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Web Power Switch
User’s Guide
Revision LPC-2
WEB POWER SWITCH
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Standard Features
Congratulations on your purchase. The web power switch is a cost
effective AC power switch for remote control and reboot.
Web Interface
The internal web server is accessible from any standard web
browser. Enter an IP address, and the switch may be configured and
controlled via the web.
8 Switched Outlets + 2 Un-switched Outlets
Eight switched circuits are provided, each with a switched outlet. Two
un-switched circuits power “always on” devices. Line voltages from
90-240VAC voltage are detected automatically – just plug it in. A long
12Ga cord and 15A breaker provide protection for all 10 outlets.
Security Features:
Password Security, HTTP Port and Subnet Restriction
Password security limits access to the switch. A changeable HTTP
port makes the switch virtually impossible to access without knowing
your custom URL. Subnet restriction restricts control to your LAN.
Sequenced “On Timer”
A programmable delay timer allows outlets to be switched on in
sequence, rather than simultaneously. Most electrical devices draw
more power when they are initially switched on. Using this timer,
more equipment can be attached to a single circuit without overload.
Flash Firmware Upgrades via Ethernet
Upgrade FLASH via Ethernet as new features become available.
At DLI, we listen to customers. Send your suggestions to
engineering@digital-loggers.com. Since we’re constantly adding and
changing features, specifications are subject to change without notice.
WEB POWER SWITCH
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Optional Product Features
Factory included options are:
o Internal Auto-Ping to automatically monitor servers
o Internal high-current MOV Surge Protection
User installable options are:
o Rack Mount Bracket $19.
Factory (mail-in) options are:
o EEPROM Memory Expansion $39.
These features and this manual apply to the second upgraded
version of this product, P/N LPC2. For early units, download
www.digital-loggers.com/lpcman.
Important Factory Defaults
DEFAULT IP ADDRESS
The factory default IP address is 192.168.0.100
DEFAULT LOGIN
User name; admin (lower case)
Password: 1234
To reset the IP address and login to defaults:
• Switch the unit on
• Gently depress the reset switch with a pen for 2 seconds.
• The OUTLETS ON and REMOTE ACCESS lights will flash.
WEB POWER SWITCH
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Note: This resets the admin login and IP address, but it won’t affect
outlet names and links.
Quick Setup
Use these shortcuts if you are an experienced installer. Please
read the manual if you haven’t connected a web accessible
product before.
1. Connect to your LAN Using a straight RJ-45 cable. Make
sure the 192.168.0.100 address is compatible with your LAN,
otherwise use a crossover cable directly to your PC.
2. Switch the web power switch on.
3. Enter 192.168.0.100 in your web browser address bar. If the
login page doesn’t appear, follow the network setup
instructions.
4. Login using the default user name, admin (lower case).
Enter the default password, 1234
5. Use the setup page to add outlet names or change the IP
address.
6. Set the recovery mode for safety after a power failure.
7. Change the password for improved security.
Tip: A lamp, outlet tester, or small appliance is handy for testing the
switch. This ensures that the switch has been configured properly
before attaching your equipment.
Windows IP Setup (2000, 2003, XP, Vista)
If your default Windows settings won’t access the switch, use a
crossover cable and follow these steps to reach the switch.
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1. Before adding an IP, close network programs and
browsers. Go to the Network Settings – Local Area
Network.
2. Use the keyboard shortcut <Windows-R> - type “ncpa.cpl”
and click OK.
3. Right click on your LAN connection and choose
“Properties”. Highlight “Internet Protocol” and click the
“Properties” button.
4. Click the “Advanced” button. Under the IP Address
settings, click the “Add” button.
5. Enter a new IP, such as 192.168.0.10, and a subnet mask
of 255.255.255.0. Press the “Add” button. This new IP is
added the list.
6. Close all windows for the configuration to take effect.
Start your Browser and type 192.168.0.100 in the URL field. The
login page should now be displayed. The default user name and
password are “admin” (lower case) and “1234”.
