrier leased-line connectivity
ISR modular WAN expansion
Features
Four T1/E1 ports
Clear-channel operation
High-Speed WAN Interface Card
RJ-45 WAN connectivity
Supports Cisco ISR platforms
Benefits
Four T1/E1 WAN interfaces
High-density branch WAN expansion
Supports clear-channel circuits
Consolidates multiple WAN links
Modular ISR connectivity
Supports enterprise leased-line services
Key Specifications
Ports: 4
Interface: T1/E1
Mode: Clear Channel
Product Type: HWIC
Connector: RJ-45
Platforms: Cisco 2800/3800/2900/3900 Series
Minimum IOS: 12.4(20)T on listed 2800/3800 platforms
Minimum IOS: 15.0(1)M on listed 2900/3900 platforms
