I-9114i/9144i module is provided functions for installation of the RS-232/422/485communication module driver on the WP-9000, XP-9000, LX-9000 or LP-9000 programmable automation controllers (PACs).

The I-9114i provides 4 isolated RS-232 serial ports and The I-9144i provides 4 isolated RS-422/485 serial ports. They are equipped with a 128-byte hardware FIFO for each port and offers speeds up to 115.2 kbps with support for RS-232/422 full-duplex communication.
 

In the harsh industrial environment, the onboard ESD protection devices can divert this potentially damaging charge away from sensitive circuitry and protect the I-9114i/9144i from permanent damage.

The serial communication modules are designed for use with intelligent devices like bar code readers, serial printers, intelligent sensors, instrumentation equipment, computers, and almost any device with an RS-232/422/485 port.

For more information, please refer to the product websites:
https://www.icpdas.com/en/product/guide+Remote__I_O__Module__and__Unit+PAC__I_O__Modules+I-9K_I-97K__Series