Cisco HWIC-1CE1T1-PRI WAN Interface card

Feature	Specification
Interface Type	1x Channelized T1/E1 and ISDN PRI
Supported Speeds	T1 (1.544 Mbps) or E1 (2.048 Mbps)
Voice and Data Support	Data Only
Clocking Mode	Dependent or Independent
Maximum Ports per Router	4 (depending on ISR model)

Description: Combined Connectivity: Supports both T1/E1 and ISDN PRI connections, offering flexibility for various WAN environments. Data Only: Designed for data traffic, not voice applications, due to limitations in independent clocking mode. Flexible Clocking: Can operate in dependent or independent clocking mode. Dependent mode requires all ports on the HWIC to share a clock source, while independent mode allows each port to have its own clock, but disables voice functionality. Increased Scalability: Enables adding a single T1/E1 or ISDN PRI connection to an ISR for basic WAN connectivity needs. The Cisco HWIC-1CE1T1-PRI is a High-Speed WAN Interface Card (HWIC) that provides a single channelized T1/E1 and ISDN Primary Rate Interface (PRI) connection for Cisco Integrated Services Routers (ISRs).