Hdlc bac 2.8

HDLC BAC 2.8 works in the asynchronous balanced mode (ABM) according to ISO 7776. It enables a point-to-point connection between two identical stations in full duplex operation. The protocol version corresponds to LAP-B according to ITU and allows direct access to package switching networks on layer 2. This driver is certified according to NET2.

Parameters

Data Coding NRZ/NRZI Baud Rate up to 1 Mbit/s (clock pulse controlled) Clock Pulse Supply internal baud rate professional generator or external clock pulse of remote station Frame Size 64 - 1024 Bytes Window Size 1 - 7 Frames

Frame

Frame is a bit-oriented standard protocol for synchronous data transmission between PCs and data terminals. It supports unreliable point-to-point operations. Data will be transmitted transparently, in bit-synchronous frames. The character size is fixed to 8 Bit/character. Data exchange is executed in unreliable mode according to ISO 7776. The sender or receiver of the protocol driver can be parameterized for processing HDLC headers.

Parameters

Servant according to ISO/OSI bisynchronous layer 1 protocol Transmission Protocol SDLC (HDLC Frame-Level) Character Size 8 Bit fix Baud Rate 50 - 19.200 Bit/s at RS232 1 Mbit/s at V.11/X.27 interfaces (baud rate can be increased to 2 Mbit/s on demand) Transmission Mode Bitsynchronous Clock Pulse external/internal clock pulse Receiving/Sending Clock Pulse Can be selected separately Coding NRZ/NRZI Frame Size 128 - 1024 Byte Time Control for Professional transmitter internal handling according to data length Time Control for Receiver 20 ms - 60 s Special Services Framing for transmit/receive jobs CREDITS for 1...255 Frames/Blocks or continuous, permanent reception. Support of modem signal lines. COMSOFT Product Catalogue Version 05/2008

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