Expands from 8 to 32 ports per board （max. 4 boards, 128 ports per system）
Dual on-board RISC-based processors
Display panel on connection module provides working status of each port
Available with desktop connection module
PCL-747+/232 Multiport High SpeedRS-232 Controller
PCL-747+/422 Multiport High SpeedRS-422 Controller
R 16Port Rackmount RS-232High Speed Controller
R-16E Extensive 16-Port RS-232 Module/Rackmount
OPT-8E+/232 8-Port RS-232 ExtendingUart Module
OPT-8E+/422 8-Port RS-422 ExtendingUart Module
OPT-8E+/422I Isolated 8-Port RS-422Extending Uart Module