MFJ-1278B MULTI-MODE

SYSTEM MESSAGES

Link Status Messages

These messages inform you of the status of AX.25 connections your MFJ-1278B may be involved in. You can always interrogate the link status by giving the CONNECT command without parameters. If you attempt a connection when your MFJ-1278B is not in the disconnected state, the MFJ-1278B will display the link status but will take no other action. The following messages appear in response to the CONNECT command.

Link state is: CONNECTED to call1 [VIA call2[,call3...,call9]]

This display shows the station your MFJ-1278B is connected to and the digipeater route if any. The callsign sequence is the same sequence you would enter to initiate the connection.

Link state is: DISCONNECTED

No connection currently exists. You may issue the CONNECT command to initiate a connection.

Link state is: CONNECT in progress

You have issued a connect request, but the acknowledgment from the other station has not been received. If you issue a DISCONNE command, the connect process will be aborted.

Link state is: DISCONNECT in progress

You have issued a disconnect request, but the acknowledgment from the other station has not been received. If you issue a second DISCONNE command, the MFJ-1278B will go immediately to the disconnected state.

Link state is: FRMR in progress

The MFJ-1278B is connected but a protocol error has occurred. This should never happen when two TAPR TNCs are connected. An improper implementation of the AX.25 protocol could cause this state to be entered. The MFJ-1278B will attempt to re-synchronize frame numbers with the TNC on the other end, although a disconnect may result. Connects are not legal in this state, and a disconnect will start the disconnect process.

The MFJ-1278B will inform you whenever the link status changes. The link status may change in response to a command you give the MFJ-1278B (CONNECT or DISCONNE), a connect or disconnect request packet from another station, a disconnect due to the retry count being exceeded, an automatic time-out disconnect (CHECK), or a protocol error.

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Epson MFJ-1278B manual Link Status Messages