Instruction/ maintenance manual of the product NPS-2HD Western Telematic
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NPS-2HD Heavy Duty Network Power Switches User's Guide.
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Warnings and Cautions: No Serviceable Parts Inside; Authorized Service Personnel Only Do not attempt to repair or service this device yourself. Internal components must be serviced by authorized personnel only .
Rack Mount Installation (Continued) 1. Enclosed Racks (Continued): The ambient within the rack may be greater than room ambient. Installation should be such that the amount of air flow required for safe operation is not compromised. The maximum temperature for the equipment in this environment is 45 ° C.
Table of Contents.
List of Figures.
1. Introduction Network equipment sometimes "locks-up", requiring a service call just to flip the power switch to perform a simple reboot. The NPS-2HD Heavy Duty Network Power Switch gives y.
Typographic Conventions Throughout this manual, typefaces and characters have been used to denote the following: COURIER FONT Indicates characters typed on the keyboard. For example, /ON 1 or /OFF 2 . [Bold Font] T ext set in bold face and enclosed in square brackets indicates a specific key .
2. Unit Description 2.1. Front Panel As shown in Figure 2.1, the NPS-2HD front panel includes a series of LED indicators which function as follows: À ON: Lights when AC Power is applied to the NPS-2HD. Á RDY : Flashes when the NPS-2HD is ready to receive commands.
2.2. Back Panel À Bus 2 (Plug 2): Includes the following components: A) Power Inlet: Supplies power for Bus 2. B) Circuit Br eaker: 1 15 V AC, 20 Amps C) Switched Outlet: Each bus can switch up to 20 Amps. Á Bus 1 (Plug 1): Same as Item 1 above, except the Bus 1 Power Inlet supplies power to Bus 1.
3. Quick Start Guide This section provides a brief overview of basic NPS-2HD capabilities, and describes a simple test that can be performed to determine if the unit is operating properly and demonstrate basic communication capabilities.
4. Configure Network Port: In order to allow communication with the NPS-2HD via the Network Port, you must first define the IP Address, Subnet Mask, and Gateway Address. At the NPS command prompt, type /N and press [Enter] to display the Network Parameters menu.
5. Exit Command Mode: When you have finished setting Network Parameters, type /X and press [Enter] to exit the command mode at the Console Port. Note: Only one port may access the NPS command mode at a given time.
8. T est Boot Commands: When the NPS-2HD is powered up, both switched plugs will be set in the ON position. In order to test for proper operation, you may wish to perform the following test. Note that it is not necessary to connect a device to either switched outlet in order to perform this test.
4. Installation 4.1. Power Connection Note that the NPS-2HD features two separate 20 amp buses. In order for both buses to function, power must be connected to both input connectors on the unit's back panel.
4.1.2. Output Cable Clamp 1. Loosen Screws: Locate the two screws which secure each output jack to the NPS-2HD back panel. Carefully loosen each screw to provide sufficient room for the cable clamp to be attached after it is fitted to the cable.
4.1.3. Input Cable Clamp 1. Loosen Screws: Locate the two screws which secure each input jack to the NPS-2HD back panel. Carefull loosen each screw to provide sufficient room for the input jack clamp to be attached.
4.2. Option Switches The Option Switches select default settings for the Baud Rate, Command Echo, Boot Delay and Disconnect T imeout. Default settings selected via the Option Switches will be used when the unit is reset to default parameters as described in Section 4.
4.3. Reset Unit to Defaults If Option Switch settings are changed, the new settings will not be applied until the unit is reset to default settings. There are two ways to reset the unit to defaults: Note: When these reset procedures are performed, all user selected parameters, including passwords and port names will be lost.
4.4. Console Port Connection The Console Port is a male, DB9 connector , wired in a DTE configuration (similar to an A T computer), which is used for connection to a local PC or control device.
5. Configuration 5.1. System Mode and User Mode In order to restrict access to sensitive command functions, the NPS-2HD features two separate operating modes; System Mode and User Mode. The System Mode allows access to all configuration menus, command functions and status screens.
5.2. Communicating with the NPS In order to configure the unit or invoke command functions, the user must first connect to the NPS and access the command mode. 1. The NPS-2HD is transparent to parity and will accept 7 or 8 bit characters, but will always answer back at 8 bits, no parity .
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5.3. NPS Command/Menu Conventions When invoking NPS-2HD commands and selecting items from configuration menus, note the following: · T o display the Help Screen, type /H [Enter] . · All NPS commands can be invoked at the NPS> command prompt, or from the General Parameters Menu, Port Parameters Menus or Network Parameters Menu.
3. Modem Initialization String: T o define the Modem Initialization String (up to 32 characters), type 3 and press [Enter] . For more information on the initialization string, please refer to the user's guide for your external modem. Make certain that the modem is set to auto- answer in one ring.
