RS232 and RS485, What are the differences between them?
StarTech.com 3m RS232 Serial Null Modem Cable, Crossover Serial Cable w/Al-Mylar Shielding, DB9 Serial COM Port Cable Female to Male, F/M | OfficeSupply.com
3DeMoN Autonomous Laser Distance Meter | Smartec
OEM Industrial Laser Range Finder Module , RS232 B605B Laser Distance Meter Module
RS232 to RS485 Converter Robotics Bangladesh
RS232 Serial Port: 7 Facts You Need to Know before Using