Hardware reference guide

Networking
238
35013379 11/2011
140CRP93X00 Remote I/O (RIO) Head Single and Dual Channel Module
Overview
The Remote I/O Head Single and 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.
RIO Head Module
The following figure shows the Remote I/O (RIO) module’s parts. The specific
module illustrated is the 140CRP93200.
Specifications
The following table shows the specifications for the Remote I/O Head Single and
Dual Channel modules.
Specifications
Drop Type Quantum, 200 Series, 500 Series, 800 Series, or SY/MAX (any mix)
Drops 31 max
Words/Drop 64 In / 64 Out
ASCII 2 ports/drop, 32 ports (16 drops) max
Requires the use of AS-P892-000, AS-J892-101/102, or
AS-J290-0X0 at the RIO drops.