4. Configuration Options4-40 September 2002 9128-A2-GB20-80Monitor RTS (Control)Possible Settings: Enable, DisableDefault Setting: EnableSpecifies whether the state of the Request To Send (RTS) circuits on the user data portwill be used to determine when valid data communication is possible with the DTE. Whenthis condition is detected, CTS is deasserted, LMI is declared down, and no furthertransfer of frame relay data can occur on this interface.Enable – Interchange circuit CA (ITU 105) – RTS is monitored to determine when validdata communication is possible with the DTE.Disable – RTS is not monitored. RTS is assumed to be asserted and data is beingtransmitted, regardless of the state of the lead.Monitor DTRPossible Settings: Enable, DisableDefault Setting: EnableSpecifies whether the state of the DTE Ready (DTR) circuit on the user data port will beused to determine when valid data communication is possible with the DTE. When thiscondition is detected, an alarm is generated, LMI is declared down, and no further transferof frame relay data can occur on this interface.Enable – Interchange circuit CD (ITU 108/1/2) – DTR is monitored to determine whetherdata should be transmitted to the DTE.Disable – DTR is not monitored. DTR is assumed to be asserted and data is beingtransmitted, regardless of the state of the lead.Table 4-7. Data Port Physical Interface Options (3 of 5)