PRIMAR
Y LINK
SECONDAR
Y LINK
ETHERNET
DELAY 1
DELAY 2
DELAY 3
POWER
PROTECTION OK
EXTREME VOL
TAGE
ON
OFF
REMOTE
16 AMPS
PUSH T
O RESET
UNSWITCHED ~ 220V
-240V, 50/60Hz
MAX LOAD 10A, 2300 W
ATTS
SEQUENCE
AV equipment is most vulnerable and susceptible
to damage during those first few milliseconds after
the power is turned on or off.
When audio amplifiers are powered, a large inrush
current occurs as the large capacitors in the power
supply charge. This inrush can be on the order of
several hundred amps for a number of AC cycles.
If more than one amplifier is connected to a single
branch circuit, the inrush current is multiplied and
can cause the circuit breaker to trip, or the line volt-
age to sag. Additionally, if the amplifier is powered
either before or concurrent with signal processing
equipment, the result can be a dreaded speaker
“pop”. This all-too familiar noise occurs as tran-
sients from the signal processing equipment flow
uncontrolled to the inputs of the power amplifier.
The amplifier amplifies this signal and passes the
transient “pop” along to the speakers. The result
can be catastrophic to both speaker and amplifier.
Powering down A/V is equally as perilous. Unlike
other A/V equipment, the large capacitors found
in amplifiers will store their charge. This means
if signal processing devices and amplifiers are
switched off simultaneously, the amplifiers are still
operational as the signal processing equipment is
switched off. Just as with startup, the power down
phase can cause equipment to emit transients
which are amplified by the amplifier, then propa-
gated to the speakers and “pop”!
AC Power sequencing addresses these problems
by powering up your equipment in stages. The
signal processing equipment is powered up first
and allowed to stabilize, and then the amplifiers
are powered up. The first stage signal processing
equipment may still emit transient noise upon pow-
er up, but because the amplifiers have yet to power
on, the transient signal passes without incident.
Power sequencing stages the activation of heavy
loads, which prevents nuisance breaker trips and
equipment damage due to line sags and brown-
outs. This means that inrush currents are offset
in time, rather than occurring simultaneously. This
can also be advantageous to upstream equipment
if the sequencer is supplementing other power
management such as a UPS or voltage regulator.
The Furman Contractor CN-3600SE provides three
delay stages. Each stage is independently fused
and protected. If three stages of power sequencing
are not enough for your application, you can chain
together multiple (up to 99) sequencers using Fur-
man’s exclusive SmartSequencing™ technology
for up to 297 independent stages! Please review
the reference materials for CN-3600SE thoroughly,
for a clear understanding of SmartSequencing
1
The box should contain the following items:
1) Contractor Series Quick Start Guide
2) Pair of Security Keys
3) Two removable Cover Shields and four screws
4) Three Phoenix –Type Connectors
Pair of Security Keys
Two Removable Cover Shields and Four Screws
3 Phoenix Type Connectors
(2 four pin, 1 five pin)
At Furman Sound, we have spent the last 30 years
quietly obsessing about AC Power Quality and how
best to protect your professional equipment from
the noise and hazards of AC power. Over the years
we have developed a multitude of technologies
that have spared countless devices from damage
and earned the trust and respect of the Profes-
sional A/V industry. This manual will explain some
of the Furman technologies that have been incor-
porated into the design of the CN-3600SE. If you
are already a Furman customer you are probably
already familiar with our portfolio of protective
technologies. If this is your first Furman Contractor
purchase, we appreciate your business. We have
spared no expense in making sure that your CN-
3600SE will perform admirably. Welcome Aboard!
Before You Begin Inspect Upon Receipt
Why choose Furman?
Why choose AC power sequencing?
CN-3600SE
Introduction
Congratulations and thank you for choosing the
Furman CN-3600SE. We assure you that your
sequencer will provide many years of trouble
free operation. The CN-3600SE is a 230VAC 16
Amp Contractor Grade Surge Protector and Power
Sequencer equipped with Furman’s exclusive
SmartSequencing™ technology. SmartSequenc-
ing™ defines a whole new level of power manage-
ment and control while streamlining installations
from start to finish.
