Paradyne COMSPHERE 3920Plus Technical Reference Manual page 135

Gain Hit Thresh: 010 ASCI
Nxt " 010 ASCI
This configuration option only appears when Autorate is set to GainHit.
Gain Hit Threshold. Determines the rate of gain hits required to force the modem to shift to the next lowest line rate. The
threshold is specified as a decimal number 0 through 127 inclusive, representing the maximum number of gain hits that
will be tolerated in a 15-minute interval. The default is 010 ASCII, which has the effect that the eleventh gain hit in a
15-minute interval forces a downshift.
The AT command is S-Register S39 = n, where n is 0–127.
V32bis Override: Disable
Nxt Disable 2400
This configuration option is ignored unless Leased-Line Rate is 4800(V32b).
V.32bis 4800 Override. Activates the Paradyne Point-to-Point Diagnostic 2400 bps modulation. Allows the modem to
use a non-standard, point-to-point modulation capable of secondary channel diagnostics while running at 2400 bps.
Leased Tx Level: 0
Nxt 0 –1 –2 –3 – 4 – 5 – 6 –7 – 8 – 9 –10 –11 –12 –13 –14 –15
Leased Transmit Level. Selects the modem's transmit power level over leased lines. The transmit output level can be
selected in 1 dBm decrements from 0 dBm to –15 dBm.
NOTE: The leased TX level is limited to –1 dBm in all countries except North America.
NOTE: The factory default setting is country dependent. Default is 0 in North America.
The AT command is S-Register S45 = n, where n is from 0 to 15 corresponding to 0 dBm to –15 dBm.
Asymmetric Rate: Enable
Nxt Enable Disable
Asymmetric Rate. Controls rate symmetry when running V.34 modulation by enabling or disabling the V.34 modulation
from using equal transmit and receive rates.
Enable – The modem operates in Asymmetric Rate mode (the transmit and receive rates can be different) when
running V.34 modulation. The Asymmetric Rate configuration option must be enabled in both modems.
Disable – The modem operates in Symmetric Rate mode (the transmit and receive rates are identical) when running
V.34 modulation. Either modem can force Symmetric Rate mode by disabling the Asymmetric Rate configuration option.
The AT command is S-Register S15 = n, where n is 0 for Enable and 1 for Disable.
NOTE: This configuration option is typically disabled when the MUX is in use, and it is enabled when the MUX is disabled.
If you are using a factory template that has the MUX enabled, and then you manually disable the MUX, you must
verify that this configuration option is set to the correct value.
2 Sec LSD Hold: Disable
Nxt Disable Enable
This configuration option only appears when V.34 is enabled.
Two-Second LSD Hold. Holds the Line Signal Detect (LSD) for a maximum of two seconds. During this time, the carrier
can drop completely and be reacquired by the receiver without retraining.
Enable – Loss of carrier, over a short period of time, will not cause a training sequence for the reacquisition of the
communications link.
Disable – Loss of carrier causes a training sequence for the reacquisition of the communications link.
The AT command is S-Register S32 = n, where n is 0 for Disable and 1 for Enable.
3920-A2-GH30-40
Leased Line Configuration Options — Singleport Mode A
Table 5-11
(3 of 7)
October 1998
Configure Branch
5-59