Hot-selling and scarce PEB20320HV3.4 IC TELECOM INTERFACE 160-MQFP spot stock

Product Descriptions

The Multichannel Network Interface Controller for HDLC (MUNICH32) is a Multichannel Protocol Controller,which handles up to 32 data channels of a full duplex PCM highway. It performs layer 2 HDLC formatting/deformatting or V.110 and X.30 protocols up to a network  data  rate  of  38.4 Kbit/s  as  well  as  transparent  transmission  for  the DMI mode 0, 1 and 2. The processed data is passed on to an external memory shared with one or more host processors.

MUNICH32 is compatible with the LAPD ISDN (Integrated Services Digital Network) protocol specified by CCITT as well as with HDLC, SDLC, LAPB  DMI protocols.  It provides any rate adaption for time slot transmission data rate from 64 Kbit/s down to8 Kbit/s and the concatenation of any time slots to data channels, supporting the ISDN H0, H11, H12 superchannels.

Due to these functions the MUNICH32 can be used in a wide area of telecommunication and data communication applications, e.g. in central office switches, for the connection of a digital PABX to a host computer, as a central D-channel controller to 32 ISDN basic access  D-channels  or  as  a  multiplexer for terminals  and  other  peripherals.  Up to4 MUNICH32s can be connected to one PCM highway, so a D-channel controller with128 channels can be achieved.

Product Features

•  Serial Interface

–  Up to 32 independent communication channels.

–  Serial multiplexed (full duplex) input/output for 2048-, 4096-, 1544- or 1536-Kbit/s PCM highways.

•  Dynamic Programmable Channel Allocation

–  Compatible with T1/DS1 24-channel and CEPT 32-channel PCM byte format.

–  Concatenation of any, not necessarily consecutive, time slots to superchannels independently for receive and transmit direction.

–  Support of H0, H11, H12 ISDN-channels.

–  Subchanneling on each time slot possible.

•  Bit Processor Functions (adjustable for each channel)

–  HDLC Protocol

–  Automatic flag detection and transmission

–  Shared opening and closing flag

–  Detection of interframe-time-fill change, generation of interframe-time-fill‘1’s or flags

–  Zero bit insertion

–  Flag stuffing and flag adjustment for rate adaption

–  CRC generation and checking (16 or 32 bits)

–  Transparent CRC option per channel and/or per message

–  Error detection (abort, long frame, CRC error, 2 categories of short frames, non-octet frame content)

–  Special short frame mode to allow reception of‘frames’ with a least on byte length

–  ABORT/IDLE generation

Product Specification

Product Photos

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