www.pulsar.pl
R812T
RACK POWER
3
1. Technical description.
1.1. General description.
The R812T power supply unit is designed for uninterrupted power supply of up to 8 analog cameras
requiring stabilized voltage of 12V DC with the total current efficiency of 8A. The output voltage adjustment range is
adjusted via a potentiometer within the range of 12V÷15V DC. The PSU is fitted with 8 outputs protected
independently with melting fuse 1,5A. The power supply is fitted with the ALARM output of collective failure. In
case of failure, relay contacts are switched automatically, which is accompanied by acoustic and optical indication
(the corresponding led goes on). The power supply construction is based on the switch mode PSU with high
energy efficiency and is located in an enclosure adapted for mounting in standard RACK 19” cabinets.
1.2. Block diagram.
Fig.1. The block diagram of the PSU.
1.3. Description of PSU components and connectors.
Table 1. Components of the front panel of the power supply.
Element no.
[Fig. 2]
Description
AC OK – green LED, indicating the presence of 230V voltage
DC OK – green LED, indicating the presence of DC voltage
TEMP – red LED, indicating too high temperature of the power supply (>70°C)
Green LED AUX1 ÷ AUX8 – voltage indication at the outputs AUX
LED ALARM – red LED failure indication
AUX1 ÷ AUX8 – independently protected outputs
ALARM – technical output of collective failure – relay
Potentiometer, output voltage adjustment within the range of 12V÷15V DC
BUZZER, micro switch, turning ON / OFF of acoustic indication
switch in the top position, indication ON
switch in the down position, indication OFF
230V AC INPUT, power socket 230V AC, power cable 1,5m included
F
MAINS
, fuse in the supply circuit 230V AC, T 3,15A/250V
F1 ÷ F8, melting fuses in the camera power supply circuits AUX (+), F1,5A
