DCP Configuration
5-27
3910-A2-GN32-40
September 1998
Table 5-3
(3 of 5)
Line Dialer Configuration Options
Fast Disconnect: Disable
Nxt Disable Enable
Fast Disconnect. Allows the modem to disconnect immediately after receiving a disconnect command from
a local DTE or its own diagnostic control panel.
H
Disable
The modem follows its normal disconnect sequence by issuing a cleardown sequence or long
space disconnect. This is also known as a graceful disconnect since the other modem receives
advance notice of a disconnection.
H
Enable
Use this setting if the DTE requires that the modem be made available as soon as possible after
receiving a disconnect command.
NOTE: This abrupt method of disconnecting may cause problems with the remote modem, which may
interpret the disconnection as an error instead of a valid disconnect.
The AT command is S-Register S85=n, where n is 0 for Disable and 1 for Enable.
Line Crnt Disc: Enab(>8msec)
Nxt Enab(>8msec) Enab(>90msec) Disable
This configuration option does not appear on Models 3910-A1-401 and 3911.
Line Current Disconnect. Determines the modem’s response to short interruptions of line current. The loss
of line current is one method of disconnecting a call.
H
Enable > 8-millisecond
Disconnects the modems if line current is disrupted for more than 8 milliseconds.
H
Enable > 90-millisecond
Disconnects the modems if line current is disrupted for more than 90-milliseconds. Use this setting
if the modem constantly disconnects when set to Enab(>8msec).
H
Disable
Ignores any disruptions in line current such as call waiting.
The AT command is S-Register S65=n, where n is 0 for Enable (>8 msec), 1 for Enable (>90 msec), and
2 for Disable.
Long Space Disc: Enable
Nxt Enable Disable
Long Space Disconnect. Determines the modem’s response to a continuous spacing condition sent from the
remote modem before it goes on-hook. Issuing a long space is one method of disconnecting a call.
H
Enable
Modem disconnects if it receives a continuous space from the DTE. For modulations lower than
4800 bps, the modem’s transmitter will transmit 4 seconds of long space upon a disconnect.
H
Disable
Modem does not disconnect if it receives a continuous space from the DTE. Modem will not
transmit a long space disconnect.
The AT command for Disable is Y0.
The AT command for Enable is Y1.
