chinacoal05
explosion electronic telephone , explosion telephone
KTH104 Mine explosion electronic telephone with 5km exchange line
Product Introduction
Application:
To be used in bad condition :high noisy,heavy damp.such as electrical factory,coal mining, As the explosive , inflammable conditions with gas, coal dust.
Features:
1. can be amplified and radio call
2. Grading control mode, scattered power amplifier, high the system reliability
3. Can be connected with with PBX scheduling switchboard etc. many kinds of communication system interface
4. RACES have the anti noise performance, can be in 115 dB high noise environment clear on the phone
5.Has the call out of selected calling, group calling, function, between stations can be arbitrarily selected calling on the phone
6.Have shrinkage dial-up function; An intelligent of anti noise, enlarge louder, auto hung up , auto start up, unattended , all calling, group calling, duplex calling, , dustproof , waterproof etc. function
7. The calling stations is sealed up , can be installed in any bad environment
8. Has the linkage control function
9. Comply with ITU-T k. 20 standard of lightning and over-voltage protection performance
Temperature conditions:
1. Rate temperature: -20~+40°C
2. Rate humidity :≤98(+25°C)
3. Amplify belling level: ≥150dB
4. Communication : 5km exchange line
Main Parameter
Model | KTH104 |
Max input DC voltage | DC30V~DC48V |
Max input DC Current | DC30mA |
Max bell stream voltage | 40V(25Hz-1500Hz) |
Max bell stream current | 45mA |
Input AC voltage | 220V;127V |
Belling Level | ≥85dB |
