The EX-BH621 explosion-proof loudspeaker telephone supports the standard SIP protocol and is highly compatible with commonly used IPPBX and network dispatching platforms on the market.
It is a special telephone designed specifically for environments with flammable, explosive gases or dust, such as gas stations, oil fields, hydrogen stations, chemical plants, underground pipe galleries and gas compartments.
Suitable for long-term installation in various harsh environments, it features explosion protection, water resistance, moisture resistance, dust resistance, cold resistance, frost resistance, high temperature resistance, oxidation resistance, corrosion resistance and impact resistance.
Network Transmission: Flexible Interconnection, High-Speed ExperienceBased on the SIP protocol, it enables high-speed transmission, wide coverage, and real-time interaction, allowing information to flow freely in the digital world. Telephone Line Transmission: Classic & Stable, Always AccessibleCarries analog signals via traditional copper cables and is compatible with ADSL/VDSL technology. It ensures basic communication even when networks are limited, making it ideal for harsh environments or emergency scenarios with reliable, uninterrupted connectivity. Fiber Optic Communication: Ultra-Fast, Lossless FutureLight pulses travel through glass fibers, breaking through distance and attenuation limits to provide TB-level ultra-low latency transmission. Featuring strong anti-interference and large capacity, it is designed for high-standard scenarios, paving the way for the "information highway" of the intelligent era.
The explosion-proof telephone can be quickly integrated with on-site alarm equipment (such as explosion-proof speakers and alarm lights) through a dedicated hardware interface.When an early warning signal is triggered, it can drive the networked alarm devices in real time and simultaneously activate the speakers to play pre-recorded emergency broadcasts.This ensures millisecond-level multi-device collaborative response in emergency situations.It also supports two-way interaction of alarm information with third-party systems such as fire protection and security systems, forming a complete closed-loop management for emergency response.
The explosion-proof telephone adopts a multi-level hybrid power supply architecture, fully adapting to power conditions in various deployment environments.
| Item | Specification / Description |
|---|---|
| Explosion-Proof Sign | ExdibIICT6Gb / EXtDA21IP66T80℃ |
| Protection Level | IP66 waterproof and dustproof protection |
| External Size | 343 × 294 × 206 mm |
| Material | Aluminum alloy die-casting shell with stainless steel keyboard |
| Color | Yellow |
| Overall Weight | 12 kg |
| Installation Method | Wall mounted |
| Hazardous Gas Areas | Suitable for explosive gas environments in Zone 0, Zone 1, and Zone 2 |
| Gas Group | Suitable for IIC explosive gas environments |
| Combustible Dust Areas | Suitable for combustible dust environments in Zones 20, 21, and 22 |
| Temperature Group | Suitable for T1–T6 temperature groups |
| Housing Design | Aluminum alloy shell with high-temperature electrostatic spraying for anti-static and corrosion-resistant performance |
| Handset and Keyboard | Riot-resistant and noise-reduction earpiece, stainless steel keyboard, and zinc alloy hook switch |
| Protocol Support | Supports SIP 2.0 protocol |
| Call Function | Supports number-key dialing, terminal calling, and full-duplex intercom |
| Audio Output | Built-in high-quality amplifier with 30W output; external speaker supports 25W output |
| Volume Adjustment | Earpiece and speaker volume can be adjusted through the keyboard |
| Network Connection | Can connect directly to Ethernet and support cross-network-segment routing |
| Power Supply | Supports PoE power supply with anti-surge and anti-interference capability |
| Rated Voltage | AC220V |
| Network Protocols | TCP, UDP, ICMP, SIP 2.0 |
| Frequency Response | 250–3000 Hz |
| Amplification Output Power | 10–25W |
| Ambient Temperature | -40℃ to +60℃ |
| Atmospheric Pressure | 80–110 KPa |
| Relative Humidity | ≤95% |
| Lead-Out Wire Hole | 3-G3/4” |
