I just worked on something similar. A customer wanted an 820S 1+1 with in-band management from ETH1 with POE. To make this work we had to enable LACP for the ETH1 logical interface. The switchover works fine for user data, but management can take some time to recover when going through our network depending on how fast ARP tables get updated. When I connected my laptop directly to the switch, management does recover quickly.
The text says in-band management and no fiber, but the picture appears to show out-of-band management.
One way to accomplish this would be to connect the units with a crossover cable and use PoE to power the units. This requires the least number of surge supressors (since surge suppression is built-in if you're using ETH1 and PoE.)
Are there other tradeoffs?
(Yes. What are they?)
Are there other things we could add to this picture to make it more useful to an installer (or someone who'll use it for "as-built" documentation)?
Ha! I'd hoped that some other members would reply to this post. Everyone's waiting for the answers.
:)
I'd suggest labeling the ports on the diagram. They are PWR, ETH1/PoE, ETH2, ETH3, and MNG.
If this is a tall tower, it would be nice to have a backup (just in case something happens to the in-band management).
Therefore, I'd run four Ethernet cables up the tower. Two cables to ETH1/PoE with power (so I don't need to add surge suppression on this line), and two cables to MNG (with surge suppression). At the base of the tower (preferably inside the telecommunications shack), I'd use PoE injectors for ETH1/PoE cables, and I'd use splitter cables and connect them with a crossover cable. Putting the splitter cables and crossover cables at the bottom reduces the complexity of the install at the top of the tower.