Black Box KV6104SA-R2, Manual

Page: 31 / 98

30
SERVSWITCH™ DUO AND SERVSWITCH™ QUADRO
Figure 3-6. A sophisticated cascaded Quadro system with two
Both masters have users on all four user ports. Only two users on either master at a time can access the
CPUs on a given subsidiary.
Even though it might seem that you could run additional extension cabling from the masters’ CPU ports
to user ports #1 and #3 on each subsidiary at their site, allowing all four users on each master to reach
CPUs on those subsidiaries at the same time, this wouldn’t work. Cascaded systems with links that run
through both the local and remote connectors of the same user port on a subsidiary
don’t function
properly.
For clarity, all sets of cables are shown in this illustration as single lines.
Duo Extenders on
groups 25 and 26
(CPU ports 9
through 12)
CAT5 cables
Site 1
Extension cabling
on groups 21 and
22 (CPU ports 1
through 4)
Extension
cabling
Master
Quadro #1
(cascade
layer 1)
CPUs
CPUs
Subsidiary
Quadros
(cascade
layer 2)
Local users on
all user ports