SMARTZONE UPS USER MANUAL
16
Power ON Button
The UPS has a single push button switch to the right of the display. This push button
switch is used to cold start the UPS.
UPS Rear Panel
The rear panel varies based on the UPS unit model. Refer to the UPS Physical Feature
call out tables and the Model specific figures in the section for details.
Intelligent Slot (INTELLIGENT SLOT)
Each UPS unit is standardly equipped with a Network management Card. Alternatively,
the UPS may be ordered with an empty Intelligent Slot, and later updated with a UPS
Network Management Card or a UPS Relay Card.
EPO/REPO Signal Port (EPO/REPO)
The 5-10kVA single-phase UPS units come equipped with an Emergency Power Off
signal port, labeled EPO. These UPS units come equipped with a 2-pin plug wired to
provide a short that results in normal UPS operation.
CAUTION
: If the plug or shorting wire is removed, the UPS system will be
commanded to shut down. In typical applications, the plug will be wired to a remote
normally closed dry contact to provide a short for normal operation. The remote dry
contact could be opened to command the UPS to shut down in an emergency.
The 10-20kVA 3-phase UPS units come equipped with a Remote Emergency Power Off
signal port, labeled REPO. These UPS units come equipped with a 4-pin plug wired to
provide a short on pins 3 and 4 that results in normal UPS operation. This plug could be
wired for a remote normally open REPO device or for a remote normally closed REPO
device.
CAUTION
: If the plug or default shorting wire is removed, the UPS system will be
commanded to shut down. In typical applications, the plug will be wired to a remote
normally closed dry contact to pins 3 and 4, to provide a short for normal operation or
wired for a remote normally opened dry contact to pins 1 and 2 (requires shorting wire
between pins 3 and 4). A remote normally open or normally closed dry contact could be
used to command the UPS to shut down in an emergency. Refer to
DB9 Coms Port (RS232)
All units have a DB9 equipped with an RS232 serial communications port. This serial
