WEP5540/WEP5541 4G Village-leveled Emergency Audio Decoder

Input Interfaces

1 Wireless Input

F-type connector (75Ω)

1 Wired Input

F-type connector (75Ω)

1 FM Input

F-type connector (75Ω)

1 IP Input

100/1000Mbps, UDP protocol

1 GPRS Receiving Module

Supports remote emergency insertion via SMS or phone call

2 Audio Line Inputs

RCA connector

1 RDS Input

BNC connector

1 USB Input

USB port

Codec format: MP3

1 Microphone Input

6.35Mm jack

IP Output

1 IP output, UDP protocol, 100/1000Mbps network port

1 Audio Output

RCA connector

1 Monitoring Speaker

Output power: 3W

1 FM Output

F-type connector (75Ω)

1 Controlled Power Output

220V, 5A

Amplifier Output

Output Power

Greater than 200W, constant-voltage output

Technical Parameters

Reception Mode

Supports FM/IP

Reception Frequency Range

FM: 87MHz~108MHz

Frequency Output Range

76-108MHZ

RF Signal Input Level

FM: ≤-50dBm

Modulation Output Parameters

Distortion (100% modulation)

＜0.5%

Frequency Response (no pre-emphasis/de-emphasis)

±0.5dB

Signal-to-Noise Ratio (100% modulation)

> 60dB

Left/Right Channel Separation

> 40dB

Left/Right Channel Level Difference

＜0.4dB

Carrier Frequency Tolerance

≤2KHZ

Carrier Output Level

≥110dBuV

Spurious AM Noise

≤-45dB

Audio Frequency Response (100Hz-10kHz)

≤1.5dB, ≥-1.5dB

Audio Frequency Response (40Hz-15kHz)

≤1.5dB, ≥-3dB

Audio Total Harmonic Distortion

≤1.5% (±75kHz frequency deviation, 1kHz test frequency)

Audio Encoding/Decoding

Codec

MPEG-1 Layer 2

Sampling Rate

48KHz

Bit Depth

24-bit

Bitrate

64Kbps

System

LCD display with button operation

Simplified Chinese user interface

Temperature Range

Operating temperature: 0~45°C; storage temperature: -20~80°C

Power Supply

AC 100~265V±10%, 50/60Hz

Power Consumption

<135W