Brooks Firetracker FT420, Техническое руководство

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Technical Manual
FT420
– Iss 2.4
16
The Main Control Board manages the bus operations. The system configuration data stored on the
Main Control Board must match the type and address of each expansion board correctly.
If any configuration data error is detected, the CIE will signal a system fault and force all the expansion
boards into inactive condition. This will deactivate all outputs that are non-energised and return all
inputs to its deactivated state.
2.1.5 Display Driver Board Expansion Buses
There are two sets of expansion bus circuits on the Main Display Driver Board (SUB881), LEFT bus
and RIGHT bus. Up to 5 Expansion Generic Display Driver boards (SUB891) can be daisy-chain
connected to each bus of the Main Display Driver Board. Similarly, on each Generic Display Driver
Board (SUB891), refer to Figure 9 on page 30, there are two bus connections (CON1 & CON2) and
one bus address setting jumper on each Generic Display Driver Board. IDC 16-Way Ribbon Cables
are used for these bus interconnections.
Each SUB891 board should be set with a unique address by a jumper link. Refer to Table 18 page 30
for jumper setting. The bus address setting is determined by the shunted status the IDC 2X5 jumper
(JP1).
There are no Bus Directional Controls for the Expansion Display Driver Boards. The top bus connector
will always be for incoming bus while the bottom connector is for out-going bus to the next Expansion
Display Driver Board below it.
The Main Display Driver Board manages the Display Board Expansion Bus. The system configuration
data stored on the Main Display Driver Board should match the type and address of each expansion
display board correctly.
Should any configuration data corruption or bus error be detected, the CIE will signal a systems fault.
The related controls and indications will be kept in their de-activated states.
2.1.6 Jumper Settings
There are two main types of jumper settings in the CIE, the Expansion Bus jumper settings and the
Control Output jumper settings.
The Expansion Bus jumper settings shall match the allocated bus addresses and directions. The
Expansion Bus jumper settings shall be recorded correctly in the related forms in Section 6.2
Appendix B Equipment Record, page 74.
Warning: The control output jumper settings should be carefully set. Incorrect jumper settings may
cause short circuits of the system power outputs.