Exchange/RJE Manual

RECEIVE Command
Exchange/RJE Commands
104698 Tandem Computers Incorporated 3–39
Table 3-3. 3780-Emulation Mode RECEIVE Command Block Formats
Normal-Text Block Format
All blocks except last: STX record [ IRS record ]... IRS ETB
Last block: STX record [ IRS record ]... IRS ETX
Maximum block size: 520 bytes (includes 1 byte each for STX and ETB/ETX)
Maximum record size: 146 bytes for the print file
80 bytes for the punch file
Records cannot contain any BSC control characters.
Expansion of compressed blanks:
EBCDIC: IGS count is replaced by count blanks
ASCII: GS count is replaced by count blanks
Transparent-Text Block Format
All blocks except last: DLE STX record [ record ]... ETB
Last block: DLE STX record [ record ]... ETX
Maximum block size: 520 bytes (includes 1 byte each for STX and ETB/ETX)
Record size: 517 (maximum), fixed-length, for the print file
80 bytes, fixed-length, for the punch file
Records can contain any character (bit pattern).
Note that for transparent-text block format, all DLEs other than the first DLE are
deleted from the received data by the underlying communications subsystem.
Therefore, these DLEs do not appear in Exchange/RJE trace data (or in a data file
written when RAWDATA is specified). (A DLE as data is sent as DLE DLE, and only
the first DLE is removed.)