GAI-Tronics 4512-001 6-Channel Radio User and Installation Manual - Manual (Page 8)

Pub. 42004-387G
Model 4512-001, 4512-001FR, 4514-001, and 4514-001FR 6-Channel Radios Page 6 of 19
f:\standard ioms - current release\42004 instr. manuals\42004-387g.doc
02/15
Wide Range (110/220 V AC/270 V DC) Power Supply PCBA
This switch-mode power supply features high-efficiency operation over an 85–300 V ac or dc input range.
The output is adjustable to provide proper float charging voltage to the optional standby battery.
The Power Supply PCBA provided as standard equipment maintains regulation per a wide range of input
voltages, and in addition to the internal protection, it is further protected from transients on the external
power source by the optional Surge Filter PCBA. The power supply provides regulated 12.5 V dc to the
radio circuits.
Pot 2
The Power Supply PCBA contains a pot adjustment, Pot 2, which is used to adjust the charging current
into the optional standby/emergency battery. Refer to Figure 4 on page 7 for the location of the pot.
Refer to the “Installation” section for instructions for the charging current adjustment.
Surge Filter PCBA
The Surge Filter PCBA provides additional power input filtering for noisy industrial 270 V dc power. It
is standard on the Models 4512-001 and the 4512-001FR only.