DD-5601 is used in testing communication equipment like cordless phones that are connected to telephone lines. It works by minimizing EMI noises emitted by telephone lines and especially by LED window. The two tone generator in the unit allows tests on HA(Home Automation)devices connected to the telephone line by giving out various simulated signals. RS-232C interface and 16 bits of I/O port are suitable for automation. For user's convenience, easy changes of ring signal, tone level and access to program mode are provided. Any error that occurs during fast re-dial can be verified with the View Mode that replays the test results one by one with the key. Automatic TX and Rx tests can be done through the Exit In/Out terminal located at the rear panel.

* 16 bits of programmable digital I/O port for automatic line formation
* Ring back tone, Dial tone and Busy tone output for home automation devices and automatic dialing devices like card checker.
* Easy setting of tone level, ring level and QC limit through front keys
* Verification of final result with the View function after fast re-dials
* Programmable high/low trigger level function for pulse dial test
* 16 memory Banks for various test conditions recalled easily with one-touch key
* Programmable artificial line(7.5km) with 0.5km step
* Line voltage (115/230VAC) auto selection
* RS 232C interface standard

* Ring : Mode : Toggle, Auto sweep, Continuous
* Receiving : Dial Tone, Ring Back tone, Busy tone etc.
* Pulse : DIAL Speed (6.5~25PPS)
* Interface : RS-232C, GPIB
* Option : Caller ID