Ampac EvacU, Technical Manual

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Page 31
EWCIE Technical Manual
10.4 Power Supply Specifications
The Standalone EWCIE can use three different power supplies depending on the number and size of
the amplifiers installed.
3 Amp 5 Amp 10 Amp
Mains Input 204 – 264Vac 110-240Vac 110-240Vac
Mains Protection/Fuse 2 Amp M205
T3.15 A 20mm, 250V ac
HRC T4.0 A 20mm, 250V ac
HRC
Cable Requirements >0.75mm²
Voltage Output (Mains) 25-29Vdc 27.0 – 28.3V dc 27.0 – 28.3V dc
Battery Standby 20.3 – 26.0V dc 20.3 – 26.0V dc
Ripple Voltage <100mV <100mV <100mV
Imax A 3 Amp 5 Amp 10 Amp
Protection/Fuse Current Limiting F5.0 A F10.0 A
Battery Size 2 x 7 or 12 Ah 12V 2 x 12 or 18 Ah 12V 2 x 18 Ah 12V
Charge Current 600 mA 850 mA 700 mA
Battery Low 23.5V 23V 23V
Notes** **Battery Box Required
10.4.1 3 Amp PSU
CHASSIS EARTH
TERMINAL
+BATT-
CAUTION:
FOR CONTINUED PROTECTION
AGAINST RISK OF FIRE REPLACE
ONLY WITH SAME TYPE 2A FUSE
O
F
F
O
N
METAL
COVER
DC OUTPUT
ETH+27V 0V
1
1
2
6
8
4
3
5
7
(AC IN)
CN5 TO THERMISTOR
EXTENSIONS OF PIN 1
(TEMPSENSE RTN) AND PIN 6
(TEMPSENSE) OF RJ45
CN2: RJ45 PINOUT CONNECTIONS
1.TEMP SENSE RTN
2.SUPPLY SENSE
3.PSU V ADJ
4.CHARGER ON
5.LOAD ON
6.TEMPSENSE
7.BATTERY V SENSE
8.OV
CABLED TO THE
MAIN BOARD
Battery 2
12Volts
Battery 1
12 Volts
+
-
-
+
2
PROTECTIVE PERSPEX
COVER
HIGH VOLTAGE PRESENT
INDICATOR UNDER CAGE
COMBINED MAINS SWITCH
& MAINS INDICATION
NEUTRAL (BLUE)
EARTH (GREEN)
ACTIVE (BROWN)
NOTE: MAINS CABLE
SHOULD BE NO LESS
THAN 0.75mm
1 2 3
CN5
CN2
TB2
TB1
SW1
F1: 2A Fuse
27V TO THE MAIN CARD
(3 WAY PANDUIT)
A
LED
AC ON
DC ON
LED
DANGER
N
MAINS CABLE
Figure 13: 3 Amp PSU shown