Telephone Trainer Kit

Product Description

Telephone Trainer is complete working model of telephone. It gives hands on experience on basic telephony concepts, working and different experiments on telephone. The trainer comes complete with exhaustive experiment manual, accessories, test points, and LED's for indication. The complete circuit is printed on single sided PCB in section wise format, depicting the complete flow of system. Practical experience on this trainer carries great educative value for Science & Engineering Students.

Experiments :

Understanding of telephone
Study of telephone features
Study of speech circuit
Study of ringer
Study of tone dialing
Study of pulse dialing
Study of switching mechanism between subscriber : Incoming call and Outgoing call

Features:

Single sided PCB depicting different working sections
35 test points and LEDs provided on board to study signals
Power from external telephone line, no power supply is required
Pulse dialing as well as tone dialing facility
Dialer and ringer section
Mute, Redial and ON / OFF hook switches
Telephone Handset: 1 Nos

Specifications :

Line in section : One dot line connection port
Handset : One handset connection port
Keyboard : 4x3 matrix keyboard
Dialer : Tone and pulse
Facilities : Redial up to 32 digits, Mute, Redial, Flash, Pause switches
Indicators : Line in, Hook, tone and ringer, Call mute section
Control : Ringer volume control, Ringer speed control
Speech path : Fully Non-Blocking
Dial pulse ratio : 10 pps + / - 10%
Tone frequency : 430 Hz
Input power : From telephone line

Test Points:

35 No. of TP's test points are provided on board to observe intermediate signals
Good Quality, reliable terminal/sockets are provided at appropriate places on panel for connections / observation of waveforms
Strongly supported by detailed Operating Instructions, giving details of Object, Theory, Design procedures, Report Suggestions and Book References