Harrington Signal Tracker T8000 - Install Manual - Manual (Page 11)

D
3
A
B
C
2
HSI #780-0867 FireSpy Tracker Installation Manual
7
The main circuit board contains 4 circuits (3 for MB) that can be individually programmed to operate in the
following modes:
•
NAC (steady, temporal coding, or march time coding, Gentex 1 synchronization for Commander 3
and 4, Gentex 2 synchronization for Commander 1)
•
Auxiliary power supply (resettable or continuous)
•
Auxiliary input
NOTE: UL864 requires audible alarm notification devices to be synchronized on a
circuit or a system basis. If using notification appliances other than Gentex
Commander 1, 3, or 4, synchronization modules must be used.
Table 2-5: NAC specifications (output modes) (MB / MBC / MBCLC)
Parameter Rating
Output voltage 24VDC
Output current, max
MBC / MBCLC
MB
3A
1.8A
Wiring styles (NAC mode) Style Y (Class B)
Style Z (Class A)
End-of-line resistance (NAC mode, Class B) 10k ohm
* See Appendix C Wire Selection for suggested wiring distances.
Table 2-6: NAC specifications (input mode) (MB / MBC / MBCLC)
Parameter Rating
Input voltage (input mode) 24VDC
Input current draw, max (input mode), inherently power limited 5mA
End of line resistance (input mode) 10k
The MB contains an auxiliary input/output circuit that can be used in a NAC mode or as an input. The
NAC mode can be used to activate an external NAC-driven device, such as a NAC power supply or
HAVE voice evacuation system. The AUX IO port provides alarm activation, silencing and resound
operation.
Table 2-7: AUX IO specifications (output mode) (MB)
Parameter Rating
Output voltage 24VDC
Output current, max 0.02A
Wiring styles Style Y (Class B)
End-of-line resistance 10k ohm
Table 2-8: AUX IO NAC specifications (input mode) (MB)
Parameter Rating
Input voltage (input mode) 24VDC
Input current draw, max (input mode), inherently power limited 5mA
End of line resistance (input mode) 10k