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JWBT820

JWBT820
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JWBT820

Product catalog summary
Technical Specifications
The JWBT820 Explosion Proof Telephone is designed with an IP66 defend grade and operates on an IP communication system. It is constructed from aluminum alloy and is available in yellow, with customization options. The device is marked with explosion-proof certifications ExdibIICT6Gb/EXtDA21IP66T80℃ and is powered by a telephone line. It supports a signal voltage of 100-230VAC, with a standby work current of ≤0.2A. The frequency response ranges from 250 to 3000 Hz, and the ringer volume is ≤80dB(A). It offers an amplified output power between 10 to 25W and has a corrosion grade of WF1. The operational temperature range is -40 to +60℃, with atmospheric pressure between 80 to 110KPa and relative humidity up to 95%. The device features a 3-G3/4” lead hole and is wall-mounted.

Application
The telephone is suitable for explosive gas atmospheres in Zone 1 and Zone 2, and dust Zones 20, 21, and 22. It is applicable in hazardous environments such as petrochemical industries, tunnels, metros, railways, marine settings, and more.

Features
The JWBT820 supports 2 lines SIP, SIP 2.0 (RFC3261), and various audio codes including G.711, G.722, and G.729. It is compatible with IP protocols like IPv4, TCP, UDP, and more. The device includes echo cancellation codes G.167/G.168 and supports full duplex communication. It features WAN/LAN bridge mode, DHCP, and PPPoE for xDSL. The telephone is built with a heavy-duty handset, noise-canceling microphone, zinc alloy keypad, and magnetic reed hook-switch. It is weatherproof with protection up to IP66-IP67 and operates in temperatures from -40 to +70℃. The device is powder-coated with a UV-stabilized polyester finish and is CE, FCC, RoHS, and ISO9001 compliant.

Product Dimensions and Packaging
The unit size is 343×294×206 mm, and it is packaged in a carton measuring 440×320×270 mm, using pearl cotton for protection. The net weight is 10 KG, with a gross weight of 10.5 KG.

Service and Support
The product comes with a three-year warranty under normal use and non-human damage conditions.
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Catalog excerpts

JWBT820-1

Ningbo Joiwo Explosionproof Science & Technology Co., Ltd. EXPLOSION PROOF TLEPHONE Product Model: JWBT820 Defend Grade:IP66 Communication System: IP Material: Aluminum alloy Color: Yellow (customized) Technical Parameters Explosion-proof mark Power Supply Telephone Line Powered Signal Voltage Standby Work Current Frequency Response Ringer Volume Amplified Output Power Corrosion Grade Ambient Temperature Atmospheric Pressure Relative Humidity Lead Hole Application 1. Suitable for explosive gas atmospheres Zone 1 and Zone 2. 2. Suitable for IIA, IIB explosive atmosphere. 3. Suitable for dust Zone 20, Zone 21 and Zone 22. 4. Suitable for temperature class T1 ~ T6. 5. Hazardous dust and gas atmospheres, petrochemical industry,Tunnel, metro, railway, LRT, speedway, marine, ship,offshore, mine, power plant, bridge etc. 86-574-58223619 No. 8 Middle Road Guoxiang Bridge Lanjiang Street Yuy

 Open the catalog to page 1
JWBT820-2

Ningbo Joiwo Explosionproof Science & Technology Co., Ltd. Features 1. Support 2 lines SIP, SIP 2.0 (RFC3261). 2. Audio Codes:G.711, G.722, G.729. 3. IP Protocols:IPv4, TCP, UDP, TFTP, RTP, RTCP, DHCP, SIP. 4. Echo cancellation code:G.167/G.168. 5. Supports full duplex. 6. WAN/LAN: support Bridge mode. 7. Support DHCP get IP on WAN port. 8. Support PPPoE for xDSL. 9. Support DHCP get IP on WAN port. 10. Aluminum alloy die-casting shell, high mechanical strength and strong impact resistance. 11. Heavy Duty handset with hearing Aid compatible receiver, Noise canceling microphone. 12. Zinc alloy...

 Open the catalog to page 2

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.