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7
Key Concepts
Simple versus
smart signaling:
Table 3
The communication between an APC UPS and a connected
server can be of two types: simple signaling or smart signal-
ing. This table provides information that distinguishes the
two types.
Continued on next page
Item
Communication Types
Simple Signaling Smart Signaling
UPS mon-
itorin
g
features
–On Batter
y
si
g
nal
–Low Batter
y
si
g
nal
–On Batter
y
si
g
nal
–Low Batter
y
si
g
nal
–Continuous advanced
monitorin
g
visible in
PowerChute
plus
g
ra
p
hs
Software
used
PowerChute
(or PowerChute
plus
confi
g
ured for sim
p
le
si
g
nalin
g
)
PowerChute
plus
confi
g
ured for smart si
g
-
nalin
g
Port t
yp
e Basic Advanced or Basic
UPS
models
su
pp
orted
–Back-UPS
–Smart-UPS
†
–Matrix-UPS
–S
y
mmetra
PowerArray
† See “Hardware and software requirements,” on pa
g
e 3
for a listin
g
of APC UPSs that do not support simple
si
g
nalin
g
with the Interface Expander.
–Smart-UPS,
–Matrix-UPS, and
–S
y
mmetra
PowerArray
Communi-
cation
cables
Cables in the interface
kit associated with each
OS. See “Choosin
g
cables: Table 1” on
p
a
g
e
4.
Cable su
pp
lied with
PowerChute
plus
Table 3: Simple versus smart signaling