Binary Synchronous Communications - IBM 5110 General Information And Physical Planning Manual

Binary Synchronous Communications
The Binary Synchronous Communications (BSC) feature allows the 5110 to
communicate with another system, another terminal, or another 5110 that is
equipped with binary synchronous communications.
The 5110 uses either the IBM 3741 data link control or the IBM 2770 data link
control. When using the 3741 data link control, the 5110 can communicate
with:
• A System/3
• A System /32
• A System /34
• A 3741 Model 2 or 4
• Another 5110
The 5110 can also communicate with devices that are compatible with any of
the above systems or terminals.
When using the 2770 data link control, the 5110 can communicate with a
System/370 equipped with the appropriate subfeatures.
With the Binary Synchronous Communications feature, the 5110 transmits and
receives data at speeds up to 4,800 bits per second using either EBCDIC
(extended binary coded decimal interchange code) or the EBCDIC transparency.
The 5110 can communicate on switched point-to-point or nonswitched
point-to-point channels, or on a multipoint channel as a tributary station only.
The 5110 contains a microprocessor to control communications in addition to
the APL and BASIC processor. This allows you to use the APL or BASIC
language to write data to and read data from the Binary Synchronous
Communications feature just as you do any of the other 5110 input/output
devices.
You can also use the APL or BASIC language to overlap communications with
other noncommunications functions (such as printing data, or reading and
writing data from tape or diskette).
If you want to use communications functions such as transmitting data,
receiving data, or inquiry, you can use either the APL or the BASIC binary
synchronous communications support function that is provided with the
feature.
Optional Features and Services for Your 5110 31