Overview:
Altronix PM212 supervised linear power supply/charger converts a low voltage AC input to a filtered and regu-
lated 12VDC, 1A continuous power-limited output.
Specifications:
Installation Instructions:
1. Mount PM212 in the desired location/enclosure (mounting hardware included).
2. Connect proper transformer (16VAC, 20VA) to the terminals marked [AC].
3. Measure output voltage before connecting devices. This helps avoiding potential damage.
4. Connect devices to be powered to the terminals marked [– DC +], carefully observing polarity.
5. When the use of stand-by batteries is desired, they must be lead acid or gel type.
Connect battery to the terminals marked [– BAT +] on the unit (battery leads included).
Note: When batteries are not used, a loss of AC will result in the loss of output voltage.
6. Connect appropriate signaling notification devices to AC Fail & Low battery supervisory relay output
terminals marked [N.C., C, N.O.].
Note: During normal operation (AC and battery connected), the N.C. and C relay contacts will be in
the closed position and the N.O. and C relay contacts will be in the open position.
These contacts are rated at 2A, 120VAC/28VDC.
LED Diagnostics:
Red (DC)
Green (AC)
Power Supply Status
ON
ON
Normal operating condition.
ON
OFF
Loss of AC. Stand-by battery supplying power.
OFF
ON
No DC output. Short circuit or thermal overload condition.
OFF
OFF
No DC output. Loss of AC. Discharged or no battery present.
Terminal Identification:
Terminal Legend
Function/Description
AC / AC
Low voltage AC input (16VAC / 20VA min.). Altronix part # TP1620.
– DC +
12VDC @ 1A continuous power-limited output.
AC FAIL
N.C., C, N.O.
Used to notify loss of AC power, e.g. connect to audible device or alarm panel.
Relay normally energized when AC power is present.
Contact rating 2A @ 120VAC / 28VDC.
Low Battery
N.C., C, N.O.
Used to indicate low battery condition, e.g. connect to alarm panel.
Relay normally energized when DC power is present.
Contact rating 2A @ 120VAC / 28VDC.
– BAT +
Stand-by battery connections. Maximum charge rate 200mA.
PM212
Supervised Linear Power Supply/Charger
Input:
• 16VAC/20VA.
Output:
• 12VDC output.
• 1A continuous supply current.
• Filtered and electronically regulated output.
• Thermal and short circuit protection with auto reset.
Battery Backup:
• Built-in charger for sealed lead acid or
gel type batteries.
• Automatic switchover to stand-by battery
when AC Fails.
Battery Backup
(cont’d)
:
• PTC battery protection.
Supervision:
• AC fail supervision (form “C” contacts).
• Low battery supervision (form “C” contacts).
Additional Features:
• AC input and DC output LED indicators.
• Includes battery leads.
Board Dimensions
(W x L x H approximate)
:
2.75” x 5.25” x 1.5” (69.9mm x 133.4mm x 38.1mm).
