






Automatic

Fail-Over Switch







User’s Guide


Product Features
Standard Package Contents

Congratulations on selecting the DLI Automatic Transfer
Switch, a smart dual-input AC failover switch.

Features include:

Easy toUse

Simply connect inputs and outputs. No settings are required.


Full Microprocessor Control

The internal microprocessor automatically handles brown-out,

blackout, wiring fault detection, and loss of power detection.

Fast Switching


Switching is fast and fully automatic. Switching typically

occurs in less than 10ms (.01s)

4 Switched, L-15 outlets


Four switched outlets are provided, fed by two 7’ length

14Ga L-15 power cords.




LCD and RS-232 Serial Status Display

Status of the switch may be monitored on the LCD display

or remotely via the RS-232 output port.


1500ms+ Holdover Time

The switch will typically operate for up to 2 seconds after

complete loss of power on both input


2 1SMART FAILOVER SWITCH


1. Smart Transfer Switch
2. Registration Card & Manual
Please contact the shipping carrier immediately if your
package appears opened or damaged in transit. Call DLI
at (408) 330-5599 for tech support, service, firmware and
hardware upgrades.
Compatible Attached Equipment
Any AC load may be connected. Inductive and powerfactor-corrected loads will not adversely affect operation of
the switch. Total rated load current is 12A.
Installation
Connect the input cords to any two AC power supplies. For
example, you may connect a UPS and a Grid power source
to ensure that attached equipment will continue to run in the
event of a UPS failure.
Operation
Operation is fully automatic. When the primary (preferred)
input power supply fails, loads will quickly be switched to
the backup power source. After primary power is restored
and stable for a minimum of 5 seconds, loads will be
switched back to the primary power source. Status is
displayed on the LCD

