Sourced and supplied by Al Imran Enterprises, Lahore, Pakistan. The Pro-face CA4-ADPONL-01 is a conversion adapter that adapts the COM2 serial port of compatible Pro-face operator interfaces for RS-422/485 communication networks. On many installed HMI panels the COM2 port is shared between programming access at commissioning time and runtime communication with PLCs, inverters and other controllers; this adapter provides the correct pin-out conversion and line termination so field wiring lands cleanly on its terminal block instead of being re-pinned or soldered onto the interface connector itself. Pro-face, the human-machine-interface specialist within the Schneider Electric group, supplies the adapter as an ordered accessory under order codes #CA4ADPONL01 and #PFXZC4ADCM1, so panels built anywhere in the world can be serviced back to the original specification. In Pakistani plants we see this small accessory unblock surprisingly large jobs. When an HMI fails, maintenance teams often discover that the original conversion adapter was discarded with the old unit, damaged along with the panel loom, or simply misplaced over years of service. Without it the replacement display cannot talk to the network it was designed for, and an entire production line waits on one small plastic adapter. Al Imran Enterprises keeps commonly requested Pro-face accessories moving to sugar mills, cement plants, textile mills, food and beverage factories and OEM panel builders across Pakistan, consolidating them with the larger drive, PLC and sensor items on the same shopping list so one shipment closes the whole job. Every adapter we dispatch is checked against the order code printed on the housing so you receive the exact conversion your panel documentation calls for, not a look-alike. If you are unsure which adapter suits your HMI model, send us the nameplate photo and our team will confirm compatibility before quoting. Contact us for pricing, lead times, and technical compatibility checks.