Mining Explosion proof telephones
Explosion-proof telephone explosion-proof telephone was specially developed for flammable and explosive place such as coal, commonly used in factories and mines of H a level 2 places. Explosion-proof telephone production must conform to the "first machinery industry department, coal, petrochemicals, i.s. explosion-proof electrical equipment manufacturing inspection interim provisions", meet a level 2 H explosion-proof requirements.
1.Robust aluminium alloy die-cast body, Vandal & tamper-resistant hardware
2. Waterproof rating IP66 dust proof.
3. Full keypad with memory, 10 button programmable telephone, support free dial.
4. Magnetic reed hook-switch.
5. Heavy Duty handset with hearing Aid compatible receiver, Noise canceling microphone.
6. Handset with industrial strong curly cord .
7. Stainless Steel keypad keep waterproof and dusty proof.
8. Door cover: orient automatically and good self - closing, convenient for use.
9. Temperature range from -40 degree to +70 degree.
10. Support echo cancellation.
11.The housing covered with a layer of reflective label for easy identification at night.
12. Powder coated in UV stabilized polyester finish.
13. Application: Hazardous dust and gas atmospheres, petrochemical industry,Tunnel, metro, railway, LRT, speedway, marine, ship,offshore, mine, power plant, bridge etc.
Types of protection: II 2G Ex db ib IIB T4 Gb -40℃ to 60℃
VoIP SIP2.0 telephone DTMF dialing MTBF:100000hours
Call Control Signaling:VOIP SIP Info(DTMF), RFC 2833(DTMF)
Power supply:DC and POE
Auxiliary Contacts:1 Aux Output, dry contact
Contact Ratings. Load: Resistive load
Rated load:0.3 A at 125 VAC; 1 A at 30 VDC
Rated carry current:1A
Max.switching voltage:125 VAC,60VDC
Sound level of ringing:over 120dB(A). speed dialing keypad:
Super strong function is available for dialing 12 groups of numbers
stored in the memory
Audio Codes:G.711, G.722, G.729
Network:10/100 BaseTX Ethernet, RJ45 connectors, Cat5e or better
IP Protocols:IPv4, TCP, UDP, TFTP, RTP, RTCP, DHCP, SIP
LAN Protocols:Power over Ethernet(PoE,802.3af), WLAN(IEEE 802.3af), Network Access Control(IEEE
802.1x),STP(IEEE 802.1d), RSTP(IEEE 802.1d-2004)
Programming:Non-volatile flash memory programming and configuration through Web GUI
Management and Operation:DHCP and static IP, remote automatic software upgrade, centralized
monitoring, status LED
Echo cancellation code:G.167/G.168
Housing: construction robust aluminium alley die-cast body
Unit size: 290*185*118mm
Ambient temperature: -40℃ to 70℃. Relative humidity:10%~95%
Atmospheric pressure: 86~106Kpa Circumstance noise:less than 60dB(A)
Degree of protection: IP66 according to EN60529
Impact protection: IK 09 according to EN50102