Specifications
MEGAPOWER CPU 8200-0421-01, REV. E
INSTALLATION AND SERVICE GUIDE
3 of 34
Indicators, Settings, and Connections
Rx Tx
Front Panel (left to right)
1
Heart Beat
Upon power up or reset, blinks once for
ROM and RAM test completion (stays lit
and operation halts if either test fails).
Otherwise, blinks steadily to show
processor is operating.
2
Broken Heart
Blinks once upon power up or reset. Then
only blinks when a fault occurs (along with
a beep). An error code displayed by the
Message Center indicates the fault.
3 Message
Center
Displays MPCPU error codes and the
following symbols:
FULL BEATING HEART = MPU is
communicating
• BROKEN HEART = MPU not
communicating
• NONE = no MPU in a hot switch setup
is communicating.
or
or NONE
• UP arrow = the selected unit in a hot
switch set up.
• DOWN arrow = the backup unit, if used.
or
• CLEAR circle = normal operation.
• DARK circle = a fault in the MPCPU.
or
• CIRCULAR arrow = MPCPU with
ribbon cable connected to itself.
• OPPOSING arrows = two MPCPUs hot
switched together.
• NONE = CPUs are not communicating.
or or NONE
• Rx/Tx levels (show data activity). Bars
= maximum levels reached.
Rx T
x
4 Network
Indicators
Indicates activity on the network.
• GREEN solid (Ethernet connectivity) or
flashing (Ethernet activity)
• AMBER ON (Ethernet 100Base-T) or
OFF (Ethernet 10Base-T)
5
Power Reset
Switch
Recessed button is used to reset the
MPCPU. Use a paper clip to press.
6
RS-232
COM Port
Module
Select
LEDs blink to show the COM ports
selected by a slide switch on the rear
panel: 1–16 or 17–32.
Note: If two units are hot switched
together, do not set both to the same
COM ports.
7
Recessed button is used to select the
CPU that drives a dual unit hot switch
setup.
The message center displays the up
arrow to indicate the selected CPU.
8
RS-232
COM Port
Activity
LEDs show activity of COM ports 1–16 or
COM ports 17–32.
9
Data Line
Activity
Indicates data sent on the AD data lines
selected by a slide switch on the rear
panel: AD1–2 or AD3–4.
Front
1
2 3 4 7 9
5
8
MPU Module Port Module
6