Octal T1/E1/J1 Framer
DS26401 Octal T1/E1/J1 Framer
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GENERAL DESCRIPTION
The DS26401 is an octal, software-selectable T1, E1 ...
Description
DS26401 Octal T1/E1/J1 Framer
www.maxim-ic.com
GENERAL DESCRIPTION
The DS26401 is an octal, software-selectable T1, E1 or J1 framer. It is composed of eight framer/formatters and a system (backplane) interface. Each framer has an HDLC controller that can be mapped to any DS0 or FDL (T1)/Sa (E1) bit. The DS26401 also includes a full-feature BERT device, which can be used with any of the eight T1/E1 ports, and an internal clock adapter useful for creating synchronous, high frequency backplane timing. The DS26401 is controlled through an 8-bit parallel port that can be configured for nonmultiplexed Intel or Motorola operation.
FEATURES
§ § § § § § § § § § § § § § § § § 8 Independent, Full-Featured T1/E1/J1 Framers/Formatters Independent Transmit and Receive Paths Flexible Signaling Extraction and Insertion Alarm Detection and Insertion Transmit Synchronizer AMI, B8ZS, HDB3, NRZ Line Coding Performance Monitor Counters BOC Message Controller (T1) Two-Frame Elastic Store Buffers for Each Transmitter and Receiver One HDLC Controller per Framer RAI-CI and AIS-CI Support Full-Feature BERT can be Mapped to Any Port Flexible TDM Backplane Supports Bus Rates from 1.544MHz to 16.384MHz Internal Clock Generator (CLAD) Supplies 16.384MHz, 8.192MHz, 4.096MHz, or 2.048MHz JTAG Test Port Single 3.3V Supply with 5V Tolerant Inputs 17mm x 17mm, 256-Pin BGA (1.00mm Pitch)
APPLICATIONS
Line Cards Add-Drop Multiplexers DSLAMs Timing Systems PBXs Switches Central Office Equipment
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