User manual

Chapter 2. Installation
19
The table below lists the KVM switches that are compatible with the KM0832.
Cascading
Another way of adding capacity is to cascade additional KVM switches from
the KM0832's CPU Ports. The KM0832 supports up to three levels of
cascading. However, unlike daisy chaining, cascading does not increase the
number of consoles that can be used to control the computers.
In a cascaded installation, the first KVM switch is considered the first stage
station; cascaded switches are considered second and third stage stations.
Protocol Interface Cascading
Protocol Interface Cascading refers to cascading from a parent KVM switch to
a child switch, where both switches uses the same data transfer protocol. In this
type of cascade, the On Screen Displays (OSD) belonging to the separate
switches are integrated so that when the consoles of the first stage switch
invoke the OSD, all computers on the cascaded KVM installation are listed in
the port directory.
The KM0832 can cascade up to three levels of KM0832 stations through
Protocol Interface Cascading. It supports a maximum of 8,192 computers.
The maximum number of consoles on the first stage KM0832 that can
simultaneously access computers attached to the cascaded KM0832 switches
is dependent on the number of bus connections between each parent and child
switch. A bus connection is established by connecting a CPU Port of the parent
switch to a User Port of the child switch. The KM0832 supports a maximum of
eight bus connections between parent and child switches.
In order for all eight consoles on the first stage KM0832 switch to
simultaneously access the cascaded second and third stage switches, each
parent KM0832 must make eight bus connections with each child switch that
is cascaded from its ports. In other words, eight CPU Ports of the parent switch
must be connected to eight User Ports of the child switch.
Note: Consoles in cascaded child stations cannot access ports in parent
stations.
Expansion Type Brand Model Number Name
Cascade Altusen KM0832 8 Console 32 Port Matrix KVM Switch
Daisy Chain Altusen KM0432 4 Console 32 Port Matrix KVM Switch