ATEN CS17916, User Manual, Page: 33 / 86

2. Hardware Setup
23
Three Stage Cascade
The procedures for setting up a three stage installation are essentially the same
as for a two stage installation. Using the CS1798 in a three stage setup, as many
as 512 computers can be controlled in a complete installation. A table showing
the relation between the number of computers and the number of switches
needed to control them is provided on page 71.
Note: 1. The CS1798 cannot cascaded beyond the third level and the CS17916
cannot cascaded beyond the second level.
2. The CS1798 can only be cascaded with other CS1798 units. The
CS17916 (set as the First Stage unit) can cascade with the CS1798 or
CS17916.
Once you have finished cabling up (see Two Stage Cascade , page 21 if
necessary), power up according to the following sequence:
1. For each Third Stage unit, plug the power adapter cable into the switch's
Power Jack; plug the power adapter into an AC source.
2. For each Second Stage unit, plug the power adapter cable into the switch's
Power Jack; plug the power adapter into an AC source.
3. Plug the First Stage unit's power adapter cable into its Power Jack, then
plug the power adapter into an AC source.
4. Turn on the power to all the computers.
Note: 1. The Power On sequence requires that all Second Stage units be
powered on first. After the second stage units are on, power on all
the First Stage units. After the Second and First stage units have
been powered on, the computers can be powered on.
2. The USB 2.0 hub cannot be accessed through the switch by
computers on the second or third level of a cascaded installation.