Simco-Ion scorpION3, User Manual

Page: 27 / 56

scorpION3 5200969 Rev 4 22
The computer interface normally draws power from the scorpION3
bar system via the RJ-11 connectors. However, the computer
interface may serve as the source of power for the bar system.
When using the computer interface to power the bar system, the
user must supply 24 VDC via the plug type terminal block labeled
user interface. Connect pin 1 to ground/return and pin 2 to +24 VDC.
NOTE: Users connecting to the scorpION3 in this fashion must
supply 200 mA per each bar connected plus 100 mA for the
computer interface and 50 mA for a hardwired MMI.
The user interface terminal block on the computer interface also
provides relay contact output for the fault alarm. Pin 4 is Common.
Pin 3 is Normally Closed. Pin 5 is Normally Open. The relay
contacts are rated for a maximum of 1 A at 30 VDC resistive with a
maximum switching voltage of 220 VDC.
The Computer Interface will automatically resolve bar address
conflicts (where more than one bar on a system chain has the same
address number). This feature is required to make the software
function properly. In the event of duplicate bar addresses on a
system chain, the CI will assign the next available address to the
“newest” bar on the chain. Bars that have been on the chain and
have established addresses will not have their addresses changed.
The process of testing and correcting duplicate bar addresses may
take several minutes, therefore when adding a bar to an existing
system that has a Computer Interface, allow the system to run for
approximately two minutes undisturbed.