User Manual Of Weatherproof Telephone JWAT304-305
Страница 1: ...User Manual Of Weatherproof Telephone JWAT304 305...
Страница 2: ...Characteristics 1 3 Technical Parameters 2 4 Product Dimensions and Installation 2 5 How to Use 5 6 Transportation and storage requirements 6 7 Unpacking and inspection 6 8 Attention 6 9 Safety warni...
Страница 3: ...nd noise removal circuit in a machine And preferably foreign well known brand components After high and low temperature testing procurement and production the circuit undergoes strict protection treat...
Страница 4: ...g voltage DC48V 3 4 Frequency response 300 3400 Hz 3 5 Loop impedance 680 3 6 Dialing level 6 8 db 3 7 Standard DTMF 3 8 Distortion degree 2 3 9 Protection level IP66 3 10 Size specifications 12 2 8 3...
Страница 5: ...ction The police light wire UL2464 4 18AWG is connected to the two wires of the waterproof speaker through the terminal block in the waterproof junction box The wiring sequence and color of the police...
Страница 6: ...n suppressed when the telephone line leaves the factory You can use the adapter to connect in the junction box or cut off the crystal plug and connect it directly in the junction box with the system t...
Страница 7: ...dial an emergency number with one touch Hang up Press the hang up button to enter the FLASH mode you can dial a third party phone 5 1 2 How to answer a call JWAT305 When there is an incoming call the...
Страница 8: ...Attention 8 1 Please read this manual before use to understand the product performance and use methods so as to avoid accidents and damage to the product due to mis operation 8 2 The product should b...
Страница 9: ...s 48V Reconnect the unconnected phone line Some keys on the keyboard have no effect Check if the cable between keyboard and motherboard is loose Plug the keyboard cable back into the motherboard and p...
