Remote Startup

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Remote Startup Capabilities

ClockWatch Enterprise can be used to remotely start up or
gracefully shutdown computers on your network.

Remote Startup
Remote Shutdown

Remote Startup
There are two options for starting a machine remotely with ClockWatch Enterprise.  The first involves using the Wake-on-LAN functionality available in many recent computers.  Alternatively you can use the Relay module to physically switch the power on to the computer. This is generally the approach to use on older computer hardware or hardware without Wake-on-LAN capability.

Wake-on-LAN (WOL)

With Wake-on-LAN capability you can start computers remotely over a LAN

In order to use Wake-on-LAN feature, your target computer must meet the following requirements:

  1. Have an ATX motherboard with an onboard, 3-pin WOL connector.
  2. Have an ATX ONLY power supply that meets ATX 2.01 specifications. The critical part is the 5V standby current, which must be at least 800 mA.
  3. A network card that can support WOL with its cable to the motherboard properly installed.
  4. In the BIOS Power Management, you must enable the LAN Wakeup option.
  5. Your system must be in a Soft-Off power state.

Note: ClockWatch Enterprise does not need to be installed on the target computer since the network card listens for the WOL packet to turn the computer on.

Using Wake-On-LAN
If the computer is configured for Wake-On-LAN then ClockWatch Enterprise can be used to send the Wake-On-LAN command from the controlling computer to start the target computer in a power down mode.  Steps to set-up remote startup with WOL:

  1. Verify that the computer has a network card, a motherboard, a power supply and an operating system that supports Wake on LAN.
  2. Using the remote command function in ClockWatch Enterprise, send the broadcast IP address and the network card device address (MAC address) to a computer running the ClockWatch Enterprise Service Module.
  3. The computer running the Service Module sends the magic packet across the LAN to the target computer currently powered down.
  4. Upon receiving the magic packet from ClockWatch Enterprise, the computer will wake up and boot the operating system.

Power line Switching
The Relay module is a computer to switch interface that allows the switching of AC power to devices such as computers. This allows the user to turn the AC power to a computer on or off remotely.

ClockWatch Enterprise software commands the power line interface which controls the device


Remote Switching Requirements

  1. The computer must be able to be turned on by turning on AC power. To test your computer for this capability: shutdown the computer, unplug the computer from the wall, turn the computer's On/Off switch to 'On' and then plug the computer back into the wall. If the computer starts on its own it can be used with Relay module.
  2. Install the Relay module on the remote computer running ClockWatch service module. This must not be the computer that will be switched.
  3. Plug the computer's power cord into the relay module . Plug the switch module into an AC-outlet.  Note the code and module number. Be sure the computer's power switch is on.

Using Relay Module

Steps to start a computer using the Relay module:

  1. From ClockWatch Enterprise Send the Relay swithc "on" command to turn on the computer remotely. This will switch power on to the computer.

Remote Shutdown
Using the remote command from ClockWatch Enterprise, you can send a command to shutdown a computer with the ClockWatch Enterprise client service module running. This allows an unattended remote shutdown of a client computer. There are several shutdown options including forced, and power down to remotely suggest of force a shutdown. Whether the computer will go to the power down state will depend on its ACPI capabilities and settings.

What is ACPI? 
ACPI (Advanced Configuration and Power Interface) is an industry specification for the efficient handling of power consumption in desktop and mobile computers. With ACPI, the computer can enter a stand-by mode when no one is using it.

ACPI must be supported by the computer motherboard, basic input/output system (BIOS), and the operating system. One of several power schemes can be chosen.   Within a power scheme, the user can control the power to individual devices. In order for ACPI to work on your computer, your BIOS must include the ACPI software and the operating system must be ACPI-compatible. ACPI is designed to work with Windows 98, Windows Me, Windows 2000  and with Windows XP. If you have ACPI enabled Windows, you'll find a description of ACPI in the help file.

Shutdown With APCI Compatible computers
Send the computer the shutdown command Using the remote Windows shutdown command within ClockWatch Enterprise. The computer must be running the ClockWatch Enterprise Service Module. This should place the computer in the powered-down state.

Shutdown With Non APCI Compatible computers
Send the computer the shutdown command Using the remote Windows shutdown command within ClockWatch Enterprise. The computer must be running the ClockWatch Enterprise Service Module. This should place the computer shutdown but powered on state.

Turn the power off to the computer with the Relay module. See the Relay module requirements and procedure above.


ClockWatch Enterprise Home Page   

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Copyright © 2007 Beagle Software. All rights reserved
Last reviewed March 19, 2008