Altronix AL842ULADA Installation Instructions - Manual (Page 5)

AL842ULADA - 5 -
Terminal Identification Table:
AL842LGK - Logic Board
Terminal Legend Function/Description
IN1+, IN1-
IN2+, IN2-
(Supervised)
These terminals connect to the24VDC FACP notification appliance circuit outputs. (Class A,
Style Z or Class B, Style W, Y) Input trigger voltage is 8-33VDC @ 5mA min. Terminal polar-
ity is shown in alarm condition. During an alarm condition these inputs will cause the selected
outputs chosen to drive notification appliances. The designated outputs are set by output switches
[OUT1 through OUT4] (Output Programming Selection Table, pg. 4). A troubl condition on an
output loop will cause the corresponding input to trip the FACP by opening the FACP loop. An
alarm condition will always override trouble to drive notification appliances.
RET1+, RET1-
RET2+, RET2-
(Supervised)
For Class A, Style Z hookups these terminal pairs return to FACP NAC1 and/or NAC2.
For Class B, Style W, Y hookups the FACP EOL resistor from the NAC1 and/or NAC2 outputs
are terminated at these terminals. Optionally, other notification appliances or additional signaling
circuit power supplies may be connected to these terminals. If this option is chosen the EOL
resistor must be terminated at the last device.
C “DRY1” NC
C “DRY2” NC
(Dry input trigger)
An open across these inputs, will cause the selected outputs chosen to drive notification appli-
ances. The designated outputs are set by output switches [OUT1 through OUT4] (Output
Programming Selection Table, pg. 4). Note these inputs are unidirectional and will not report a
trouble condition to the FACP.
+ OUT1 --
+ OUT2 --
+ OUT3 --
+ OUT4 --
(Supervised)
Notification appliances are connected to these regulated outputs (see Application Guide, pgs.
2-4). Each power limited output will supply 2 amp. Total supply current is 8 amp (see note
below). Outputs are controlled by designated input 1 [IN1] or input 2 [IN2] (Output Programming
Selection Table, pg. 4). Maximum line loss or voltage drop (tested with 2.5V).
+ Loop 1 --
+ Loop 2 --
+ Loop 3 --
+ Loop 4 --
Used for Class A, Style Z hook-ups to terminate loops originating on
[OUT1], [OUT2], [OUT3], and [OUT4] respectively.
C “FAULT” NC
(Common
trouble input)
An open circuit across this pair of terminals will cause [INP1 and INP2] LEDs to simultaneously
signal a trouble condition back to the FACP (Typically used to report AC or BAT Fail).
(Fig. 2e, pg. 7).
NC, C, NO
(Common
trouble output)
These are dry contact trouble outputs that report any general loop/system trouble conditions.
(Typically used to trigger a digital communicator or other reporting devices).
(form “C” contact 1 amp / 28VDC 0.35 Power Factor) (Fig. 2, pg. 7).
-- AUX+
This separate 1 amp max. auxiliary special application power output circuit is typically used
to power electromagnetic door holders that keep fire and smoke doors open under
normal conditions.
-- AUX2 +
This separate auxiliary regulated power output circuit supplies up to 1 amp during stand-by and
alarm condition to auxiliary special application power output circuit is typically used to power
4-wire smoke detectors. See attached list of devices (Appendix A, pgs. 10-12). Since this output is
not disconnected from its load during AC power failure use the (Battery Calculation Worksheet,
pg. 9) to determine battery size and/or allowable stand-by and alarm current.
+ DC -- 24VDC from power supply.
Note: Unit is equipped with two (2) 1 amp max. auxiliary outputs: “AUX1” will automatically disconnect when AC
is lost. “AUX2” will remain battery backed up during the power outage. For loads connected to “AUX2” please
refer to battery “Stand-by Specifications” above for ratings. When loads are connected to the “AUX1” and/or
“AUX2” outputs during alarm condition, the remaining outputs may not exceed 8 amp total alarm current.
(example: AUX1 = 1 amp, AUX2 = 1 amp, outputs up to 7 amp).