Digital Loggers 32-Port DC User manual

USER’S GUIDE
32-Port DC Smart Switch

32-Port DC Smart Switch digital-loggers.com
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Product Features
Congratulations on selecting this smart, web enabled DC power
switch. Features include:
Simple Web Interface
The internal web server is accessible from any browser. Simply
enter an IP. Conguration and control are web-based. A RESTful
API is provided in addition to traditional HTTP controls.
AutoPing™ Reboot
AutoPing continuously monitors an IP address. If a server, router,
radio or other peripheral goes down, AutoPing can automatically
reboot it without user intervention. AutoPing can monitor several
devices and multiple IPs simultaneously.
Dual 50A inputs, 32 Switched DC 3A Outputs
Two input busses A&B are provided with separate 50A input
breakers. Outputs 1-16 are powered from bus A. Ouputs 17-32
are powered from bus B. On each output, a self-restetting PTC
protects against overcurrent.
Programmable LCD Display & Keypad
A 2x16 LCD displays status for each outlet. Custom messages
can be displayed via user scripts A keypad adds local control.
Multi-User Password Security
Multi-user authentication limits access. The administrator selects
which relays each user can control.
Sequenced “On Timer”
A programmable delay timer switches circuits on in sequence,
rather than simultaneously. Most devices draw a surge of power
when initially switched on. Using this timer, more equipment
can share a single circuit without overloads due to startup surge
current. Lua scripts can be used to create customized power-up
and shut-down sequences with variable timing.

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MOV Surge Suppression
32 metal oxide varistors clamp surges across the output switching
contacts.
Scripting Language, Syslog, and Utilities
Lua scripting can be used to create custom control and reboot
sequences, schedule periodic reboots, etc. Internal and external
event logs are provided.
New Features
New features include MODBUS, Improved RESTful API, Email,
SNMP and Jabber notication, longer clock battery life, HTTPS,
WiFi support, SNMPV1-3, SSH and Lua scripting.
Field Upgradeable Firmware
Firmware is eld upgradeable via Ethernet.
Package Contents
• DC Smart Switch 32 with input compression lugs, and output
screw terminals.
• RP-SMA 2.4GHz WiFi Antenna
• Rack mounting brackets (front, center or rear mount).
Options
• Custom PTC fuse ratings.
• External contactors
• IoT AC control relay
Inspection
Please contact the freight carrier immediately if your package
appears opened or damaged in transit. Call DLI at (408) 330-
5599 for tech support, service, and hardware upgrades. The
product performs a brief self-test when rst powered up.

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Important Factory Defaults
IP: 192.168.0.100
User name: admin
(lower case)
Password: 1234
To reset to factory defaults,
gently press the reset-to-
defaults button below the LCD
to enter the reset menu, then select a reset option.
Quick Setup
Use these shortcuts if you are an experienced installer. We
recommend reading the entire manual for rst-time installation.
• Unpack. Save the carton. Attach the line cord. Connect power
and loads. The switch can be installed “high side” or “low side”.
Inputs can be positive or negative. Returns are bonded together.
• Attach an Ethernet cable from the controller to your LAN. Switch
power on. If you are attached through a switch, you may need to
power-cycle your switch to initially establish a connection.
• Ping the default address 192.168.0.100 to conrm that a
network connection is established. If you don’t receive a response,
proceed to the IP Setup section below.
• Log in to the switch using the default user name admin and the
password 1234 Note: “admin” must be entered in lower case.
• Click the Settings link to reach the conguration page. Select
the safest power-loss conguration for your installation: (all OFF,
all sequential ON, or pre-powerloss sequential ON) Note that pre-
powerloss means the last previously congured state, and it does
not take cycling into account. “Power loss” means <10.5V DC
power for more than 100ms on both the A & B bus simultaneously
• Congure the switch as described below. After each change,
click Submit and wait for the page to refresh before continuing.
Tip: A digital meter is handy for checking conguration and
actual current drains.

