36
SERVSWITCH™ AFFINITY
3.4 Daisychaining ServSwitch Affinity Units
Chaining multiple ServSwitch Affinity units together adds capacity for more
computers and, optionally, more user stations. When you plan a daisychained
system, keep in mind that Affinity units attach to each other:
• From output to input.
• In a bus, split bus, or ring topology (see
Section 3.4.3
).
• With between one and four (4-User models), eight (8-User model), or sixteen
(16-User model) cables.
Each Affinity
must
have its “starting computer” configuration parameter set
correctly before you attach it to other units. See
Section 3.6
for how to do this.
3.4.1 E
XPANSION
C
ABLING
You’ll use Expansion Cables to interconnect ServSwitch Affinity units. These cables,
all exactly alike except for their connectors and lengths, carry computer and KVM
signals from one unit’s Expansion Card output ports to another unit’s input ports.
Each Expansion Card must be installed in the top slot (slot 5) of a 4- or 8-User
Affinity chassis, or the top and bottom slots (slots 5 and 6) of a 16-User chassis.
On 4-Port Expansion Cards (those for 4-User Affinity models), the input and
output ports are DB15 connectors numbered
from right to left
with the numerals 1
and 2, as shown in Figure 3-2. The Expansion Cables for these cards (product
codes KV140010 etc.) have DB15 connectors.
On 8-Port Expansion Cards (those for 8-User and 16-User Affinity models), the
input and output ports are HD15 connectors numbered
from left to right
with the
numerals 1 through 4, as shown in Figure 3-3. The Expansion Cables for these
cards (product codes KV180010 etc.) have HD15 connectors.
The maximum distance that Expansion Cable can be run between any two Affinity
units is 100 ft. (30.5 m). See
Appendix B
for cable and Extender product codes.
Figure 3-2. The 4-Port Expansion Card and its input and output ports.
Figure 3-3. The 8-Port Expansion Card and its input and output ports.
OUT 2
IN 2
IN 1
OUT 1
OUT 2
IN 2
OUT 1
IN 1
OUT 4
IN 4
OUT 3
IN 3