chinacoal07 :telephone,safe telephone,explosion proof telephone
Product Introduction
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
1.can be amplified and radio call
2. Grading control mode, scattered power amplifier, high 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, clear on the phone in 115 dB high noise environment
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
Main Parameter
Temperature conditions
1. Rate temperature: -20~+40°C
2. Rate humidity :≤98(+25°C)
3. Amplify belling level: ≥150dB
4. Communication : 5km exchange line
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 |
