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3.2.1 PRECHARGE: A button to press and hold for 5 seconds before turn on BATTERY circuit breaker
every time for safety. The capacitor will first charge in order to protect surge or spark when urn on
BATTERY circuit breaker.
3.2.2 MAINTENANCE MANUAL BYPASS SWITCH (option) : The switch to switch power source from AC utility
power to BYPASS power source for maintenance.
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NORMAL/AUTO: Select this position to tranfer loads to consume the protected power from UPS.
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BYPASS: Select this position to transfer loads to consume power from bypass power source when
the UPS need to maintenance.
3.2.3 RS232-PC: The port for connecting RS-232 cable from UPS to computer to send and receive electricity
data with Easy-Mon X (download Easy-Mon X at www.leonics.com).
3.2.4 REMOTE TERMINAL (option): The port to send and receive remote signal to display the operation of
the UPS via remote display or website.
3.2.5 REMOTE STATUS INTERFACE (option) : The terminal for sending remote contact signal; normally open
(NO), normally close (NC) and common (COM) to display the operating status of the UPS. The
descriptions of each signal pin are as follow.
3.2.5.1 DI1: Reserved.
3.2.5.2 DI1: Reserved.
3.2.5.3 GROUND: ground of digital input signal.
3.2.5.4 COMMON: COMMON pin of the contact signal.
3.2.5.5 K1 (NO, NC): UPS Normal / Fault (NO and NC contacts of K1 relay).
3.2.5.6 K2 (NO, NC): Loads are protected. (NO and NC contacts of K2 relay).
3.2.5.7 K3 (NO): Run on battery signal (NO contact of K3 relay).
3.2.5.8 K4 (NO): Bypass signal (NO contact of K4 relay).
3.2.5.9 K5 (NO): Low battery signal (NO contact of K5 relay).
3.2.5.10 K6 (NO): Overload signal (NO contact of K6 relay).
3.2.5.11 K7 (NO, NC): Alarm signal (NO and NC contacts of K7 relay).
3.2.6 SNMP AGENT (option): The socket for connecting computer network LAN cable to view electricity
data and UPS status via SNMP/HTTP (Read more details in Net Agent manual).
3.2.7 AC INPUT: The cable for connecting to AC outlet or AC power source (specific models only).
3.2.8 INPUT FUSE: The component for protecting from overload or short circuit current at the UPS input.
3.2.9 OUTPUT FUSE: The component for protecting loads from overload or short circuit current at the UPS
output (specific models only).
3.2.10 UPS OUTPUT: The socket to supply protect backup power to loads (specific models only).
3.2.11 INPUT circuit breaker: The circuit breaker for protecting from overload or short circuit current at the
main AC power source.
3.2.12 BYPASS INPUT circuit breaker (option): The circuit breaker for protecting from overload or short circuit
current at bypass power source.
3.2.13 OUTPUT circuit breaker (option): The circuit breaker for protecting loads from overload or short circuit
current at the UPS output.
3.2.14 BATTERY circuit breaker: The circuit breaker for protecting from overload or short circuit current at the
battery system.
3.2.15 INPUT terminal: The terminal for connecting input power from main AC power source to the UPS.
3.2.16 BYPASS INPUT terminal: The terminal for connecting input power from bypass power source to the
UPS.
3.2.17 PE/EARTH terminal (
) : The terminal for connecting to ground system.
3.2.18 OUTPUT terminal: The terminal for connecting to loads.
3.2.19 BATTERY EXTENSION terminal(option): The terminal for connecting to external battery bank to
extend backup time.
