S41 – general bit mapped options status, S46 – data compression control – Westermo ID-90 User Manual

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1

Enable extended services (-K1)

2

Enable extended services (-K2)

Bit 2

Reserved

Bits 3–5

Break Handling (\Kn)

0\K0
1

\K1

2

\K2

3

\K3

4

\K4

5

\K5 (default)

Bits 6–7

Reserved.

S41 – General Bit Mapped Options Status

Only valid with analogue modem option.
S41 indicates the status of command options.
Default: 195 (C3h) (1100011b)

Bits 0–1

Compression selection (%Cn)

0Disabled (%C0

)

1

MNP 5 (%C1)

2

V.42 bis (%C2)

3

MNP 5 and V.42 bis (%C3) (default)

Bits 2, 6

Auto retrain and fallback/fall forward (%En)

0 0 Retrain and fallback/fall forward disabled (%E0)
0 1 Retrain enabled (%E1)
1 0 Fallback/fall forward enabled (%E2) (default)

Bits 3–5, 7

Reserved.

S46 – Data Compression Control

Only valid with analogue modem option
S46 controls selection of compression. The following actions are executed for the given
values:

S46
136

Execute error correction protocol with no compression.

138

Execute error correction protocol with compression. (default)

90

90

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