Intelligent broadcasting terminal

I. Product Overview

This product is an intelligent broadcasting terminal that integrates voice synthesis, remote control, and status feedback functions. Supports text to speech (TTS), remote command broadcasting, local trigger broadcasting, relay control and other functions, suitable for various scenarios such as industrial sites, warehousing and logistics, security systems, intelligent buildings, etc.

2, Main functions

• Support text to speech broadcasting in both Chinese and English
• Support network communication (TCP/IP)
• Support local switch triggered broadcasting
• Support relay output control
• Support volume, speech rate, and intonation adjustment
• Support remote parameter configuration and status reading
• Supports multiple protocols: private protocol, standard network protocol, MQTT (optional)

3, Technical parameters

4. Interface definition

1. Power interface

• Red: positive pole (+)
• Black: negative pole (-)

2. Communication interface

• Green: RS485 A
• Blue: RS485 B

3. Audio output

• 3.5mm headphone jack: can be connected to an active speaker
• Wiring terminal: can be connected to passive speaker (≤ 30W)

4. Switch input

• IN1/IN2: Trigger input
• COM+/COM −: Public End

5. Relay output

• DO1/DO2: Relay output port
• Support switching between normally open/normally closed

5, Instructions for use

1. Installation steps

1. Fixed device in installation position
2. Power on (pay attention to polarity)
3. Network or serial communication cable
4. Speaker or headphone
5. Power on, wait for system initialization to complete (about 6 seconds)

2. Network configuration

• Default support for automatic IP acquisition (DHCP)
• Can be manually set to static IP (through configuration software or commands)
• Supports TCP server/client mode switching

3. Voice broadcast mode

• Remote broadcast: Sending text content through the network, the device automatically synthesizes voice and broadcasts
• Local trigger broadcast: Triggering preset voice content through switch input
• Loop broadcast: Can set loop content and interval time

4. Relay control

• Supports remote command control of relay switch
• Supports jog output (delayed automatic shutdown)
• Supports linkage relay output during voice broadcast

VI. Protocol description (brief)

1. Private protocol (string)

• Format:#播报内容
• Example:#欢迎光临

2. Relay Control (Hexadecimal)

• Turn on Relay:CC DD A1 03 01 FF FF
• Turn off Relay:CC DD A1 02 01 FF FF

3. Status Reading (Hexadecimal)

• Read Relay Status:CC DD A1 01 FF FF
• Read Input Status:CC DD A1 04 FF FF

7. Precautions

• Do not plug or unplug the interface when it is live
• Please ensure that the power supply voltage is within the rated range
• Avoid prolonged exposure to high temperature, high humidity, and strong electromagnetic interference environments
• Please do not disassemble the equipment without authorization to avoid damaging internal components
• When using passive speakers, please pay attention to power matching to avoid overload

8, Common faults and solutions

9, Appendix

1. Identifier Description (Partial)

• [v5]Set the volume to 5 (range: 1-10)
• [s5]Set the speaking speed to 5
• [t5]Set the tone to 5
• Example:[v5]您好，欢迎光临

2. Prompt tone call

• Supports 15 built-in prompt sounds
• Calling method:#ring_1, #ring_2 Wait
• Note: The prompt sound name must have spaces or punctuation marks before and after it