Usrobotics V.34 Bedienungsanleitung PDF herunterladen (Seite 78)

COURIER HIGH SPEED MODEMS

Queries and Help Screens 6-5

GSTN (General Switch Telephone Network) Clear Down:

The connection was non-ARQ and DTR was dropped from

one side of the connection, or the DISC frame was corrupted

due to noise.

Illegal Command Code: The modem received an invalid V.42

bis (compression) frame.

Inactivity timeout: The modem detected no activity on the

line for the duration specified in Register S19 (default is 0,

timer disabled).

Invalid Codeword: The modem received an invalid V.42 bis

(compression) frame.

Invalid speed: The modem is set to &N1 or higher, for a

fixed link rate, and the remote modem is not operating at the

same rate.

LD received: The remote modem sent an MNP error control

Link Disconnect request.

Loop loss disconnect: The modem detected a loss of current

on the loop connecting it with the telephone company central

office. This usually occurs because the remote modem has

hung up: the central office drops current momentarily when

there is a disconnect at the other end of a call. Unless

hangs up at loop loss.

Loss of carrier: The modem detected loss of the remote

modem's carrier and waited the duration specified in

MNP incompatibility: The modem is set to &M5 and the

remote modem does not have MNP capability, or there was

an MNP negotiation procedure error.

Retransmit limit: The modems reached the maximum of

twelve attempts to transfer a data frame without error.

SABME Timeout (Set Asynchronous Balance Mode

Extended): The modems failed this part of V.42 link

negotiation.

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Usrobotics V.34 Bedienungsanleitung Seite 78