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CHAPTER 5: Configuration
5.4 KVM/Serial Systems Only: Setting the Remote Units’ Data-Rate Jumper
There’s also a daughtercard inside the KVM/Serial Extender Local Hubs
(ACU1006SRA and ACU1006DSRA) for each of the Local Hub’s CPU ports, and a
matching daughtercard in each KVM/Serial Remote Unit (ACUSREM), that
together control serial communication with each attached CPU. (This card is
shown in Figure 5-2.) In the Remote Unit, this daughtercard has a pair of jumper
posts labeled “Baud” that control the data rate of the serial link. In their factory-
default state, there is no jumper linking these two posts; in this setting, the data
rate is 9600 bps. If you want the link to operate at 19,200 bps instead, install a
jumper on these posts.
CAUTION!
Do
not
change the settings of any of the jumpers or headers on these
daughtercards except for this data-rate jumper and the flow-control
jumpers discussed in the next section.
NOTE
It is possible to set a KVM/Serial Extender system to operate at 1200 bps
in order to support
some
of the devices that run at this speed, including
some industrial trackballs. See
Appendix C
.
Figure 5-2. The serial daughtercard and its controls.
Flow-Control Jumpers
Data-Rate Jumper (“Baud”)
Содержание SERVSWITCH ACU1006DRA
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