Black Box KV3000 User Manual download pdf (Page 30)

CHAPTER 3: Installation

• You must not cascade submasters to more than one “layer.” That is, you may

connect submasters to the CPU ports of one or (with Matrix ServSwitch

submasters) two master ServSwitches, but do not connect any submasters to

submasters’ CPU ports. To illustrate this restriction, let’s say you’ve installed a

four-port submaster on a four-port ServSwitch master and you have a four-port

submaster yet to install. You must install the second submaster on the master’s

CPU 2 port, not on the first submaster’s CPU 1 port. A third submaster would

have to go on the master’s CPU 3 port, a fourth on the CPU 4 port. If it

becomes necessary to attach more CPUs after “maxing out” on submasters, you

must upgrade your master or submasters.

• If you are attaching more than one submaster to a slimline or full-size master

ServSwitch, we strongly recommend that all of the submasters have the same

number of ports. This is because the Switch’s Width command/parameter—

the value it uses to calculate how many ports each attached submaster has (see

Section 4.3.9)—is global rather than submaster-specific. In other words, a master

ServSwitch always expects every submaster attached to it to have the number of

ports specified in Width.

For example, if you attach one 8-port submaster and one 12-port submaster

to a master ServSwitch, and then set Width to 8 (and Units to 2 and Max Ports

to 20—see Sections 4.3.8 and 4.3.10), you will be unable to scan or switch to

the upper 4 ports on the 12-port submaster—the Switch has no way of knowing

they are even there. On the other hand, if you set Width to 12 (and Units to 2

and Max Ports to 24), your system will include 4 “phantom” ports (nonexistent

ports 9 through 12 on the 8-port submaster) that the master will think are

there and will try to scan or switch to, displaying a blank screen.

When you’re ready to begin hooking up the actual units, follow these steps:

1. If this hasn’t already been done, connect the monitor(s), keyboard(s), and

mouse (mice) to the MONITOR/KEYBOARD/MOUSE port(s) of your

master device(s) as outlined in Section 3.2.2.

2. Use ServSwitch to ServSwitch Expansion Cables (see Section 3.2.4) to connect

all your submaster units to the master unit’s CPU ports, beginning with the

port labeled CPU 1 and continuing with CPU 2, CPU 3, etc. (Avoid installing

submasters with different numbers of CPU ports on the same master; if

possible, every Serv unit in your cascade should have the same number of

ports.)

3. Using CPU Adapter Cables, attach your computers to available CPU ports: the

first computer into the port identified as CPU 1, CPU #2 into its port, etc. (see

Section 3.2.3). The computers should all be OFF; do not turn them ON yet.

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Black Box KV3000 User Manual Page 30