The PCL-1050 series consists of a set of convenient wiring accessoires designed for use with I/O cards such as PCL-711, PCL-812PG and PCL-720+. With this set, field wiring becomes much easier. The set includes the following items: PCL-10501 adapter, analog I/O channels to DB37 connector PCL-10502 digital I/O port extender with ribbon cables PCL-10503 adapter, dual flat cables to DB37 connector.