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)