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DCP Configuration
Table
(2 of 9)
DTE Interface Configuration Options Ð Multiport Mode l
Bakup_TXClk_Src: Internal
Nxt Internal RXC_Loop Port1 Port2 Port3 Port4
This configuration option only appears when Dual_Leased_Ln is configured for Enable.
Backup Transmit Clock Source. Selects the clock reference source when operating in the Dual Leased Line Mode. This is a special mode in which one leased line is used to back up another.
NOTE: If the DTE Bridge is enabled, Ports 2, 3, and 4 are not available.
Internal ± The transmit data's clock source is derived from the modem's internal clock. This clock is available as an output on Pin 15 (TXC) of the
Receive Clock Loop ± The modem's transmit clock is derived from its received analog signal. The derived clock is available as an output on Pin 15 (TXC) of the
Port1 ± The transmit data's clock source is provided on Pin 24 (XTXC) of the
Port2 ± The transmit data's clock source is provided on Pin 24 (XTXC) of the
Port3 ± The transmit data's clock source is provided on Pin 24 (XTXC) of the
Port4 ± The transmit data's clock source is provided on Pin 24 (XTXC) of the
CT111_Rate Cntl: Disable
End Disable Fallback1 Fallback2
This configuration option does not appear when V.34 is enabled for a leased or dial line.
CT111 Rate Control. Allows the DTEs to control modem rate via Pin 23 of the
Disable ± Disregards all CT111 Rate Control.
Fallback1 ± Forces the modem to decrease its configured data rate to the next lower data rate when any of the CT111 signals are OFF. When all of the CT111 signals are ON, the modem returns to its previous data rate.
Fallback2 ± Forces the modem to decrease two data rates (while remaining in the same modulation scheme) when any of the CT111 signals are OFF. When all of the CT111 signals are ON, the modem returns to its previous data rate. Note, Fallback2 is not available for TMp tributaries.
NOTE: For proper CT111 operation, disable the Autorate configuration option.
MSD Port Control: Host
Nxt Host Modem
This configuration option does not appear when MSD is disabled.
Modem Sharing Device Port Control.
Host ± The host computer determines the polling sequence that controls which port transmits at any given time. When the DTE/DCE equipment attached to a port raises RTS
Modem ± The modem determines the polling sequence that controls which port transmits at a given time. The first port to raise RTS will receive CTS
November 1996 |