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Functions
The HFC-8S is a HDLC B- and D-channel controller with 8 integrated S/T
interfaces. It can be used for ISDN basic rate lines. All channels (16B+8D)
are served fully duplex by deep FIFOs. Also implemented is a PCM128 / PCM64
/ PCM30 highway interface, which is able to connect to MITEL STTM
bus (MVIPTM), Siemens IOM2TM or GCITM
bus and a universal external bus interface.
Features
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FIFO-sizes configurable
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max. 31 HDLC frames (with 128k or 512k RAM) and 15 HDLC frames (with 32k
RAM) per FIFO
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independent read/write HDLC-channels for each ISDN B-channel and each ISDN
D-channel
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B1 and B2 transparent mode independently selectable
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1 - 8 bit processing for subchannels selectable
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56 KBit/s restricted mode for U.S. ISDN lines selectable by software
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full I.430 ITU S/T ISDN support in TE and NT mode
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B-channels for higher data rate combinable
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PCM128 / PCM64 / PCM30 interface configurable to interface MITEL STTM
bus (MVIPTM), Siemens IOM2TM or GCITM
for inter chip connections or external CODECs
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H.100 data rate supported
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universal external bus interface configurable into PCI bus, ISA-PnP, PCMCIA
or microprocessor interface
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multiparty audio conferences switchable
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DTMF detection and generation on all B-channels
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CMOS technology 3V-5V
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PQFP 208 case
Applications
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ISDN multi-BRI terminal adapters
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ISDN PABX
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ISDN LAN routers
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ISDN least cost routers
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ISDN test equipment
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