Functions Of Processor Cluster Configuration Control Panel Row - Xerox 550 Reference Manual

Table 25. Functions of Processor Cluster Configuration Control Panel Row
Label
POWER
NNORM
POWER
ON
SYSTEM
SEL
CLOCK
SEL
PROCESSOR
ADDRESS
BP
ENABLE
MIOP
ENABLE
010
ENABLE
ALTSEL
FSELA
FSELBO/FSELB1
Switch/Indicator
1 indicator
1 switch
1 switch
1 switch
3 switches
1 switch
1 switch
1 switch
1 switch
1 switch
2 switches
152 Configuration Control Panel (CCP)
Function
Lighted when unit power is shut down due to abnormal operational
condition.
When in up or middle position, enables power-on control in the
unit power supply. (Middle position inhibits the unit reset signal.)
When in down position, power to unit is off.
Selects the processor bus to which the processor cluster is to be
connected (up is processor bus A, down is B).
SeleGts the clock source (up, A or down, B) for the unit clock
subsystem.
Establishes the logical address of the cluster within a group of
processor clusters.
Note: The 5-bit chassis location number and not the proce'ssor
address is used in addressing the configuration switches for
a given unit by the RD instruction directed to the Con-
figuration Control Panel.
When in down position, inhibits the BP from operating on the
internal bus.
When in down position, inhibits the MIOP from operating on the
internal bus.
When in down position, inhibits external
010
interface.
Selects either the remote console (down position) or alternate
operator's console (up position) to enter data on the Remote
Channel Interface.
Selects communications frequency for the primary operator's
console as follows:
up = same frequency as remote channel
down
=
1200 baud
Note: The 1200 baud selection is effective only if the REMOTE
CHANNEL switch on the System Control Panel is not in
the SCC posi ti on.
Selects communications frequency for the alternate operator's
console and the Remote Diagnostic Interface (Remote Channel) as
follows:
BO B1 Rate (baud)
-
-
0
0
110
0 1 1200
1
0 unspecified
1
1 300