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Mounting the Keypads
Using a Supplementary Power Supply to Power Additional Keypads
1. Make sure keypads are set to non-addressable mode (address 31), which
is the factory default setting. Refer to the instructions provided with the
keypad for address setting procedure.
2. Mount the keypads at a height that is convenient for the user. Refer to
the instructions provided with the keypad for mounting procedure.
You can either surface mount or flush mount keypads (using an
appropriate Trim Ring Kit: FA550TRK (except FA210KP). Refer to the
mounting instructions and template included with the keypad and/or trim
ring kit for specific information.
The control provides 500mA for powering keypads (up to a maximum of 4 )
and other devices from the auxiliary power output. The backup battery will
supply power to these keypads in the event that AC power is lost.
When the control's auxiliary power load for all devices exceeds 500mA, you
can power additional keypads from a regulated, 12VDC power supply (e.g.,
487-12 supplies 12V, 250mA; 488-12 supplies 12V, 500mA). Use a UL Listed,
battery-backed supply for UL installations.
The 487-12/488-12 power supplies have a backup battery which can power
these keypads in the event of AC power loss.
Keypads powered from supplies which do not have a backup battery will not
function when AC power is lost. Therefore, be sure to power at least one
keypad from the Control's auxiliary power output.
Connect the additional keypads as shown in Figure 6, using the keypad wire
colors shown. Be sure to observe the current ratings for the power supply
used.
Make connections directly to the screw terminals as shown in Figure 6. Make
no connection to the keypad blue wire (if present).
Be sure to connect the negative (–) terminal on the Power Supply unit to
terminal 4 (AUX – ) on the control.
SUPPLEMENTARY
POWER SUPPLY
–
+
Figure 6. Using A Supplementary Power Supply For Keypads
– 17 –
CONTROL
TERMINAL STRIP
AUX AUX. DATA DATA
–
+
4
5
IMPORTANT:
MAKE THESE
CONNECTIONS
DIRECTLY TO
SCREW TERMINALS
AS SHOWN.
IN
OUT
6
7
- Quick Links:
- Keypads that May be Used
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Table of Contents
Troubleshooting
Need help?
Do you have a question about the FA142C and is the answer not in the manual?
Questions and answers
Why there is no siren output all of sudden
The First Alert FA142C may have no siren output due to the following possible causes:
1. Power Issues – The alarm sounder requires a 12V, 2.0 Amp output. If the power supply is interrupted or the backup battery is depleted, the siren may not function.
2. Blown Fuse – The system has a 3A battery fuse (No. 90–12). If this fuse is blown, it could prevent the siren from operating.
3. Wiring Issues – Incorrect or loose wiring connections to the siren or control panel may cause a lack of output.
4. System Programming – If alarm outputs are not correctly programmed or disabled in the system settings, the siren may not activate.
5. Overloaded Power Output – The auxiliary power output and alarm sounder should not exceed 600mA total for UL installations. If overloaded, the system may shut down the siren output.
Checking these factors can help identify and resolve the issue.
This answer is automatically generated