bisync


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bisync

bisync

(BInary SYNChronous) A major category of synchronous communications protocols used in mainframe networks. Bisync communications require that both sending and receiving devices are synchronized before transmission of data is started. In the IBM world, bisync was superseded by SDLC. Contrast with asynchronous transmission. See SDLC.
References in periodicals archive ?
Nieczyporowski, staff specialist, and Wen Huang, staff analyst, developed emulations of the low order bisync and SNA device types.
The NMS loads and controls the performance monitor, which automatically adapts to various protocols, including Univac and IBM 3270 Bisync and SDLC.
CAM communicates with non-IBM machines in addition to SNA and pre-SNA IBM hosts, and supports most of the popular start/stop, bisync and SNA-type terminals.
The 3703 may be configured with up to 12 ports, any of which is capable of interconnecting a different kinds of ASCII and/or bisync device, with all devices communicating with the host over a single SDLC link.
But in the case of IBM's 3270 Bisync, a positive-acknowledgement protocol, these delays can be overwhelming to the point of rendering multidrop lines useless.
In Figure 1, one can see the normal data line monitor display of Bisync data.
The new OAS document transfer capabilities allow documents to be sent between OAS systems and non-OAS systems using Honeywell's DSA and IBM's SNA and bisync protocols.
NCP is responsible for handling the line protocols, which could be 3270 bisync in addition to Synchronous Data-Link Control (SDLC), to the cluster controlers and other FEPs.
In addition to SNA terminals, the network supports bisync 3270 and selected asynchronous terminals.