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Rack-Mount Fail-Safe 
Transfer Switch 
Installation and Operations Manual 
• C-8HFx 
© 2006-2007 Server Technology, Inc.  All rights reserved. 
• C-16HFx                                                                                                                                                                                                                                                                                                                                                         
                    
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                        Instructions  This symbol is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in  the literature accompanying the appliance.  Dangerous Voltage  This symbol is intended to alert the user to the presence of un-insulated dangerous voltage within the product’s enclosure  that may be of sufficient magnitude to constitute a risk of electric shock to persons.  Protective Grounding Terminal  This symbol indicates a terminal that must be connecte
                    
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                        Table of Contents    CHAPTER 1: INTRODUCTION 4  Quick Start Guide.............................................................................................................................4  Technical Support ............................................................................................................................4  Equipment Overview........................................................................................................................5  CHAPTER 2: INSTALLATI
                    
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                        Chapter 1:  Introduction   Quick Start Guide  The following instructions will help you quickly install and configure your Rack-Mount Fail-Safe  Transfer Switch for use on your network.  For detailed information on each step, go to the page number  listed to the right.  1. Mount the Rack-Mount Fail-Safe Transfer Switch ....................................................................7  2. Optimize the transfer thresholds..........................................................................
                    
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                        Equipment Overview   1. The Voltage Selector switch configures the Rack-Mount Fail-Safe Transfer Switch for the installed  operational voltage.    NOTE:  This configures the brownout/over-voltage switching points.    2. The power inlets connect the Rack-Mount Fail-Safe Transfer Switch to the electrical power  sources.  3. LEDs display the input feeds power status.  1 2 3 Figure 1.  Sentry Rack-Mount Fail-Safe Transfer Switch Views  Rack-Mount Fail-safe Transfer Switch Introduction • 5  Installat
                    
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                        Chapter 2: Installation  Before installing your Rack-Mount Fail-Safe Transfer Switch, refer to the following lists to ensure that  you have all the items shipped with the unit as well as all other items required for proper installation.  Standard Accessories  • Mounting hardware:   Two removable flanges with M4 screws.  • Outlet retention clips (208-240V models).  Additional items for Cx-xxx-C20 models:   • Separate power input cords.  • Power input retention bracket hardware (may be installed):
                    
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                        Installing the Power Input Retention Bracket  For units with a total maximum output <30A, it may be  necessary to install the power input retention bracket prior to  mounting the unit within the rack.  To install the power input retention bracket:  1. Remove the two screws attaching the IEC 60320 C19 inlet  to the enclosure.  2. Assemble and attach the retention bracket to the enclosure  as shown.      Figure 2.1 Retention Bracket assembly  Mounting  1. Select the appropriate bracket mounting po
                    
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                        Chapter 3: Operations  Modes of Operation  The Sentry Rack-Mount Fail-Safe Transfer Switch is designed to operate in the following modes:  • Normal  Infeed A provides power to branches A1 & A2 and Infeed B provides power to branches B1 & B2.   Each infeed is monitored individually for voltage and current.  • Input Failure  The equipment powered by the failed input is transferred to the remaining input.  The input current  LED display of the failed input will be blank and the remaining display wi
                    
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                        Chapter 4: Appendices   Appendix A: Technical Specifications  Domestic Models  Model Rated Voltage Input Cordset and Plug (10’) Outlets  1 C-8HF2-C203 208-240V, 50/60Hz IEC 60320 C20 8 IEC 60320/C19  C-8HF2-L303 208-240V, 50/60Hz 2 x NEMA L6-30P, 30A/208V Locking 8 IEC 60320/C19  1 C-16HF1-C20 100-120V, 50/60Hz IEC 60320 C20 16 NEMA 5-20R  C-16HF1-L30 100-120V, 50/60Hz 2 x NEMA L5-30P, 30A/120V Locking 16 NEMA 5-20R  1 C-16HF2-C20 208-240V, 50/60Hz IEC 60320 C20  16 IEC 60320/C13  C-16HF2-L30 20
                    
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                        Regulatory Compliance  Product Safety  Units have been safety tested and certified to the following standards:   • USA/Canada  UL 60950:2003 and CAN/CSA 22.2 No. 60950-1-03  • European Union  EN60950-1:2001  This product is also designed for Norwegian IT power system with phase-to phase voltage 230V.   USA Notification  Note: This equipment has been tested and found to comply with the limits for a Class A digital device,  pursuant to part 15 of the FCC  Rules. These limits are designed to provid
                    
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                        Appendix B: Warranty, Product Registration and Support   Warranty  For Server Technology Warranty information, please see our website.  Product Registration  Registration is your key to special offers and services reserved for Registered Users.  • Excellent Technical Support Services  • Special Update and Upgrade Programs  • Warranty Protection  • Extended Warranty Service  • New Product Information  Register your products online today! Technical Support    Experience Server Technology's FREE SM
                    
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