Varec TankGate Interface 8315 Series, Installation & Operation Manual, Page: 19 / 120

9
8300 Hardware
+15 and -15 Volts. These are rated 210 mA, 50 mA, and 5 mA, respectively. The DC
Power terminal block is shown below:
Figure 2-6: DC Input voltage terminal block
2.2.1.5 AC Power Fuses (F1,F2)
The AC Power Fuses provide protection for the AC input power. The two fuses, F1 and
F2, are rated at 500 mA, 250 V.
Figure 2-7: AC Power Fuse
2.2.1.6 Field Voltage Selection Jumper (W3)
The Field Voltage Selection Jumper W3 determines the voltage available at the VFIELD
terminals (J3). The Field Voltage can be configured for +24 VDC or +48VDC. At +24VDC,
EARTH
NEUTRAL
LINE
SURGE GND
A/TXD
B/RXD
GND
RTS
CTS
TXD
RXD
GND
+15V
+5V
GND
-15V
+
-
VFIELD
COM1
COM 0
AUX POWER
VFIELD=48V
VFIELD=24V
RESET
RS232
RS485
COM1
HARDWARE HANDSHAKING
A B
CTS
TXD
RXD
GND
+15V
+5V
GND
-15V
COM 0
AUX POWER
J8
J7
EARTH
NEUTRAL
LINE
SURGE GND
A/TXD
B/RXD
GND
RTS
CTS
TXD
RXD
GND
+15V
+5V
GND
-15V
+
-
VFIELD
COM1
COM 0
AUX POWER
VFIELD=48V
VFIELD=24V
RESET
RS232
RS485
COM1
HARDWARE HANDSHAKING
A
B
F1
F2