12
3-Level Installation (Cascading)
The procedures for setting up a three stage installation are essentially the same as for a two
stage installation. With a three stage setup, as many as 512 computers can be controlled in
a complete installation.
Note: Switches cannot be cascaded beyond the third level.
Once you have finished cabling up (see Two Stage Installation, page 11 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: The Power On sequence requires that all Third Stage units be powered on first. After
they are all on, the Second Stage units must be powered on next. After all the Second
Stage units are on, the First Stage unit must be powered on. Only after all the switches
have been powered on in this sequence, can the computers be powered on.
