HU-PYXIS
26
PYXIS
System User Guide
4.2.5.3 Reset
The 2449 base card has a reset button on the front edge, which performs exactly the same function
as the reset button on the 2445 sub board.
Under normal conditions it will cause the processor to re-boot; a process that takes only a few
seconds, normally it will NOT lose the system database or change any crosspoint settings. However
if the system has just had a slave controller plugged in the database will be mid transfer and could be
corrupted on both cards (see section 4.1 for details)
If CONFIG SWITCH 6 on the 2445 card is set to ‘AUTO’, a reset will also force the control module to
interrogate all the cards in the frame and update its configuration information. This means it is
important to perform a reset whenever the system size has been increased or decreased.
After a reset with the correct module configuration it is advisable to set CONFIG SWITCH 6 to
MANUAL, avoiding over-writing the configuration should any modules be removed or added
temporarily.
4.2.5.4
Rotary Hex Switches
The bank of 8 Rotary Hex switches on the front of the 2449 controller is not used on in the Pyxis
system and should all be set to 0.
4.2.5.5 DIP
Switches
The bank of three four-way DIP switches on the front of the 2449 is not used in the Pyxis system and
should all be set to off.
4.2.5.6
Setting Master/Slave jumpers
Figure 17: 2449 Controller: Master/Slave Settings
The
5
jumpers
PL1 to 5 must be set to match the MASTER/SLAVE setting on the 2445 Nebula Card.
In a dual controller system, one module must be configured as ‘Master’ and one as ‘Slave’. See