TSA-200 / TSA-200XT / TSA-240 / TSA-240XT
© 2010 –
2014 Telefire Fire & Gas Detectors Ltd
Revision 1.06 July 2014
Page 22 of 79
8.2
Power Supply, Charger and Batteries
The TSA-200 product family is powered by a COTS AC powered Power Supply/Charger,
which is located at the top left corner of the enclosure, and provides a nominal 27.8V
output. (This setting provides 27.3V battery charging voltage).
Max PS output current is 1.5A
The PS is electronically protected for Short Circuit/Over Load/Over Voltage. It does not
contain user replaceable components inside
If the PS shuts down during operation, remove overload and re-power to recover.
The maximum battery charging current is 0.3A, electronically controlled and limited. The
max allowed current draw from the batteries (occurs when the mains are disconnected
or are OFF) is 3A, limited by a PTC element.
Type and rating of batteries;
The ECD requires two 12V, 5AH sealed Lead Acid batteries, connected in series. (Use
Yuasa NP 5 -12, or equivalent)
8.3
Front Panel
The front panel, which is part of the door of the ECD box, has several visually and
functionally distinctive areas, as follows:
•
An 8 keys keyboard,
•
A general LEDs area, comprising two columns of 7 LEDs each, where the right
columns is mostly used for indicating the ECD states, and the left column is mostly
used for indicating faults. The bottom two LEDs are dedicated to Password and
Delay/Verify functions
•
Additional Fault indication. Four LEDs are in the leftmost column, below which is the
Extinguishing Zone indication Group, comprising five LEDs.
•
Two Detection Zones Indications, each comprises two LEDs.
•
Special indications, 2 LEDs.
