The Lonbox PFG4000 Users Guide - Prolon

Lonbox® PFG4000 Users Guide Page 8 / 19 . Prolon Control Systems The DB9 connector is a standard RS232 serial connector. The cable connected between a PC and the PFG4000 should be a so called null modem cable including hardware handshake lines. The pin layout on the following figure is seen from the outside of the Lonbox® PFG4000

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