The Remote I/O Head dual channel modules are installed in the same backplane as the system controlling CPU modules. The RIO head is used to transfer data bi-directionally between the CPU and RIO drop modules installed in separate backplanes. A coaxial cable network is used to interconnect the RIO head module and one or more RIO drop modules.
The following figure shows the Remote I/O (RIO) module’s parts.
1
LED Area
2
RIO Coax Connector (Channel A)
3
RIO Coax Connector (Channel B)
4
Version Label
5
Model Number, Module Description, Color Code
6
Removable Door
7
Customer Identification Label (Fold label and place it inside door)
NOTE: To mantain CE compliance with the European Directive on EMC (89/336/EEC), the RIO head module must be connected using quad shielded cable (see the Remote I/O Cable System Planning and Installation Guide).
