StarTech Serial DB9 RS232 Extender over Cat5 - Up to 1000 Meters - Serial Port Extension - up to 1 km (RS232EXTC1EU) - RS232EXTC1EU

StarTech.com Serial DB9 RS232 Extender over Cat 5 - Up to 3300 ft (1000 meters). Host interface: VGA, Output interface: Serial, Serial interface type: RS-232. Product colour: Silver. Power supply type: DC. Width: 65 mm, Depth: 92 mm, Height: 22 mm. Package width: 57 mm, Package depth: 315 mm, Package height: 138 mm

https://se.startech.com/product/RS232EXTC1EU

Extend an RS232 serial connection up to 1000 meters (3300 feet) using Cat 5 cabling
The RS232EXTC1EU Serial over Cat 5 Extender allows you to increase the distance of your RS232 Serial connection by up to 1000 meters (3300 feet), giving you the ability to connect serial peripheral devices up to a kilometer away from your system - an incredible 65x greater than normal RS232 serial cable length restrictions would permit. The Serial Extender is a cost-effective serial extension solution and entirely hardware-based, eliminating the need to install additional software, allowing for a completely plug and play installation. The hardware can be setup in minutes, using existing or new Cat 5 or better Ethernet cabling. Perfect for use in industrial monitoring and control, POS, security, medical, and traffic flow applications, the RS232 Serial over Cat 5 extender maintains the RS232 standard with support for data transfer rates of up to 230 Kbps. Backed by a StarTech.com 2-year warranty and free lifetime technical support.
The StarTech.com Advantage
- Provides you with flexibility when choosing the location of your serial peripherals by dramatically increasing the maximum RS232 serial cable length
- Pure hardware design, no software or drivers required ensuring a simple plug and play installation
- Enables use of separate control rooms away from harsh environmental conditions where serial devices may be located