7. Disconnect Timeout: Determines how long the NPS-2HD will wait for additional commands. T ype 7 , press [Enter] , and follow the instructions in the submenu. (Default determined by Option Switch 4; Factory Setting = 2 Min.). Note: It is recommended that the Disconnect T imeout should be set at the lowest acceptable value.
A. Default Parameters: Resets the NPS to the default values specified by the Option Switches. In addition, all menu selected parameters, including port names and passwords, will be lost. Note that if Command Confirmation is disabled, the "Sure?" prompt will not be sent.
2. Password: (Up to 16 Characters) Assigns a User Password to this plug. When a User Password is assigned, the plug is then "owned" by that password. When a User Password is entered at login, the user will have access to only the plug(s) which are owned by this password.
5.6. Network Parameters In order to communicate with the NPS-2HD via network, the IP Address, Subnet Mask and Gateway Address must first be defined using the Network Parameters menu. If desired, this menu also allows you to implement IP Security features, which restrict command mode access based on the user's IP Address.
5.6.1. Implementing IP Security The NPS-2HD can be configured to restrict unauthorized IP addresses from T elneting to the unit. This allows the user to grant T elnet access to only a specific group of IP addresses, or block a particular IP address from gaining access.
Example 1: Deny access to all hosts except 192.1.1.5: Since 255 is a wild card, Mask #1 blocks all IP Addresses. Mask #2 then specifically grants access to 192.1.1.5 only . Example 2: Allow access only by addresses that begin with 192. Since 255 is a wild card, Mask 1 blocks all IP addresses.
5.7. Save Configuration Parameters After the unit has been completely configured, it is recommended to save parameters to an ASCII file as described in Section 7. This allows quick recovery in the event that the unit is reset to default parameters, or the configuration is accidentally deleted or altered.
6. Operation 6.1. Access the NPS-2HD Command Mode Commands can be sent to the NPS-2HD via Network or modem, or from a local PC connected to the Console Port. T o access the Command Mode, proceed as follows: Note: Only one port can access command mode at a given time.
6.2. Displaying Plug Status The Status Screen displays the On/Off state and selected parameters for the switched plugs. T o display the Status Screen, type /S and press [Enter] . Note that although the /S command is available in both User and System Mode, the System Status Screen includes more information than the User Status Screen.
6.3. Boot/On/Off Commands These commands are used to Boot or toggle the On/Off status of the NPS's two switched plugs. If the same password has been applied to both switched plugs, commands can be directed to Plug 1, Plug 2, or both switched plugs.
2. Switch Plug(s) On: T o power-on a plug, type /ON n and press [Enter] . Where " n " is the number or name of the desired plug. Examples: · T o power-on both plugs, type /ON * and press [Enter] . · T o power-on Plug One, type /ON 1 and press [Enter] .
6.4. The Default Command The Default Command ( /D ) sets plugs to their default On/Off status. The default status is set using the Plug Parameters menus described in Section 5.5. T o set plugs to defaults, type /D and press [Enter] . Note: · When User Mode is active, this command will only be applied to the plug owned by the User's password.
T o enable/disable the Automated Mode, access the NPS General Parameters menu, and proceed as described in Section 5.4. When the Automated Mode is enabled, NPS functions will change as follows: 1.
6.6. Other Commands 6.6.1. Login as Different User The /R command is used to re-login using a different password. When invoked, the NPS will display the password prompt, allowing the user to enter a different password in order to access the other plug or System Level command functions.
6.7. Manual Operation In addition to the command driven functions, the NPS's two switched plugs can also be toggled On and Off manually . T o manually toggle a plug On or Off, press the appropriate Manual Control Button, and hold it down for approximately one second; the corresponding plug will be toggled On or Off.
7. Saving and Restoring Configuration Parameters After the NPS-2HD has been properly configured, parameters can be downloaded and saved as an ASCII text file.
7.2. Restoring Saved Parameters This section describes the procedure for using ProComm to send saved parameters to the NPS-2HD. 1. Start your communications program and access the NPS command mode using the System Level Password. 2. Configure your communications program to upload an ASCII text file.
A. Interface Descriptions A.1. Console Port Interface.
A.2. Modem Port Interface.
B. Specifications Power Input/Output; Model NPS-2HD (1 15 V AC) AC Inputs: T wo (2); Bus 1 and Bus 2. Input V oltage: 105 - 120 V AC, 60 Hz Input Connector: IEC-320-C19 Inlet AC Outputs: T wo (2); Bus.
C. Customer Service Customer Service hours are from 8:00 AM to 5:00 PM, PST/PDT , Monday through Friday . When calling, please be prepared to give the name and model of the unit, its serial number and a description of its symptoms.
Trademark and Copyright Information WTI and W estern T elematic are trademarks of W estern T elematic Incorporated. All other product names mentioned in this publication are trademarks of their respective companies. Information and descriptions contained herein are the property of W estern T elematic, Inc.
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Index # A B C D E F G H I L.
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