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 | bitsynchronous 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 |
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 Transmitter | internal handling according to data length |
Time Control for Receiver | 20 ms - 60 s |
Special Services |
|
