Envoy Configuration and Management Manual

WAN Subsystem Profiles and Modifiers for Envoy
Envoy Configuration and Management Manual—429861-001
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Modifier Descriptions
BREAKENA
Default: Not specified
Units: Not applicable
Range: Not applicable
Alternate modifier: None
This modifier applies to SIMPLEX and ASC lines only. It enables break detection
during receive and transmit operations. This modifier can be altered with a call to
SETMODE 15.
Once this modifier is added to the device record, it can only be removed by using the
SCF ALTER DEVICE command with the RESET modifier option.
BSCCHAR5, BSCCHAR6, BSCCHAR7, or BSCCHAR8
Default: BSCCHAR8
Units: Not applicable
Range: Not applicable
Alternate modifiers: Any of the BSCCHAR modifiers
This modifier applies to BSC lines only. It defines the number of bits per character as
shown below:
BSCCHAR5 = five bits per character
BSCCHAR6 = six bits per character
BSCCHAR7 = seven bits per character
BSCCHAR8 = eight bits per character
BUFSIZE n
Default: 0 for BSC, ADM, TINET, and ASC lines; 1024 for SIMPLEX lines
Units: Words
Range: 0 through 32767
Alternate modifier: None
This modifier applies to all Envoy line types. It is used to dedicate a buffer.
For SIMPLEX lines, the dedicated buffer is divided dynamically during read operations
into a number (2 to 15) of equal-sized blocks. If the number of characters to be read is c,
the size of each block is c - 1 words. The size of the dedicated buffer should therefore be
large enough to accommodate an appropriate multiple of that amount. The buffer size is
calculated as follows:
BUFSIZE = ((RSIZE *2) + 1 ) * 2
where RSIZE is the record size that you specified for the RSIZE or RECSIZE attribute.