ADTRAN ISU 512 user manual DSR Options

Chapter 5: Configuration

3=CONFIG 2=DTE options

7=DTR Options 1=Ignore DTR (default) 2=Idle when Off 3=Off>On dial #0 4=Dial #0 if On 5=Answer if On

To store a number for automatic dialing see Dialing Options. Selecting Dial #0 if On allows calls to be automatically established when the DTR signal is in the active state. The unit attempts to establish a call using SN0-SN4 until the call is established or DTR goes inactive. Selecting Answer if On allows the unit to answer 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 the V.35 port terminates both calls; dropping DTR on the RS-530 port terminates only the call on the RS-530 port.

DSR Options

Selecting 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 if the network interface is in test or there is not an active call. OFF Link Down causes DSR to be disasserted if the network interface is disrupted. Use the fol- lowing menu path to set DSR Options:

3=CONFIG 2=DTE options

8=DSR Options

1=DSR forced on (default) 2=OFF Idle+Test 3=OFF Link Down

61202.086L1-1 ISU 512 User Manual 45