Connectors/Switches
2x DB-9 Male (Serial)
1x RJ-45 Female (Network)
1x DC Jack (Power)
1x 3-pole Terminal Block
1x Reset Semi-recessed Push-button

LEDs
1x (Green) Power
1x (Yellow Green/Red) Status
2x (Green/Orange) 10/100 Mbps
2x (Green/Orange) Ports 

Power
• Input voltage DC Jack: 9VDC (Power Adapter: 9VDC，100-240VAC 50~60 Hz)
• Terminal Block: 9-48 VDC
• Consumption DC9V:1.18W:6BTU; DC48V:1.30W:6BTU

Interfaces
• Serial RS-232: TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND
• RS-422: Tx+, Tx-, Rx+, Rx-, GND
• RS-485-4w: Tx+, Tx-, Rx+, Rx-, GND
• RS-485-2w: Data+, Data-, GND
• Pull High/Low Resistor for RS-485: 1 kilo-ohm, 150 kilo-ohms
• Baud Rate: 110, 134, 150, 300, 600, 1200, 1800, 2400, 4800, 7200, 9600, 19200, 38400, 57600, 115200, 230400, 460800, 921600 bps
• Data Bits: 5, 6, 7, 8
• Parity: None, Even, Odd, Space, Mark
• Stop Bits: 1, 1.5, 2
• Flow Control: RTS/CTS, DTR/DSR, XON/XOFF

Network
• 10/100 BaseT
• Built-in 1.5 kV Magnetic Isolation Protection

Industrial Protocols
• Ethernet: Modbus TCP Client (Master), Modbus TCP Server (Slave)
• Serial: Modbus RTU/ASCII Master, Modbus RTU/ASCII Slave
• Max. 16 connections under Modbus Master mode and 32 connections under Modbus Slave mode

Compliance
• EMC: EN 55032/35
• EMI: CISPR 32, FCC Part 15B Class A
• EMS
• IEC 61000-4-2 ESD: Contact: 4 kV; Air: 8 kV
• IEC 61000-4-3 RS: 80 MHz to 1 GHz: 3 V/m
• IEC 61000-4-4 EFT: Power: 1 kV; Signal: 0.5 kV
• IEC 61000-4-5 Surge: Power: 2 kV (Power Adapter), 1kV (Terminal Block); Signal: 1 kV
• IEC 61000-4-6 CS: 150 kHz to 10 MHz: 3 V/m; 10 kHz to 30 MHz: 3 to 1 V/m; 30 kHz to 80 MHz: 1 V/m
• IEC 61000-4-8 PFMF
• IEC 61000-4-11 DIPs
• Safety: UL 60950-1 and UL 62368-1 standards compliant
• RoHS

Environmental
• Operating Temperature: 0 - 60°C
• Storage Temperature: -40 - 75°C
• Humidity: 5 ~ 95% RH, Non-condensing

Physical 
• Housing: Metal
• Weight: 0.46 lb (0.21 kg)
• Dimensions (L x W x H): 3.86 x 4.61 x 1.02 in. (9.8 x 11.7 x 2.6 cm)
• Installation: Desktop, Wall Mounting, Din-Rail Mounting, Rack Mounting (with VE-RMK1U - sold separately)