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IP Setup
If your network settings won’t access the default IP, use a direct
cable connection (temporarily bypass any switch or router)
and follow these steps to add a compatible static IP, such as
192.168.0.50 Before adding an IP, close all programs and
browsers. After the link is established, you can enable DHCP.
Windows Step 1
In Windows, the rst step is locating the network adapter TCP/IP
properties. The procedure di󰀨ers for each Windows version:
Windows XP, 2000, 2003: Open Start / Control Panel / Network
Connections. In “classic view”, select Start / Settings / Control
Panel /Network Connections. Right-click on Local Area
Network Connection and select Properties. Proceed to step 2.
Windows Vista: Open Start, right click on Network, then on
properties. Double click Network and Sharing Center, click
Manage Newtork Connections. A Network Connections window
appears. Right click on the network connection to the switch, ie.
Local Area Network. Proceed to step 2.
Windows 7: Open the Start orb, click on Control Panel. Click
View Network Status and Tasks, then Change Adapter
Settings. Proceed to step 2.
Windows 8-10: Right-click on the Windows Start button. Select
Control Panel. Select Network and Sharing Center or Network-
>Network Settings. Click Change Adapter Settings or Adapter
Options. Right click on your connected network and select
Properties. Proceed to step 2.
Windows Step 2
The second step is adding an IP such as 192.168.0.50
Temporarily disable DHCP while conguring the switch.

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Select Internet Protocall TCP/IP V4 Properties and click
Properties. Enter a compatible static IP such as:
Click Apply and
close windows.
Ping to conrm the
connection.
Point your browser to 192.168.0.100 Log in. Detailed instructions
are at digital-loggers.com/ip_setup
Mac OS X
Turn AirPort o󰀨 temporarily. Click the Apple logo, then System
Preferences, then Network. Select Built-In Ethernet and then
Congure. Under the TCP/IP tab, select Manually and enter an IP
address such as 192.168.0.0 as shown:
Make changes shown. Point a browser to 192.168.0.100 Log in.
Find Mac setup details at digital-loggers.com/mac_ip_setup
Network Conguration
HTTPS is disabled by default. WiFi is enabled with a random
key. Start by establishing a hard-wired network connection to

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192.168.0.100, or use the LCD and keypad to display the default
WiFi SSID and password. The Settings page controls network
conguration:
The IP address of the controller needs to match the “class C” of
your system. In other words, the rst three bytes (192.168.0) must
match the IP on your computer to access the Pro. Using a ping
utility is a good way to conrm a valid network conguration. An
“unreachable” report from Ping indicates miscongured network
settings.
Once you have a connection, the switch may be operated via a
web browser. To access the Pro, enter the IP address in the URL
eld of your web browser. The default is http://192.168.0.100 SSH
is disabled by default.
After setup, the HTTP and SSH ports (if enabled) may be moved
to improve security. For example, changing the HTTP port to
2015 requires a browser URL of 192.168.0.100:2015 to reach the
switch. Note that some browsers will deny connections to
ports under 1024.

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Home (Outlet Control) Page
To access the home page, rst enter the controller’s IP address in
the browser URL eld, then log in. User admin has access to all
features. Other users have limited access to circuits as assigned
by the administrator.
Relay Control
Clicking “Relay Control” links to the home page used for manually
switching circuits on and o󰀨. Access to specic circuits is
determined by user-name. Admin controls all circuits.
Setup
The setup page lets you set outlet names, create web links, adjust
startup delays, and set a power loss recovery mode. You can also
add user accounts and change login credentials on this page.
Scripting
The Lua language lets you easily customize the switch. Scripts
may be started manually, automatically on power-up, by external
http commands, or by AutoPing events. Find a list of commands
and examples at: digital-loggers.com/scripts.html
AutoPing
The AutoPing page lets you set parameters to automatically

