Exchange/RJE Manual

SEND Command
Exchange/RJE Commands
104698 Tandem Computers Incorporated 3–55
Table 3-9. 3780-Emulation Mode SEND 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: 512 bytes (includes 1 byte each for STX and ETB/ETX)
Maximum record size: 144 bytes
Records cannot contain any BSC control characters.
Compression of multiple, consecutive blanks:
EBCDIC: 2 to 63 consecutive blanks are replaced by IGS count , where count
indicates the number of blanks replaced.
ASCII: 2 to 63 consecutive blanks are replaced by GS count , where count
indicates the number of blanks replaced.
Transparent-Text Block Format
All blocks except last: DLE STX record [ record ]... ETB
Last block: DLE STX record [ record ]... ETX
Maximum block size: 512 bytes (includes 1 byte each for DLE, STX, and ETB/ETX)
Record size: 80 bytes, fixed-length, for all files
Records can contain any character (bit pattern).
Note that for transparent-text block format, all DLEs other than the first DLE are
inserted in the block by the underlying communications subsystem. Therefore, these
DLEs do not appear in Exchange/RJE trace data. (A DLE as data is sent as DLE DLE.
The additional DLE is inserted by the underlying communications subsystem.)