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Y121 Audible and Visual Alarm Specification
Related document: Y121 Technical Manual
Contents
- Overview
- Ordering Information
- Key Features
- Technical Specifications
- Interface and Wiring
- Installation and Usage Recommendations
1. Overview
Y121 is an audible and visual alarm designed for industrial and building automation sites, with RS485 Modbus RTU control. It supports voice playback, tri-color beacon control in red, yellow, and green, multiple light effects including steady on, slow flash, and strobe, and audio file updates through Micro USB.
| Item | Description |
|---|---|
| Product type | Integrated audible and visual alarm, voice plus tri-color beacon |
| Control method | RS485 Modbus RTU for networked control; aligned with the capability framework of switch-input versions |
| Typical applications | Equipment fault alarms, production line status indication, security linkage, fire alarm and building alerts |
| Storage medium | Built-in FLASH, 8 MB by default |
| Audio file update | Supported through Micro USB connection to a PC |
2. Ordering Information
2.1 Model Description
| Model | Description |
|---|---|
| Y121 | RS485 audible and visual alarm with linked voice playback and tri-color beacon control |
2.2 Selection Parameters
| Parameter | Options |
|---|---|
| Power version | DC 9 to 30 V, with 12 to 24 V recommended |
| Mounting method | Screw mounting or magnetic mounting, depending on mechanical version |
| Control version | Modbus RS485 |
| Harness definition | Default A+ / B-, with actual wire color subject to the product shipped |
3. Key Features
| Feature | Description |
|---|---|
| Tri-color beacon | Red, yellow, and green light output |
| Configurable light effects | Steady on, slow flash, strobe flash, and off |
| Voice playback | Supports MP3 playback and track control |
| Group playback | Supports direct playback by folder and file number, with folders 01 to 99 and tracks 001 to 255 |
| Volume control | Adjustable by serial command, typically 0 to 30 levels |
| Parameter retention | Address, baud rate, and related settings are retained after power loss |
| Bus networking | Typically up to 32 nodes on one bus without repeaters, with expansion available through repeaters |
4. Technical Specifications
4.1 Electrical
| Parameter | Specification |
|---|---|
| Rated supply voltage | DC 9 to 30 V |
| Recommended supply | DC 12 to 24 V, current capacity >= 1 A |
| Power consumption | Approx. 5 W at 12 V with an 8 ohm speaker |
| Audio format | MP3, recommended bit rate <= 192 kbps |
| Supported sampling rates | 8 / 11.025 / 12 / 16 / 22.05 / 24 / 32 / 44.1 / 48 kHz |
| Frequency response | 70 Hz to 13 kHz |
| Protection rating | IPX65 |
4.2 Environmental
| Parameter | Specification |
|---|---|
| Operating temperature | -40 °C to +85 °C |
| Operating humidity | 0% to 95% RH, non-condensing |
4.3 Communication Parameters (RS485)
| Parameter | Specification |
|---|---|
| Protocol | Modbus RTU |
| Default address | 0x01 |
| Super address | 0xFF, used for broadcast or wildcard control |
| Default baud rate | 9600 bps |
| Data format | 8N1 |
| Check method | CRC16 for Modbus, low byte first |
| Supported function codes | 0x03 query, 0x06 control |
5. Interface and Wiring
5.1 Terminal Definition (RS485 Version)
| Terminal | Description |
|---|---|
| V+ | Power positive |
| V- | Power negative |
| A+ | RS485 A |
| B- | RS485 B |
5.2 Wiring Recommendations
| Item | Recommendation |
|---|---|
| Bus polarity | Connect A+ to the host A, and B- to the host B |
| Reference ground | A common ground between the host and device is recommended |
| Termination | Add 120 ohm termination resistors at both ends of the RS485 bus |
| Node count | Typically <= 32 devices without repeaters |
| Power | Do not connect AC power and do not reverse the polarity |
6. Installation and Usage Recommendations
| Item | Recommendation |
|---|---|
| Initial commissioning | Start with the default settings of address 1, 9600, 8N1 to verify communication |
| Audio update | Power off first, connect to a PC through Micro USB, then disconnect USB before powering on again |
| File organization | For 0x0F and 0x10, use folders 01 to 99 and file names 001 to 255 |
| File management | Format the storage first, then copy files in playback order to avoid incorrect playback caused by hidden files |
| Pre-deployment validation | Verify four core operations before deployment: play, stop, beacon effect, and status query |
- Manufacturer: Hunan YenGear Tech Co., Ltd.
- Email: [email protected]
- Website: www.yengear.com