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reboot attached equipment. First, specify an IP address to ping.
Next, adjust the timing settings and use the checkboxes to link the
IP to power circuits. For example, if a router is unreachable, you
may choose to automatically reboot both a router and a switch
attached to two di󰀨erent circuits. Learn more on page 13 and at
digital-loggers.com/AutoPing
System Log
The switch keeps internal event logs including logins, outlet
switching, errors, and AutoPing events. Recent events are stored
in the log and accessible from the System Log page. SYSLOG
export is supported. More information: digital-loggers.com/syslog.
html
Logout
Browser logout is automatic when a session is closed or after a
time-out period. Use this link to log-out in advance.
Programmable Web Links
User-dened web links are provided. Set names and destination
URLs for these links on the Settings page. These are convenient
for connecting to other power controllers, linking to page hosted
elsewhere, and for starting scripts.
Switching Circuits On and O
The relay control page lets you control any circuit. The master
control lets permitted users switch all circuits on or o󰀨.
To switch a circuit, simply click to the right of the relay name or
number. On->O󰀨 switching is immediate O󰀨->On switching speed
is limited by the adjustable On Sequence Delay setting.
Use the keypad for local control: Select an outlet using the
arrow keys, then press on, o󰀨, or cycle. Press ON or OFF for 5
seconds to lock or unlock an outlet. Locking prevents web access.
To change the display mode, press the up and down arrows
simultaneously. The keypad may be disabled on the Setup page.
You may also want to Cycle an attached device. This feature is

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useful for rebooting Ethernet devices which may interrupt the
web link to the switch. Clicking Cycle switches power o󰀨, waits
for the Cycle time, and then switches power back on while
conforming to the ON Sequence Delay. This can be used to
restore connectivity).
You can also cycle all relays using the Master Control on the
bottom of the page. An adjustable ON sequence
delay takes e󰀨ect when relays are turned on one
after another, ehether when using the button, on
power-up, or when switching manually using the
front panel. This prevents power surges. A
separate Cycle delay setting is provided on the
setup page.
Depending on your web browser settings, you may need to click
the Refresh button or F5 key to update the on-screen status
display after changing settings. Screen refresh rate is adjusted
in two places: on the Setup page and in your browser settings.
Setup Page
The Setup page allows the admin to congure:
Controller and Outlet Names
Use the controller name eld to assign a name to the switch.
An example is Rack 4 PDU. The Controller Name will appear on
top of all pages. Assign a separate name to each outlet, such as
DSL Router 1 or Wireless Link to aid identication. Check the
Conrm box to the right of the outlet name if you prefer a pop-
up window conrmation before switching critical circuits.
Power-On Sequence Delay
When a time value is entered in the All ON Sequence Delay
eld, the switch will pause for a period of time before switching
each outlet on in sequence. This delay helps prevent power
surges and blown circuit breakers which can occur when
multiple devices are switched on simultaneously. A delay of 60
seconds is suggested for server applications.

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You may also enter a screen refresh delay in this section. If Enable
screen refresh is checked, and a delay value is entered, your
browser should periodically update the status screen.
Wrong Password Lockout
After three failed login attempts, the switch may be set to ignore
login attempts for a period of time (0-60 Minutes).
Power Loss Recovery Modes
The power loss recovery mode setting has a very important setting
that determines operation after a power failure:
1. Turn all circuits o󰀨 (all systems will be switched o󰀨 until
manually turned on later, possibly by a script).
2. You can automatically turn all circuits on using the
sequence delay timer described above.
3. You can return to the same power settings that were
used prior to the power loss. ie. 1 On, 2 O󰀨, etc. The ON
Sequency delay timer is used here as well.
Note: If you have written a power-on script, the recovery mode
takes eect before script execution begins. Scripts start after self-
test, approximately 30 seconds after power-up.
User Dened Links
Add hyperlinks to other power controllers, your own web pages,
or remote web sites by entering URLs in the Setup page. For
example, enter “Site Two Power Controller” in the description eld
and a URL of “192.168.0.250” These links appear on the left side
of the web pages.
Access Control
The administrator can grant users access to only certain circuits.
To set permissions, login as admin rst, then create a permissions

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matrix by entering user names on the left and checking allowed
circuits on the right.
Network Settings
A valid xed IP address, network mask, and gateway must be
entered in this section.
When changing IPs, you may need to restart your network switch
to validate the new IP on an “auto-conguring” switch port. Be
sure to record the new IP address.
Use the Protect button to lock the network settings. Once
protected, the network settings cannot be changed except by
pressing the physical reset button near the Ethernet jack.
AutoPingTM
AutoPing Operation and Settings
AutoPing is an automatic system for rebooting IP equipment
without human intervention. AutoPing will monitor a device. If
it stops responding, AutoPing can cycle power to reboot it. For
example, you might use AutoPing to monitor an external multi-cast
IP to automatically reboot a DSL router or WiFi AP.
To use AutoPing, rst add an IP address. Next, link that IP address
to one or more outlets. Timing settings must be considered.
Add IP Address to AutoPing
Use this option to specify the address of an IP device you wish
to monitor. After entering the IP address, the settings page
will refresh and you can select the outlets associated with this
address. Use the checkboxes in the AutoPing section to correlate
the IP address to one or more outlets. If communications to
the target IP is lost, these outlets will be rebooted. Four main
parameters control AutoPing:

