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Help CenterAmplifying Tone Telephone Used /telephone Used Mine Waterproof for Sale
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explosion proof telephone, mining telephone
This product can be most PBX compatible, suitable for high humidity, du-st, strong corrosive environment use.Such as subway, tunnel, mine, min-e,power plant, dam, gas station, gas-works , wharf, iron and steel company, etc.
Operation:
1. Pick/hang way: pick/hang up way to handle control mode, pick machine to get through, hang machine is disconnected;
2. Answer the call: when there is a telephone, the telephone ring, remove the handle, you can talk to each other, after the call to hang back to handle;
3. Call: remove the handle, according to the common phone call way, talking to each other;
4. The machine has the automatic switching function, when the phone is ringing three times, after the machine automatically when calling can be called external speakers to talk;
5. Automatic disconnection function, after the busy tone can be automatically detected bolt, the unit did not hang up the handle also can hang up.Calling inbound not busy.
Arguments:
IP Grade |
IP67 |
Environment temperature |
-40~+70℃ |
Relative humidity |
≤95% |
Barometric pressure |
80~106KPa |
Feed-voltage |
48-60V |
Feed current |
15mA |
Call transfer index |
SLR≤12,RLR≤-1,STMR≥10 |
Output impedance |
600Ω |
Frequency Response |
300~3400 Hz |
The line output audio signal level |
+2dB |
Environmental noise |
≤90dB |
Distortion factor |
≤2% |
Ringing sound level |
≥90dB |
Way to install |
wall hanging |
max vol |
≥120dB |
Speaker Power |
30W |
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