The CN8330 is an integral DS3/E3 framer designed to support the transmission formats defined by ANSI T1.107-1988, T1.107a-1989, T1.404, and ITU-T G.751 standards. All maintenance features required by Bellcore TR-TSY-000009 and AT&T PUB 54014 are provided. In addition, the CN8330 can be optionally configured as a High-Level Data Link Controller (HDLC) usable with or without DS3/E3 framing overhead.

Distinguishing Features
• Supports DS3/E3 framing modes
• Includes high-speed HDLC controller (52 MHz)
• Framing recovery for M13, C-bit parity, Syntran, and G.751 E3 signals
• Serial or parallel (octet or nibble) interface modes
• Average reframe time of less than 1 ms for DS3 and less than 250 µs for E3
• Supports the LAPD terminal data link and FEAC channel as defined in T1.107a-1989
• 68-pin PLCC or 80-pin MQFP surface-mount package
• Operates from a single +5 VDC ±5% power supply
• Low-power CMOS technology

Applications
• Digital PCM switches
• Digital Cross-Connect Systems
• Channel Service Units (CSUs)
• Channel extenders
• ATM Switches/Concentrators
• PBXs
• Switched Multimegabit Digital Service (SMDS) Equipment
• Test equipment
• Routers (including HSSI ports)