www.digital-loggers.com
SMART FAILOVER SWITCH 3
rS-232 Port
Specifications
The DTE RS-232 port operates at 9600, N,8,1 in
output-only mode. Status is sent periodically.
Alert Beeper............................. 68dBa at 12"
Applications.............................. Datacenter servers
Telecom
UPS + Grid redundancy
Circuit Breakers........................ Manual reset, 15A Thermal, UL
Display...................................... 2x16 Backlit LCD w/ PowerSave
Dimensions............................... RETMA 1-U compliant
Outside 1.75x4.5x17"
19" between tips of rack ears
Enclosure................................. Steel chassis, double grounded.
No plastic.
Vented 4 sides. Fanless.
Environment............................. Indoor use only.
FCC Testing.............................. Part 15 S/D
Humidity.................................... 8-80% RH Operating
Input Power Cords.................... UL CSA L-15 7 foot length
Input and Outlet Rating............ UL, CSA 12A 120VAC
Input Frequency....................... 50-60Hz Only
Operating Temperature............. -30o to 170oF, -34o to 77oC
Options - OEM ......................... Custom firmware
Power Supply Rating................ 70-140VAC
Survives spikes to 160V
Outlet Specicifcation................. UL/CSA L-15 Standard
Outlet Switching....................... SIngle switched circuit
Output Current.......................... 12A
Power Dissipation..................... 3.1W Max
Power Fail Hold-Over............... 1500 ms min, 2500 ms typ
Relay Contact Spec.................. 20A NO AC 277V
Serial Port................................. 9600 baud, N, 8,
1 status output only
Surge Protection....................... 2X 580J 25,000A MOV
Size (Single-Pack Carton)........ 5.5x8.2x20.8"
Switching Times
Power-Up Primary ON......... 3 seconds
Primary-Fail to Secondary.... 9-15ms
Secondary Lockout.............. 5 seconds
Switch back to Primary......... 9-15ms
Weight...................................... Single unit 6.2 lbs
Packed out 7.4lbs
Technical Support
Please register your product. A quick on-line
registration gets you free technical support and allows
us to inform you when updates and new features
become available. Registering gives you access to
mail-in firmware updates. To save time, please have a
look at the product FAQ page solutions. You may FAX
questions to (408) 970-3491 or email: support@digitalloggers.com. For phone support, call (408) 330-5599
with the following so we can better serve you:
• The firmware version displayed when the switch is
powered up.
• A description of the inputs and the loads attached.
Frequently Asked Questions
A list of FAQs is maintained at:
www.digital-loggers.com/ATSFAQs.html
We Appreciate Your Feedback
At DLI, we listen to customers. Please send
suggestions to engineering@digital-loggers.com.
Since we’re constantly adding and changing features,
specifications are subject to change without notice.
4 1SMART FAILOVER SWITCH
www.digital-loggers.com
SMART FAILOVER SWITCH 5
. ..
. .
imited Five Year Warranty
. Warranty
.
Limited One-Year
.
.
Limited
Five may
Year
The terms
of this warranty
be Warranty
legally binding. If you do not agree to the
The terms of this warranty may be legally binding. If you do not agree
to the terms listed below, return the product immediately in original
erms listed
below,condition
returnforthe
product
immediately
in original
unopened
unopened
a full
refund. The
purchaser assumes
the entire
ondition for
a
full
refund.
The
purchaser
assumes
the
entire
risk
to the
risk
as
to
the
results
and
performance
of
the
unit.
DLI
warrants
this
The terms of this warranty may be legally binding. If you do notasagree
to the
esults and
performance
unit.
DLI
warrants
this
powercountry,
to be
power
controller
toof
bethe
free
fromthe
major
defects.
No
agency,
or unopened
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return
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incontroller
original
certifications
are
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this
unit. Itassumes
isorthelocal
responsibility
ee from local
major
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No
agency,
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certifications
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The
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the
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if
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ncluded with
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It
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results and performance of the unit. DLI warrants this power
controller
to be
application. DLI’s entire liability and exclusive remedy as to defective
freeif from
defects.
country,
or local certifications
ertifications
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necessary
forNo
theagency,
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DLI’s entire are
hardware shall be, at DLI’s option, either (a) return of the purchase price
included
with remedy
this unit.as
It is the
responsibility
of the userbe,
to obtain such
ability and
exclusive
hardware
or (b)
replacement
or repair ofto
thedefective
hardware that
does notshall
meet DLI’s at DLI’s
certifications
if
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DLI’s entire
ption, either
(a)
return
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quality control standards and has been returned through proper RMArepair
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WARRANTY
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DLI’s
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INTENDED.
No warranty
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NOT INCLUDE
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HARDWARE
No warranty
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ONLY.UPGRADES.
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DOES
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an RMA
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This warranty
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numbers
arehandling,
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foror15
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DLI’s
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Physical
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ansit to scope
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No
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anyDLI’s
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assumesor
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liability for incidental
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the scope
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DLI
noto warranty
or consequential
damages
from the
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or inability
use this as to
way increase the scope of this warranty. DLI makes no warranty as to
product.orThis
warranty
givesparticular
you specific
legal rights.
may alsono
have
merchantability
fitness
for any
purpose.
DLIYou
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no liability
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to state.
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the exclusion of liability for consequential damages, some of the above
se this product.
This
warranty
gives you
specific
legal rights.
You You
maymay
alsoalso
use
this
product.
This
warranty
gives
you
specific
legal
rights.
limitations may not apply to you.
.
.
ave otherhave
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that
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SinceSince
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allow the exclusion
liability
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of above
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apply
mitationslimitations
may not apply
to
you. to you.
DIGITAL
LOGGERS, INC.
2695
Walsh
AveINC.INC.
DIGITAL
LOGGERS,
DIGITAL
LOGGERS,
2695Avenue
Walsh
Avenue
2695
Walsh
Santa
Clara,
CA 95051
SantaCA
Clara,
CA 95051
Santa Clara,
95051
T 408.330.5599
FAX (408) 541-8459
FAX (408)
541-8459
www.digital-loggers.com
F 408.970.3491
SUPPORT@DIGITAL-LOGGERS.COM
SUPPORT@DIGITAL-LOGGERS.COM
www.digital-loggers.com
support@digital-loggers.com
© 2011 DLI This product
is protected by pending US patents and foreign patents
© 2011 DLI This product is protected
pending
US July
patents
and foreign patents
Releaseby
1.5.0
Updated
28, 2011
© 2001-2012 DLI US
and Foreign1.5.0
PatentsUpdated
Pending. Release
Release
July1.6.7
28,Wednesday,
2011 November 28, 2012.
16
6 1SMART FAILOVER SWITCH 16
www.digital-loggers.com
ETHERNET POWER CONTROLLER III
ETHERNET POWER CONTROLLER III
SMART FAILOVER SWITCH 7
Download a Manual
Frequently Asked Questions
Register Online for:
• Free Tech Support
• Free Upgrades
2695 Walsh Avenue, Santa Clara, CA 95051
Tel: (408) 330-5599, Fax: (408) 541-8459
www.digital-loggers.com