详情描述

The SPHJ-D-A4 explosion-proof amplifier speaker station is a new generation industrial intercom developed by Xiaobeng Technology, based on the needs of industry users and tailored to the new industry engineering standards of the era. From the outset of its design, the model considered the impact of wireless coverage systems on communication terminals. Through full-circuit digital transformation and the addition of an automatic microphone muting function, it boasts excellent anti-interference performance. Compared to the previous generation, it offers clearer sound quality, lower background noise, and noise-free amplification, providing a user experience comparable to public broadcasting products.


Product Features:

● The phone case is made of high-strength aluminum alloy material, with anti-static properties.

● Utilizes a sealed structural design for dust, rain, moisture, and corrosion resistance.

● Reach IP67 protection level, suitable for harsh environments.

● This unit can be used in conjunction with systems such as programmable scheduling switches and voice gateways.

● Digital circuit design with strong anti-interference capability and digital noise reduction function.

● When switching to loudspeaker mode, a prompt sound or direct amplification can be set.

● The ringer signal can operate simultaneously with the horn and external speaker.

● Equipped with automatic pick-up and hang-up control, capable of automatically switching to and from the loudspeaker call state.

● Features busy tone detection.

● zuiRedial feature for the subsequent phone number group.

● Numbered disk with luminescent indicators.

● Call-in ring count adjustable.

● Phone and housing integrated design for anti-theft function.

● Ex d ib IIB T6 Gb


Terms of Use

Ambient Temperature:-30℃～+60℃

Relative Humidity:10%～95%

Atmospheric Pressure:86kPa～106kPa

Environmental Noise:≥90dB

Transmission characteristics

The transmission specifications of the telephone in normal operating conditions, including the frequency response for transmission and reception, amplitude characteristics, and distortion, should comply with the requirements of GB/T 15279-94 for telecommunication transmission characteristics.

Dialing Features

Pulse dialing

    Dial pulse duty cycle ratio:1.6 ± 0.2：l

    Dial pulse rate:10 ± 1 cycles/second

2. Dual-tone multi-frequency dialing

    Standard Frequency:Low Frequency Groups 695 Hz, 770 Hz, 852 Hz, 941 Hz

High Frequency Groups: 1209 Hz, 1336 Hz, 1477 Hz, 1633 Hz

    Frequency Deviation:No more than ±1.5%

   Voltage Level:Low Frequency Group –9 dBm ± 3 dB

High-frequency group –7 dBm ± 3 dB

    Combination signal high and low level difference:2 ±1 dB

Total distortion due to harmonic intermodulation is at least 20 dB lower than the fundamental wave level.


Bell Flow Trigger Module

● The bell stream triggering module should be capable of reliably switching 220VAC AC power under the action of bell stream not exceeding 80mVA.

● Module Conductance Drop ≤ 1.5V

● Module leakage current ≤ 2mA

● The module allows a current of ≤2A.


Spring Fork Characteristics

The magnetic reed switch used in the handset should be able to switch normally during the hang-up and pick-up action of the handle.

2. The spring-loaded fork still functions normally after 20×10^4 cycles.


Safety

The phone should exhibit no arcing or breakdown under normal atmospheric conditions when subjected to a 50Hz sine AC voltage with an RMS value of 500V for 1 minute.

2. The insulation resistance of the phone should not be less than 50MΩ under normal atmospheric conditions.


Basic environmental adaptability

The phone's transmission and reception loudness rating values are allowed to deviate by 3dB from the standard at temperatures of -10℃ and 40℃, and comply with GB/T15297-94.

2. The phone has been stored at temperatures of -40℃ and 55℃. After recovery under normal atmospheric conditions, it should meet the requirements for the above voice transmission characteristics, dialing characteristics, ring trigger module, and ringer switch characteristics.

3. The phone should not exhibit any mechanical damage or structural loosening after being subjected to a sweep vibration within the frequency range of 10-55Hz with a displacement amplitude of 0.35mm. It should also meet the requirements for the above voice transmission characteristics, dialing characteristics, ring trigger module, and ringer characteristics.

4. The phone should not exhibit any mechanical damage or structural loosening after being subjected to a peak acceleration of 100m/s² for a pulse duration of 16ms, and it should meet the requirements for the above voice transmission characteristics, dialing characteristics, ring trigger module, and spring-loaded lever characteristics.

At 40℃ with relative humidity of 90% to 95%, the transmission and reception loudness rating deviations are allowed up to 3 dB, and the insulation resistance should not be less than 5MΩ.


● The housing of the phone meets the IP67 requirements as specified in GB/T 4942.2-93.

● The phone's other features comply with the requirements of GB/T 15279-94.

● Noise-resistant testing facility, with clear voice transmission at 95% or above in a 115 dB noise environment

● Ring Tone Level > 80 dB