Specifications

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SERVSWITCH™ AFFINITY
3.3.7 C ONNECTING
O THER A FFINITY U NITS (O PTIONAL )
To connect one or more other ServSwitch Affinity units together, all of the chassis
must have Expansion Cards installed. You’ll need to run ServSwitch Affinity
Expansion Cables (see Appendix B for product codes) between the Expansion
Cards, always from the IN ports of one card to the OUT ports of other cards (never
IN to IN or OUT to OUT). Where your users are will determine how you lay out
your daisychained system, connect your cabling, and—on 8-User models—number
your user ports; see Section 3.4 for more detailed information. (Just remember
that IN and OUT refer to video-signal flow, so for a user station to display a CPU’s
video, Expansion Cables must lead from OUT on the CPU’s Affinity to IN on the
user’s Affinity.) W
e recommend that you configure and check each Affinity in the
chain either before or as you install it, rather than installing everything and then
working on the entire chain; see Section 3.6. Before installing an advanced
configuration, please call Black Box and discuss your application with a technician.
3.3.8 P OWERING U P THE A FFINITY U NITS
1. Making sure that the connected CPUs are OFF (powered down)—except for
at least one CPU in an all Sun installation where the monitor doesn’t support
640 x 480 (see step 5 in Section 3.3.5)—take the power cord(s) of a ServSwitch
Affinity in your system and plug each cord’s IEC 320 female outlet end into a
rear-mounted IEC 320 male power inlet on the Affinity. Then plug the other
end of the cord(s) into a working outlet. If your CPUs are on uninterruptible
power supplies (UPSes), the Affinity units should be on UPSes as well.
2. Move the ON/OFF rocker switch on the back of the Affinity from the OFF
(“O”) position to the ON (“|”) position to power up the unit. (In the
aforementioned all Sun installation, make sure that the operating Sun CPU is
selected; it should be, by default, if it’s connected to the Affinity’s lowest-
numbered CPU port.) The Affinity should briefly display a diagnostic screen
(at the resolution of the video output of any selected CPU, or at 640 x 480 if
no CPU is selected) on all attached monitors. For a description of this screen,
the possible diagnostic messages you could see, and the procedure for
powering up your CPUs, see Section 3.5.
If the unit is operating properly, after the diagnostic screen fades away you
can do initial configuration for that Affinity as described in Section 3.6.
Dual-Powered Affinity models: After the Affinity powers up, check the LEDs on its
front panel. All three should be lit. If not, make sure both cords are securely
attached and that the AC outlets they’re plugged into are working. If one of the
power supplies has in fact failed, see Section 9.2 for how to proceed.