Model Number: 4-port Asterisk card Brand Name: Houyuan Key Specifications/Special Features: Product features:New version, our second generation digital cardsSupports EC module with octasic EC chipHardware channel switchingMore efficient processing ability

Supports hardware HDLC

Provides E1/T1/J1 support in one card

Compliance with international telecommunications standards

Specifically designed for the asterisk platform, available for Free switch, Yate and other open source project

Highlights:

• Efficient: optimization of DMA transmission and hardware switching
• Clock: support the master-slave clock, so several different carriers can be connected simultaneously
• Interfaces: mixing T1/E1/J1 have been supported
• Line coding: HDB3/AM/B8ZS
• Frame format: CRC4/non-CRC4/ESF/D4T1/E1
• HDLC processing: independent hardware HDLC transceiver
• Driver optimization: specifically optimization for high volume data transmission in drivers