P/N 9032790-01 Page 4 of 4CONNECTING THE DEVICE TO A 48/60 VDC POWER SOURCETo connect the device to a 48/60 Vdc power source, face the rear of the device, then refer to Figure 6 and proceed asfollows:Figure 6 Connecting 48/60 Vdc Power Source to the Power Supply1. Connect the ground terminal of the dc input power strip to an appropriate earth ground.2. Refer to Figure 6 for the proper connections to a 48/60 Vdc power source. Then connect the output leads of the48/60 Vdc power source being used to the negative (-) and positive (+) terminals on the dc input power strip.3. Repeat steps 1 and 2 to connect a 48/60 Vdc power source to the other dc input power strip on the device.4. Restore power from the 48/60 Vdc power sources. If an alarm sounds, refer to the following note.5. Press the on/off power switch of each power switch to the on position.6. Follow the instructions provided in your SmartSwitch 2200 user’s guide to install, power-up, and connect the deviceto the network.GETTING HELPFor additional support, contact Cabletron Systems using one of the following methods: 1999 by Cabletron Systems, Inc., P.O. Box 5005, Rochester, NH 03866-5005All Rights Reserved. Printed in the United States of America.Order Number: 9032790-01 January 1999Cabletron Systems is a registered trademark and SmartSwitch is a trademark of Cabletron Systems, Inc.All other product names mentioned in this document may be trademarks or registered trademarks of their respective companies.The information in this document is proprietary and is not to be copied in any form, or by any means, without the written consent of Cabletron Systems.To prevent injury or damage to the equipment, remove power from the 48/60 Vdc power sources beforeproceeding with the following steps and do not restore the 48/60 Vdc power until instructed to do so.NOTEIf a dc power supply sounds an audible alarm, there is a polarity reversal. Turn off the 48/60 Vdc powersource to that power supply, then reverse the positive and negative leads to the dc input power strip of thatpower supply. Restore power from the 48/60 Vdc power source. If the alarm sounds again, turn off the48/60 Vdc power source and call for technical support. Refer to Getting Help for instructions.World Wide Web http://www.cabletron.com/Phone (603) 332-9400Internet mail support@cabletron.comFTP ftp://ftp.ctron.com/LoginanonymousPasswordyour email addressTo send comments or suggestions concerning this document, contact theCabletron Systems Technical Writing Department via the followingemail address: TechWriting@cabletron.comMake sure to include the document Part Number in the email message.2790-01ON/OFFDC Input Power Strip48 or 60 VdcPower Source+- EarthGround