SERVSWITCH™ MULTI
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7.2 Features and Benefits
•Liquid crystal display. The Hub has a front-panel LCD for easy configuration and identification. You can
see system-connection information, check the hardware and firmware revisions of your modules, or
troubleshoot system errors, all from an easy-to-use set of screens.
•Front-panel LEDs. LEDs on the Hub ’s front panel let you monitor system power and error status at a
glance. The green Power LED will remain continuously lit while the Hub is receiving AC power from either
of its power supplies. The red Fail LED blinks when a problem is detected, then becomes solidly lit when
the problem is acknowledged. The LED will remain lit until the problem is resolved, or begin blinking
again if a new problem is discovered.
•Flash upgrade capability.The Hub’s Modules, including the Front-Panel Element that controls the
components mounted on its front panel, are Flash-upgradable. Flash-memory technology allows you to
upgrade the Modules’ firmware without removing Modules or powering down the system. New firmware
revisions can be uploaded into the Modules through serial connections to other ServSwitch Multi models in
your system (see Section 8.13).
•Hot-swappable components. The power supplies, fan assemblies, and the Transmit/Receive Modules in the
Hub are all hot swappable. You can remove or replace these components without powering down the
system or the attached servers, so maintenance can be performed at any time without interrupting system
users.
7.3 Installing the Hub
Take these steps to install a ServSwitch Multi Hub:
1. First—before you do anything else—plan your layout. You’ll want to connect each of the two ports on each
of the CAT5 Transmit and Receive Cards in your ServSwitch Multi system to one of the ports on a Hub’s
Receive or Transmit Module respectively. Refer to the sample layouts in Section 7.7. If you still have any
questions, please call Black Box Technical Support. (We strongly encourage you to call Black Box Tech
Support anyway, to discuss your application, before you perform any large or complex ServSwitch Multi
installation.)
2. When you have your physical installation planned out, install the Hub’s fan assemblies and power supplies
in its chassis (these are shipped uninstalled to minimize the risk of them being damaged in transit):
a. Make sure that the power supplies are not connected to any AC outlet and that their power switches are
in the “OFF” position.
b. Gently slide the power supplies into their mounting brackets on the left side of the Hub. (It doesn’t
matter which supply you put in which bracket.)
c. Connect a power cord to the IEC 320 inlet on each of the power supplies. Plug the other end of each
power cord into a working AC outlet. Switch on both of the power supplies and verify that the fan
modules work—the fans should start running right away.