**Product Specifications:**
**Brand:** UGREEN
**Model:** VCC Floating Craft Version
**Type:** Industrial Grade, Engineering Grade
**Operating Environment:**
- Industrial Grade: -40°C to 85°C
- Engineering Grade: -25°C to 70°C
**Features:**
- Passive converter for RS232/RS485 bidirectional conversion
- Supports various control systems for long-distance transmission
- Built-in transient voltage protection for secure signal transmission
- High and low-temperature resistance (-40°C to 85°C)
- Quick transient voltage suppression protector for data safety
- 600W surge protection per line to prevent damage from surges
- Static electricity protection and corrosion resistance
- High-speed logic processing chip for no-delay data transmission
**Connectivity:**
- RS-232 Input Signal and Pin Description
- Pin 1: Protective Ground
- Pin 2: Transmit Data (TXD)
- Pin 3: Receive Data (RXD)
- Pin 4: Data Terminal Ready (DTR)
- Pin 5: Signal Ground (GND)
- Pin 9: Data Set Ready (DSR)
- Pin 7: Request to Send (RTS)
- Pin 8: Clear to Send (CTS)
- Ring Indicator (RI)
- RS-485 Output Signal and Terminal Description
- T/R+: RS-485 (A+)
- T/R-: RS-485 (B-)
- GND: Ground
- VCC: +5V Power Input
**Communication Connection Diagrams:**
- RS-232 to RS-485 Conversion
1. RS-485 Point-to-Point/Two-Wire Half-Duplex
2. RS-485 Point-to-Multipoint/Two-Wire Half-Duplex
3. Half-Duplex Communication Connection between CM261 Interface Converters
**Package Contents:** UGREEN RS-232 to RS-485 Converter (Enhanced Version) with stable and surge protection features
*Note: The above specifications are based on laboratory tests conducted by UGREEN.*