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Time between pings
This is the time between each “ping” check of the IP address. 60
seconds should be useful for most applications.
Ping failures before reboot
This sets the number of failed communications attempts that
must be sequentially detected before a power cycle. For
example, when set to 5, the target system must fail to respond
5 times in a row before it is rebooted. Since occasional network
timeouts and packet loss can occur during normal Ethernet
operation, between 5 and 10 pings is suggested.
Times to Attempt Reboot
If you have an unreliable target device, or one that may be
damaged be excessive power cycling, you can limit the number
of times it will be rebooted here. For example, entering 5 to
reboot your server up to 5 times before giving up.
Device Reboot Delay
After power cycling to reboot a device, a waiting period will occur
before the IP address is re-checked by AutoPing. This delay
allows the device time to reboot. Most devices take some time
to reboot. Windows and Linux servers can force automatic le
system checks which may take several minutes to complete.
To allow for startup delays, enter a time delay in the Device
Reboot Delay period. For example, a reasonable value for a
typical server might be 10 minutes (600 seconds). Entering 600
would cause the power controller to start checking the server for
normal IP operation 10 minutes after reboot.
Learn more: digital-loggers.com/AutoPing2.html
AutoPing Example
In this example, we use AutoPing to automatically reboot a DSL
router. Since the switch is connected inside the router, we select
a target IP of 8.8.8.8 This is a multi-cast address which connects
to a multitude of Google name servers. We can safely assume

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that if none of them respond, we have lost network connectivity.
We connect a router to outlet 1, enter the external IP on the left,
and leave all timing values at defaults.
Internet Access
Like to access your switch over the Internet? Learn how
to congure your router at portforward.com A rewall is
recommended.
Mobile Device Access
Non-admin accounts have a simplied UI suitable for mobile
devices with small screens. Third-party applications are available
to control various DLI products from Android and IOS. These
apps are sold and supported by independent developers, not by
DLI. Learn more: digital-loggers.com/mobile.html
Real-Time Clock
An internal Real-Time-Clock (RTC) is provided. This clock can be
set manually using the Date/Time link. The time zone is set based
on GMT. Batteries have an estimated 15-year lifetime.

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Lua Scripting and RESTful API
The controller can be customized using the Lua language. A full
description is beyond the scope of this guide, so please visit:
lua.org
digital-loggers.com/scripts.html
The REST API: www.digital-loggers.com/RESTAPI,pdf
Safety Shutdown
The switch uses thermal circuit breakers for safety. In the
event of an overload, a breaker will trip. Correct the situation
by removing excessive load, then allow a minute or two for the
breaker to cool. Cycling power on and o󰀨 with the red rocker
switch resets the breaker. The maximum rated current is 15A.
Open Source Code
In compliance with the spirit of the GNU public license, source
code is provided for reference. Purchasing a TLA and signing
an NDA from Atheros / Qualcom is highly recommended before
attempting any custom development. DLI can’t provide warranty
or o󰀨er tech support for modied units. We abide by the NDA.
Technical Support & FAQs
Please register. Painless on-line registration gets you free tech
support, access to rmware updates, and information when
updates and new features become available. Use the following
QR codes for current manuals, and do take advantage of the
FAQ page:
digital-loggers.com/dc3faqs.html
Your Suggestions Are Appreciated!
At DLI, we listen to customers. Please send suggestions to
[email protected].

