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Western Telematic NPS-2HD - page 1
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 . • Shock Hazard - Do Not Enter Nameplate Power Warning This device should only be operated with the type of power source indicated on the ...
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Western Telematic NPS-2HD - page 4
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. Consideration should be given to the maximu ...
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Table of Contents ...
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List of Figures ...
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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 you the ability to perform this function from anywhere on the LAN/W AN, or if the network is down, to simply dial-in from a modem for out-of-band power ...
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Western Telematic NPS-2HD - page 8
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 . For example, [Enter] or [Esc] . ...
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Western Telematic NPS-2HD - page 9
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. Â RXD: Lights when the NPS-2HD receives commands. Ã DCD: Lights when the Modem Po ...
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Western Telematic NPS-2HD - page 10
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. Â Network Port and Activity Indicator: A 10Base ...
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Western Telematic NPS-2HD - page 11
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. Note that this Quick Start procedure is included only to provide a quick demonstration of basic NPS-2HD capabili ...
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Western Telematic NPS-2HD - page 12
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. a) Settings for network parameters will depend on the configuration of your individual ...
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Western Telematic NPS-2HD - page 13
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. In order to allow access to the NPS unit via other ports, always exit from the command mode when you are finished communicating with the ...
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Western Telematic NPS-2HD - page 14
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. a) Reboot Plugs: T o initiate a boot cycle at both p ...
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Western Telematic NPS-2HD - page 15
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. Prior to connecting power supply cables to the unit, please refer to the cautions below , and the cable clamp installation instructions i ...
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Western Telematic NPS-2HD - page 16
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. Note: Make certain to loosen the screws enough to allow the cable clamp to be installed, but do not enti ...
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Western Telematic NPS-2HD - page 17
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. Note: Make certain to loosen the screws enough to allow the clamp to be installed, but do not entirely remove the screws from the NPS ...
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Western Telematic NPS-2HD - page 18
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 4.3. Notes: • Although the Option Switches select default settings for these featu ...
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Western Telematic NPS-2HD - page 19
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. Prior to performing the ...
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Western Telematic NPS-2HD - page 20
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. Appendix A describes the Console Port interface. 4.5. Connecting an External Modem When connecting directly to an external modem, use a standard DB9 A T to ...
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Western Telematic NPS-2HD - page 21
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. When the System Mode is active, Boot/On/Off commands can always be d ...
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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 . Make certain your communication program (e.g. ProComm or Hyp ...
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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. · NPS commands ...
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Western Telematic NPS-2HD - page 25
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. (Default = ATE0M0Q1&C1&D2S0=1 ). 4. Mod ...
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Western Telematic NPS-2HD - page 26
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. Since only one port is a ...
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Western Telematic NPS-2HD - page 27
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. Note: If the Default Parameters function is invoked via the Network P ...
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Western Telematic NPS-2HD - page 28
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. (Default = undefined). Notes: · If you wish to allow a single user ...
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Western Telematic NPS-2HD - page 29
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. Settings for network p ...
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Western Telematic NPS-2HD - page 30
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. In the default state, the NPS accepts incoming IP connections from all hosts. T ...
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Western Telematic NPS-2HD - page 31
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. Mask 2 then grants access to all addresses that begin wi ...
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Western Telematic NPS-2HD - page 32
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. ...
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Western Telematic NPS-2HD - page 33
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. When you have finished communicating with the unit, always make certain to disconn ...
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Western Telematic NPS-2HD - page 34
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. When the Syste ...
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Western Telematic NPS-2HD - page 35
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. If a separate User Password has been assigned to each plug, then commands can only be applied to ...
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Western Telematic NPS-2HD - page 36
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] . 3. Switch Plug(s) Off: T o power-off a plug, type /OFF n and press [Enter] . Where &q ...
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Western Telematic NPS-2HD - page 37
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. ...
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Western Telematic NPS-2HD - page 38
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. All Password Security Suppressed: When a user attempts to access the NPS command mode, the password prompt will not be displayed at either the Network Po ...
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Western Telematic NPS-2HD - page 39
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. The /R command is typically used to switch from User Mode to Sy ...
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Western Telematic NPS-2HD - page 40
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. Note that if desired, the M ...
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Western Telematic NPS-2HD - page 41
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. Later , if the configuration is accidentally altered, the file with the saved parameters can be uploaded to automatically reconfigure the unit without the need to manually assign each paramet ...
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Western Telematic NPS-2HD - page 42
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. 3. Upload the file with the saved parameters. If ...
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Western Telematic NPS-2HD - page 43
A. Interface Descriptions A.1. Console Port Interface ...
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A.2. Modem Port Interface ...
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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 1 and Bus 2 Output Connector: IEC-320-C20 Outlet Load: 20 Amps Each Bus Modem and Console Port Interface: Connector: DB9M, RS232C, DTE Coding: Serial ...
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Western Telematic NPS-2HD - page 46
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. If the unit should need to be returned for factory repair it must be accompanied by a Return Authorization number from ...
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Western Telematic NPS-2HD - page 47
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.. Such information and descriptions may not ...
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Index # A B C D E F G H I L ...
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M N O P Q R S T U W ...
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· · · · ...
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