The FR-2053TA has 16-channel isolated Sink/Source input, while the FR-2057TW has 16-channel isolated sink output. The FR-2000 I/O module has an FRnet interface. The users can daisy chain several FR-2000 modules together. Via FRnet, the FR-2000 modules can extend the remote I/O control of PC, PAC and PLC easily. Further information about the networking of FR-2053TA/2057TW; refer to literature related to I-7188EF, I-8172, FRB-100/200/200U.