Black Box ServManager SW995A-R2, Руководство пользователя

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CHAPTER 3: Installation
3.3 Cascading in ServManager Systems
In a normal cascaded ServManager system, the shared monitor(s), keyboard(s),
and mouse (mice) are directly attached to one or more “master” ServManagers,
while all the CPUs are indirectly attached through “submasters” (other Serv-
Managers, Matrix ServSwitches, original ServSwitches, etc.) that provide port
expansion but may or may not perform any control functions of their own.
When you cascade in this way, you can expand your system to include up to
256 ports (sixteen 16-port submasters on a 16-port master unit).
CAUTION!
If you use any ServSwitch or Matrix ServSwitch units as submasters, do
not attach any CPUs to them that are not IBM PC compatible; these CPUs
must output VGA video and must support either PS/2 or serial mice. All
of the CPUs attached to any submaster must support the same type of
keyboard and mouse.
Submasters can be added to your ServManager system as you need them. For
each submaster you add to the system, you add as many ports as are on that
submaster, minus one port on each ServManager “above” it that’s now
occupied. Refer to Figure 3-2 on the next page:
• Connecting one 4-port submaster to a 4-port master ServManager (top
view) gives you a total of 7 ports: 4 on the submaster and another 3
(4 minus the one that the submaster is attached to) on the master.
• Connecting four 4-port submasters to a 4-port master ServManager
(bottom view) gives you a total of 16 ports, 4 on each submaster. (All 4
ports on the master are now occupied.)
When you use Matrix ServSwitches as submasters, the setup is a little more
complicated. Refer to Figure 3-3 on page 25: Connecting two 4-port Matrix
ServSwitch submasters to a 4-port ServManager gives you a total of 10 ports on
that ServManager. (Each of the ServManagers in Figure 3-3 can access 10
ports, but CPU 9 and CPU 10 on either ServManager can only be accessed by
the monitor, keyboard, and mouse on that ServManager.) Adding a third
4-port submaster unit gives you a total of 13 ports, and so on.
3.3.1 C
ABLE
R
EQUIREMENTS FOR
E
XPANSION
To connect submaster units to a ServManager, you’ll need one ServSwitch-to-
ServSwitch Expansion Cable for each submaster unit. You will also need a
CPU Adapter Cable for each CPU you will be connecting to the submaster’s
CPU ports. (Remember that one MKM Adapter Cable is required to connect
the ServManager to your keyboard, monitor, and mouse.) See
Sections 3.2.2
through 3.2.4 .