Dell 4161DS - Manual (Page 23)

Installation 23
Figure 2-7. Remote Console Switch Cascading Configuration With Legacy Console Switches
Adding a PEM (Optional)
A Port Expansion Module (PEM) allows you to expand each ARI port to accommodate up to
eight devices instead of one.
NOTE: The PEM operates passively. Therefore, once a user accesses a device attached to a PEM, any
subsequent users attempting to access any of the devices attached to that PEM will be blocked.
To add a PEM (optional):
1
Mount the PEM into your rack. Using up to nine CAT 5 cables, one connects your Remote
Console Switch unit to the PEM, and the other eight connect the PEM to the SIP
attached to each device.