Owing to our untiring effort and dedication, we have renowned amongst one of the trustworthy manufacturers and suppliers of Electro Magnetic Telephone. Innovatively designed by employing advanced technologies, our telephones are plays a significant role in different critical areas. Our telephones are used as main means as well as the back-up communication systems for varied critical situations. Creatively modeled, our collection of Electro Magnetic Telephone is available to our customers in customized specifications.
Features:
Further Details:
The magneto telephone continues to play an important role in critical areas either as the main means of communication or as a back-up system. Continual design improvements ensures its usefulness in intensifying situations.
Our vast experience and user feedback from across the world have prescribed the features of our latest model M-12, which includes
Endearing features of magneto telephones are long distance capability and ability to work with out a centralized exchange, thereby eliminating the chance of total network failure. Even the power supply is local to reach telephone, and can be just a pair of flashlight batteries. Optionally the power required can be produced by its own generator.
Technical Specifications
Parameter | Specification IRS TC 36/97 limits | M-12performance |
---|---|---|
Power supply range | 1.5 to 3 VDC | 1.6 to 16VDC |
Nominal current @ 3V | <25mA | <20 mA |
Insulation @ 500VDC | >5 mega ohms | >500 mega ohms |
Send Amplification @ 5mV | >774 mV (+43.8dB) | >800 (+44 dB) |
Receive Amplification @ 193mV | >100 mV (-5.7 dB) | >137 mV (-3 dB) |
Side-Tone Suppression | <100 mV (-12.0 dB) | <100 mV (-12 dB) |
Insertion loss on-hook | <18 mV (0.1 dB) | <2 mV (0.02 dB) |
Insertion Loss Off-hook | <68 mV (0.8dB) | <68 mV (0.8dB) |
Generator Output-open | >80V AC | >80V AC |
Generator Output-max load | >28V AC | >30V AC |
Dynamic working range @3Vps | >20 dB | >20 dB |