I want to connect a PanelView 550 (2711-K5A2) from the DH485 port of a 5/03 to the DH485 of the PV, what comms cable would I need? I need to use the RS232 port of the 5/03 for an EZmarquee. I've looked around but couldn't find a definite answer. Thanks for any help.
John
John