Ositech comm Trumpcard Data/Fax Modem manual Kn MNP Extended Services, Hn Link Negotiation Speed

Modem Command Reference

Returns the high-order byte of the calculated Eye Quality Monitor (EQM) value. The value for a normal connection ranges from about 0 to 2 and approaches 8 for a progressively poorer connection.

-Kn — MNP Extended Services

Parameters 0, 1 or 2

Default1

Enables the modem to investigate the capabilities of the modem's MNP10 capacity, and determine whether a V.42 LAPM connection will be converted to an MNP connection. When -K1 is set on both modems, a LAPM connection will be converted to an MNP10 connection.

Examples

AT-K0	Disable V.42 LAPM to MNP 10 conversion
AT-K1	Enable V.42	LAPM to MNP 10 conversion
AT-K2	Enable V.42	LAPM to MNP 10 conversion; inhibit
	MNP extended services initiation during V.42 LAPM
	detection phase
*Hn — Link Negotiation Speed
Parameters	0, 1 or 2
Default	0

Sets the connection speed for link negotiation before upshift occurs between modems. When poor telephone lines are anticipated, the *H1 command should be used to set the connection speed to 1200 bps to facilitate link negotiation. If this command is set to a 1 and the modem connects in LAPM, the connection speed will be fixed at 1200 bps.

Examples

AT*H0	Link negotiation occurs at the preferred line speed
AT*H1	Link negotiation occurs at 1200 bps
AT*H2	Link negotiation occurs at 4800 bps

)Mn — T ransmit Level Adjustment for Cellular Connection

Parameters 0 or 1

Default0

User’s Guide and Reference 4 - 31