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COMSPHERE 3900 Series Modems
Err Contrl Mode (Continued)
Nxt V42/MNPorBfr V42/MNPorDsc MNP_or_Buffr MNP_or_Disc BufferMode DirectMode
LAPM_or_Disc LAPM_or_Bufr
The AT command for Buffer Mode is \N0.
The AT command for Direct Mode is \N1.
The AT command for MNP or Disconnect is \N2.
The AT command for MNP or Buffer is \N3.
The AT command for V42/MNP or Disconnect is \N4.
The AT command for V42/MNP or Buffer is \N5.
The AT command for LAPM or Disconnect is \N6.
The AT command for LAPM or Buffer is \N7.
V42bis Compress: Enable
Nxt Enable Disable
This configuration option is only available if Async/Sync Mode is configured for Async, and Error
Control Mode is configured for V42/MNPorBfr or V42/MNPorDsc.
V.42bis Data Compression. Enables or disables V.42bis data compression.
H Enable
Data compression operates in both the transmit and receive directions. This is the recommended
setting for all applications.
H Disable
V.42bis data compression is disabled. This is rarely needed because V.42bis data compression
does not cause data expansion for compressed data.
The AT command for Disable is H0.
The AT command for Enable is H1, H2, or H3.
MNP5 Compress: Enable
Nxt Enable Disable
This configuration option is only available if Async/Sync Mode is configured for Async, and Error
Control Mode is configured for V42/MNPorBfr, V42/MNPorDsc, MNP_or_Buffr, or MNP_or_Disc.
MNP5 Compression. Determines if the modem uses MNP Class 5 data compression. It can be set
independently of V.42bis data compression. Online changes do not take effect until a disconnect occurs.
The AT command for Disable is %C0.
The AT command for Enable is %C1.
5-40
Table 5-6
(2 of 7)
V.42/MNP/Buffer Configuration Options
September 1998
3910-A2-GN32-40
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