Chapter 5: Configuration61202.086L1-1 ISU 512 User Manual 453=CONFIG2=DTE options7=DTR Options1=Ignore DTR (default)2=Idle when Off3=Off>On dial #04=Dial #0 if On5=Answer if OnTo store a number for automatic dialing see Dialing Options. Selecting Dial #0if On allows calls to be automatically established when the DTR signal is in theactive state. The unit attempts to establish a call using SN0-SN4 until the callis established or DTR goes inactive. Selecting Answer if On allows the unit toanswer an incoming call only if the DTR signal is asserted.During dual-port mode, if DTR options is set to Idle when off, dropping DTR on theV.35 port terminates both calls; dropping DTR on the RS-530 port terminates only thecall on the RS-530 port.DSR OptionsSelecting DSR forced on causes the DSR signal on the DTE connector to al-ways be asserted. Selecting OFF Idle + Test causes DSR to be disasserted ifthe network interface is in test or there is not an active call. OFF Link Downcauses DSR to be disasserted if the network interface is disrupted. Use the fol-lowing menu path to set DSR Options:3=CONFIG2=DTE options8=DSR Options1=DSR forced on (default)2=OFF Idle+Test3=OFF Link Down
