Serial

Extend the distance between PC and RS232 Equipment
Straight through network cable
RS232 serial port boost up to 1.2 km
Baud rate range: 300 - 200kbps
Supply voltage: DC9-24V (not included )
Optical isolation
isolation voltage: 2500Vrms pulse or 500 V = continuous
Dimensions: 100 mm x 50 mm x 20 mm
Weight: 350 g

Supports Baud Rate conversion
Supports Modbus RTU/ASCII protocol
Supports two masters sharing one slave port
Raw data mode for most query-response protocols
Built-in web server for easy configuration (HTTP)
Redundant power inputs: PoE (IEEE 802.3af, Class 1) and DC jack
Allows automatic RS-485 direction control
Tiny form-factor and low power consumption
Read-cache ensures faster response

Wireless Com Port - Can Peer-to-Peer connection
IEEE 802.11 a/b/g/n
2.4 GHz, 5 GHz Dual Band
1 Port RS232 or RS422 or 2-wire RS485
Max.Baud Rate: 921.6 Kbps
Operating temperature: -40 - +85°C
with COM Port Re-Director, TestView
± 15KV IEC ESD protection
Supply voltage: 5 - 12VDC / 2W
infrastructure, Soft AP, Roaming
sWifi config Mobile App for Android

Transparent Wireless RS232 or RS485 link with 2 pcs.
Programmable with DIP- and Rotary switches
433 MHz Radio Frequency
16 RF Channels
0dBi Omni antenna
Baud Rates from 1200 to 115200 bps
Includes a PA switch that can be used to enhance the RF power
Wireless line of sight (LOS) transmission range of up to 500 meters at an RF Baud Rate of 9600 bps
RS232 (RX/TX/GND) and RS485 (2-wire) interfaces
N81, E81, O81
DIN-Rail
Temperatures, -25 - +75°C
TX power: 10dBm to 19dBm
Supply: 10 - 30VDC / 1Watt
Dim: 107 x 83 x 33 mm

DB9 male connector
1200 to 230400 baud
Supply 5 to 24 volts via USB or screw terminals
Detachable WiFi antenna
USB Adapter cable included

Freqency 433MHz
Transmitting power 37dBm
Receiving sensitivity -130 dBm
Distance up to 20km
Interface RS232/RS485
2 devices needed for single transparent transmission
Baud rate: 1200~115200, default: 9600
Power input: 8-24VDC
Operating temperature: -40  to 85℃

Single-Mode Fiber (Multi-Mode optional)
1-Channel Duplex Rs485
Point-to-Point or Daisy-Chain (M485-FIBER-ST is needed)
DC input 5V (< 3W)
Operating tempeture: -45 C~+75 C
Up to to 115.2Kbps data rate

Single-Mode Fiber (Multi-Mode optional)
1-Channel Duplex Rs485
Point-to-Point or Daisy-Chain (M485-FIBER-SR is needed)
DC input 5V (< 3W)
Operating tempeture: -45 C~+75 C
Up to to 115.2Kbps data rate

Easy to use
DIP switch for disconnecting and connecting signal (easy to connect external cables/props)
Branch too high signal
Red for low signal
RS232 8 signals DCD, RXD, TXD,, DTR, DSR, RTS, CTS, RI.