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DS21Q42TN

  • Available: 6807

Reference Price(In US Dollars)

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1+US $0.00000US $0.00

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  • Description
  • Alternatives
  • Shopping Guide
Description

The DS21Q42 is an enhanced version of the DS21Q41B Quad T1 Framer.
The DS21Q42 contains four framers that are configured and read through a common microprocessor compatible parallel port. Each framer consists of a receive framer, receive elastic store, transmit formatter and transmit elastic store. All four framers in the DS21Q42 are totally independent, they do not share a common framing synchronizer.
FEATURES
• Four T1 DS1/ISDN–PRI/J1 framing transceivers
• All four framers are fully independent
• Each of the four framers contain dual two–
• frame elastic store slip buffers that can connect to asynchronous backplanes up to 8.192 MHz
• 8–bit parallel control port that can be used directly on either multiplexed or non– multiplexed buses (Intel or Motorola)
• Programmable output clocks for Fractional T1
• Fully independent transmit and receive functionality
• Integral HDLC controller with 64-byte buffers configurable for FDL or DS0 operation
• Generates and detects in–band loop codes from 1 to 8 bits in length including CSU loop codes
• Pin compatible with DS21Q44 E1 Enhanced Quad E1 Framer
• 3.3V supply with 5V tolerant I/O; low power CMOS
• Available in 128–pin TQFP package
• IEEE 1149.1 support
Alternatives

Functional Equivalent (FE) materials, including Fused Filament Fabrication (FFF) form, assembly, and functionally compatible substitute materials.

SHIPPING GUIDE

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    Shipping starts at $40 but varies for destinations like South Africa, Brazil, India, and more. The actual shipping charges depend on time zone, country, and package weight/volume.

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    We ship orders once daily, around 5 p.m., except on Sundays. The estimated delivery time may vary depending on the courier service you choose, but typically ranges from 5 to 7 business days.

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