Paradyne COMSPHERE 3920PLUS Technical Reference Manual page 128

Configure Branch
Table 5-9
(3 of 4)
Line Dialer Configuration Options — Singleport Mode A
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.
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.
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 3920-A1-401, 3920-A1-411, 3920-A2-xxx, 3921-B1-001, and
3921-B1-011.
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.
Enable > 8-millisecond – Disconnects the modems if line current is disrupted for more than 8 milliseconds.
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).
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.
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.
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.
No Carrier Disc: 2sec
Nxt 2sec Disable 5sec 10sec 20sec
No Carrier Disconnect. If the modem no longer receives carrier from the remote modem, it disconnects the call. This
configuration option determines how long carrier is OFF before the modem disconnects. Loss of carrier is one method of
disconnecting a call.
2, 5, 10, 20 sec – Modem disconnects if carrier turns OFF for more than 2 seconds, 5 seconds, 10 seconds, or
20 seconds.
Disable – Modem does not disconnect if carrier turns OFF.
NOTE: The range of allowable values may be restricted in some countries.
The AT command is S-Register S10 = n, where n is 255 for Disable or 0 to 254 in 0.1 second increments for Enable.
3920-A2-GH30-40 October 1998 5-51