Basic Operation
After power-up, the switch performs a sequence of self-tests to
ensure reliability. After self-test, an internal web browser starts using
the fixed (static) IP address selected on the setup page.
The switch may then be operated via a web browser. To access the
switch, simply enter the IP address in the URL field of your web
browser.
WEB POWER SWITCH
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Home (Outlet Control) Page
To access the home page, first enter the IP address in web browser
URL field, then log in. The home page contains links to other pages.
The first four are static internal links:
Outlet Control
Clicking “Outlet Control” links to the home page used for manually
switching outlets on and off. Access to specific outlets is determined
by your login.
Settings
Clicking “Settings” links the administrator to a configuration page. This
page is used to set outlet names, power on features, network
settings, user information and passwords.
Help
The Help link displays the latest online manual. Since features are
subject to change without notice, this manual may not be a perfect
match for your switch, but the later manuals will include all legacy
features.
Logout
Logout ends the web session. A login is required to reconnect.
Programmable Web Links
Four additional user-defined web links are provided on the outlet
control page. Factory defaults are “Link 1”, “Link 2”, etc. You may
change the name and destination URL for these links on the “Setup”
page. These links are convenient for connecting to other power
switches or to remote sites.
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Switching Outlets on and Off
The outlet control page lets you control any switched outlet, but not
the always-on pair). The sequence delay in which outlets will be
switched on is determined by settings on the setup page.
To switch an outlet on or off, simply click to the right of the outlet
name or number. Switching is immediate.
You may also “Cycle” a device which is connected to the switch. This
feature is useful for rebooting Ethernet devices which may interrupt
the web link to the switch. Clicking “Cycle” switches power off, waits a
few seconds, and then switches power back on. This resets the
attached device. You may also “cycle” all outlets using the “Cycle all
outlets” button on the bottom of the page.
Depending on your web browser settings, you may need to click the
“refresh” button to update the on-screen status display after changing
settings. Most browsers update automatically after one minute.
Setup Page
The settings page allows the administrator to configure the power
switch. These settings are supported:
Switch and Outlet Names
Use the switch name fields to assign a Switch Name to the power
switch itself. Examples are “Server Rack Power Strip” or “Plutonium
Refinery Control”. The Switch Name field appears on the top of the
home page. Assign a separate name to each outlet, such as “Missile
Launcher” or “Email Server” to make identification of each circuit
simple.
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Power-On Sequence Delay
When a time value is entered in the “All ON sequence delay” field, the
power switch will pause for a period of time before switching each
outlet on in sequence. This delay helps prevent the 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.
You may also enter a screen refresh delay. If “Enable screen refresh”
is checked, and a delay value is entered, your browser should
periodically update the status screen.
Power Loss Recovery Modes
The power loss recovery mode setting has three settings which
take effect after a power failure:
1. You can turn all outlets off (all systems will be switched off
until manually turned on later) by checking the first box.
2. You can automatically turn all outlets on using the “All ON
sequence delay” described above. Check the second option
to do this.
3. You can return to the same outlet settings that were used
prior to the power loss. The “All ON sequence delay” will
also be used in this instance.
User Defined Links
You may link to other power switches, your own web pages, or
remote web sites by entering up to four URLs and descriptions in the
Setup page. For example, enter “Site Two Power Switch” in the
description field with a URL of “192.168.0.102” These links appear on
the home page.
Network Settings
A fixed IP address, network mask, gateway, and subnet mask must
be entered in this field.
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When changing IP addresses, you may need to restart your network
switch to validate the new IP on an “auto-configuring” switch port. Be
sure to record the new IP address.
Status LEDs
Five LEDs provide status indications:
Network Link / Activity
The green light on the RJ-45 connector illuminates when there is
continuity in the network cable. While the link LED shows that a cable
is connected on both ends, it is not a definite indication of a good
connection. The amber activity LED illuminates when there is any
network traffic detected. This traffic may not necessarily be sent to
the switch.