32-Port DC Smart Switch digital-loggers.com
Latest Manual
AutoPing AC Model
Scripting DLI Homepage
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32-Port DC Smart Switch
17
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Specications
Alert Beeper 73dBa at 12”. Programmable.
Applications Commercial, industrial power distribution.
and remote reboot. Indoor use only.
Circuit Breakers Auto-reset 3A outputs, 50A manual rest on
inputs.
Clock / RTC 15 year Li battery, under 2 grams
Controls / Display Reset -to-factory-default switch, 2x16 Backlit LCD
w/ PowerSave, 5 button keypad
Enclosure Steel, double grounded. Vented 4 sides.
Ethernet Interface 10/100 autosensing, Static IP, TCP port selectable,
8 pin RJ-45 w/ internal FCC ltering, WiFi
FCC Testing Part 15 FCC ID 2ACIUDC3
Humidity 8-80% RH Operating
Input Terminals Two 50A copper compression lugs
Output Terminals 32x screw compression blocks. 3A nominal.
Power Input 2x50A, 12-72VDC, positive or negative ground
Operating Temperature -30º to 170ºF, -34º to 77ºC
Options - Factory Custom breaker ratings. External contactors.
Power Supply Rating 12-72VDC. Undervoltage lockout at 11.3V
Password Transmission Encrypted, base 64 or HTTPS
Power Dissipation 12.4W Typ Max (all on) <3 W idle
Power Fail Hold-Over 100ms minimum (all relays on)
Power-Up Modes Last used settings, all power on or o, sequential
on or run user-script ~30s after power-up
Relay Specs 25A DC NO, 12V DC coil
Surge Protection 32x 100V varistors on ouputs, 2x 80V on inputs.
Size 1.75 (1 RU) x 9.0 x 19.0”’”
Weight (packed) Single unit 11lbs 4.8kg
WiFi Atheros 9331 2.4G 802.11n RP-SMA - FCC Note:
The switch may only be used with (1) the manu
facturer supplied antenna (Gain: 2.0dBi),or (2) a
50 Ohm antenna of equal or lesser gain.

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Limited Five Year Warranty
The terms of this warranty may be legally binding. If you disagree with the terms
below, return the product immediately in original unopened condition for a full
refund. The purchaser assumes the entire risk as to the results and performance
of the unit. DLI makes reasonable e󰀨ors to snure that this power controller is free
of major defects. No agency, country, or local certications are included with this
unit. It is the responsibility of the user to obtain such certications if necessary
for the customer’s application. Buyer acknowledges and agrees that he is solely
responsible for proper use, certication and safety testing of components supplied
by DLI. DLI’s entire liability and exclusive remedy as to defective hardware shall
be, at DLI’s option, either (a) return of the purchase price or (b) replacement or
repair of the hardware that does not meet DLI’s quality control standards and
has been returned through proper RMA procedures. DLI’s liability for repair
or replacement is to DLI’s customer ONLY. NO SUPPORT IS PROVIDED
FOR MODIFIED FIRMWARE. MODIFICATION OF FIRMWARE VOIDS ALL
WARRANTY. Warranty service requires an original invoice from DLI and an RMA
number provided by technical support. RMA material must be shipped prepaid to
DLI. RMA numbers are valid for 15 days from date of issue. This warranty does not
cover products which are modied (including rmware modications), subjected to
rough handling, or used in applications for which they were not originally intended.
Batteries are not covered under warranty. Physical damage caused by customer or
in transit to DLI is not covered under warranty. Please insure your shipments. No
oral advice or verbal warranties made by DLI’s employees, dealers, or distributors
shall in any way increase the scope of this warranty. DLI makes no warranty as to
merchantability or tness for any particular purpose. DLI assumes no liability for
incidental or consequential damages arising from the use or inability to use this
product. This warranty gives you specic legal rights. You may also have other
rights that vary from state to state. Since some states do not allow the exclusion of
liability for consequential damages, some of the above limitations may not apply.
Auto-PingTM is a registered trademark of Computer Performance, Inc. Since this
is a FLASH based product, rmware should not be updated over the Internet or a
busy LAN. Packet loss could result in FLASH corruption, requiring mail-in service.
This product is designed for indoor use only. It should not be used for outdoor,
mobile, airborne, or FDA Class III applications.
DIGITAL LOGGERS, INC.
2695 Walsh Avenue
Santa Clara, CA 95051
Digital-Loggers.com
[email protected]
© 2017 DLI This product is protected by pending US patents and foreign patents
Released 5/21/2017

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