The Menu Interface › Send File to Another System Menu (XCICSFIL) › Parameter Fields › Compress Data

Compress Data

Specifies whether or not CA XCOM Data Transport is to compress the data being transferred and decompress it on the receiving system. Compressing the data decreases the transmission time on low‑speed links.

The following list indicates the possible compression mode parameters and their meanings.

Y

YES—This is the default compression scheme. It provides Run Length Encoding (RLE) for blanks and binary zeros.

N

NO—No compression is applied to the data.

0

RLE—Full RLE is applied to all characters.

1

COMPACT—Provides full RLE plus a byte compaction scheme which is suitable for uppercase English text.

2

COMPACTL—Provides full RLE plus a byte compaction scheme which is suitable for lowercase English text.

S

LZSMALL—CA XCOM Data Transport compresses the data according to the small memory model of Lempel‑Ziv 77 compression.

M

LZMEDIUM—CA XCOM Data Transport compresses the data according to the medium memory model of Lempel‑Ziv 77 compression.

L

LZLARGE—CA XCOM Data Transport compresses the data according to the large memory model of Lempel‑Ziv 77 compression.

H

HUFFMAN—Greater compression than RLE but not as much as the Lempel‑Ziv 77 modes.

W

LZRW3—General purpose algorithm that runs fast and gives reasonable compression.

A

ZLIB1—Greater compression than LZRW3 but less than LZSMALL, LZMEDIUM, and LZLARGE.

B

ZLIB2—Greater compression than LZRW3 but less than LZSMALL, LZMEDIUM, and LZLARGE.

C

ZLIB3—Greater compression than LZRW3 but less than LZSMALL, LZMEDIUM, and LZLARGE.

4

ZLIB4—Greater compression than LZRW3 but less than LZSMALL, LZMEDIUM, and LZLARGE.

5

ZLIB5—Greater compression than LZRW3 but less than LZSMALL, LZMEDIUM, and LZLARGE.

6

ZLIB6—Greater compression than LZRW3 but less than LZSMALL, LZMEDIUM, and LZLARGE.

7

ZLIB7—Greater compression than LZRW3 but less than LZSMALL, LZMEDIUM, and LZLARGE.

8

ZLIB8—Greater compression than LZRW3 but less than LZSMALL, LZMEDIUM, and LZLARGE.

9

ZLIB9—Greater compression than LZRW3 but less than LZSMALL, LZMEDIUM, and LZLARGE.

Z

ZLIB—Greater compression than LZRW3 but less than LZSMALL, LZMEDIUM, and LZLARGE.

Default: Y