Power LED
The power illuminates whenever the main power switch is turned on.
This indicates that there is power to the main (unswitched) outlets.
Outlet ON LED
The outlet ON LED is off when all outlets are switched off and none
of them is going to be switched on during delayed sequence. The
LED blinks once for each outlet switched on according to the
following graph:
__ __ __ __ __ __ __ __ _ __ __ __ __ __ __ __ __ _
|__|__|__|__|__|__|__|__|_| |_|__|__|__|__|__|__|__|__|_| | ...
1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8
---time--->
Remote Access LED
The Remote Access LED lights when a non-expired login session
exists. The light goes out after all users log out or after 30 minutes
of inactivity. This LED also blinks to display any network activity.
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Security
Your switch employs javascript encryption and secure challengeresponse authentication. This gives it good out-of-the box security.
Adding additional security takes just a moment:
Changing the Password
It’s a good idea to change your password for better security. Change
it on the setup page, and write it down in a safe place.
Restricting Subnet Access
To restrict access to your local LAN, or “Class C”, check the subnet
access setting on the setup page.
Changing the HTTP Port
Changing the HTTP port makes it almost impossible for a hacker,
even one with your password, to find your switch.
Installing Inside a Firewall
Install your switch inside a firewall, rather than directly on the internet
for an additional layer of security.
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Remote Control from your Application
The switch can be easily controlled from your application or a
command line using the PERL script below. Download it from
www.digital-loggers.com/lpcperl.txt.
#!/usr/bin/perl -w
#---------------------------------------------------------------------use LWP::UserAgent;
#---------------------------------------------------------------------$ua = LWP::UserAgent->new();
#----------------------------------------------------------------------
if ($#ARGV <= 1)
{
print STDERR 'Usage: UserUtil <Host>[:port] <login:password>
<[n]{on|off|pulse|status}> ...'."\n";
exit -1;
}
($epc, $auth)=splice(@ARGV,0,2);
$base='http://'.$auth.'@'.$epc.'/';
foreach (@ARGV)
{
$_=lc;
s/(^[^1-8])/a$1/;
if (/^([1-8a])on$/)
{
RelLink('outlet?'.$1.'=ON');
}
elsif (/^([1-8a])off$/)
{
RelLink('outlet?'.$1.'=OFF');
}
elsif (/^([1-8a])pulse$/)
{
RelLink('outlet?'.$1.'=CCL');
}
elsif (/^([1-8a])status$/)
{
$n=$1;
defined($response) && ($response->content =~/<a href=outleto/) ||
RelLink('');
$content=$response->content;
while ($content =~ /<a href=outlet\?([1-8])=(on|off)>/ig)
{
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if (($1 eq $n) || ($n eq 'a'))
{
if ($2 eq "ON")
{print $1," OFF\n";}
else
{print $1," ON\n";}
}
}
}
else
{
die "Unknown command $_\n";
}
}
sub RelLink
{
local ($_) = @_;
#print STDERR $base.$_,"\n";
$response = $ua->get($base.$_);
$response->is_error() && die $response->status_line;
}
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Limited One Year Warranty
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 unopened
condition for a full refund. The purchaser assumes the entire risk as to the
results and performance of the unit. DLI warrants this power switch to be
free from major defects. No agency, country, or local certifications are
included with this unit. It is the responsibility of the user to obtain such
certifications if they are necessary. 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. WARRANTY SERVICE DOES NOT INCLUDE SOFTWARE OR
HARDWARE UPGRADES. No warranty service will be provided without 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 modified,
subjected to rough handling, or used in applications for which they were not
originally intended. 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 fitness 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 specific 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 to you.
DIGITAL LOGGERS, INC.
2695 Walsh Avenue
Santa Clara, CA 95051
FAX (408) 541-8459
www.digital-loggers.com
© 2008 DLI This product may be protected under US patents #5,777,811 and
#5,680,555. Additional patents pending.
Release 2.3.9 Monday, October 13, 2008
WEB POWER SWITCH
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