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, 3 button programmable telephone.
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. Alarm Sounder: industrial standard coated steel body
9. Door cover: orient automatically and good self - closing, convenient for use.
10. Temperature range from -40 degree to +70 degree.
11. Support echo cancellation.
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.
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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)
With Alarm Sounder
Power supply: AC220V Power supply
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,30VDC
Sound level of ringing:over 120dB(A). speed dialing keypad:Super strong function is available for dialing 3 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, 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
Management and Operation:DHCP and static IP, remote automatic software upgrade, centralized monitoring. 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