Cisco VCO/4K Mechanical Assemblies page 67

RJ-21X I/O Module
The PCB I/O module is connected to the rear faceplate via a 96-pin ribbon cable. The faceplate
is the width of three standard card slots and mounts on the rear of the VCO/4K system.
Figure 5 shows the faceplate.
RJ21X
J2
To J1
Figure 5: RJ-21X I/O Module Faceplate with Ribbon Cable
I/O Modules 1-7