GSM7248 MANUAL PDF

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All rights reserved. Technical Support Please refer to the support information card that shipped with your product. For other countries, see your Support information card.

E-mail: support netgear. 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. Warning: This is a Class A product. In a domestic environment, this product may cause radio interference, in which case the user may be required to take appropriate measures. Additional Troubleshooting Suggestions A-1 Technical Specifications A-3 Appendix B Related Documents vi v1. The information in this manual is intended for readers with intermediate computer and Internet skills.

Tip: If your printer supports printing two pages on a single sheet of paper, you can save paper and printer ink by selecting this feature. It includes powerful management features that you can use to eliminate bottlenecks, boost performance, and increase productivity. Table The fan has failed. No link is established on the port.

A valid Mbps link is established on the port. The port is sending or receiving packets at Mbps. A valid or 10 Mbps link is established on the port. Also, do not block cooling vents. If the system gets wet, contact technical support or your trained service provider. Be sure that nothing rests on any cables. Package Contents The switch is packed and shipped separately. To prevent static damage, discharge static electricity from your body before you touch any of the electronic components, such as the microprocessor.

You can do so by periodically touching an unpainted metal surface on the switch. Select a location. Install the switch. Check the installation. Apply power and check the LEDs. Site Requirements for Switch Location continued Requirements Ventilation Do not restrict airflow by covering or obstructing air inlets on the sides of the switch.

Keep at least 2 inches 5. Be sure that there is adequate airflow in the room or wiring closet where you will install the switch. Tighten the screws with a No. Align the bracket and rack holes. Use two pan-head screws with nylon washers to fasten each bracket to the rack. Checking the Installation Before you apply power, perform the following checks: 1.

Inspect the equipment thoroughly. SFP modules are sold separately. Press firmly to ensure that the module seats into the connector. To connect a redundant power supply RPS unit to the switch, first turn off the switch. When the power is off, you can remove the cover plate and connect the RPS unit to the switch. After all connections are completed, apply power to the switch. Connect the null-modem cable to the console port on the rear of the switch.

Console port Figure 2. Connect the other end of the cable to a workstation or terminal. If you attached a workstation, start a terminal emulation program. Chapter 3 Troubleshooting Troubleshooting Chart The following table lists symptoms, causes, and solutions of possible problems.

No power is received Check the power cord connections for the switch at the switch and the connected device. Make sure that all cables used are correct and comply with Ethernet specifications. Link LED is off or intermittent. Port connection is not working. Troubleshooting Chart continued Problem Cause Solution A segment or device is not recognized as part of the network.

One or more devices are not properly connected, or cabling does not meet Ethernet guidelines. Verify that the cabling is correct. Be sure that all connectors are securely positioned in the required ports.

Equipment might have been accidentally disconnected. Default Settings The following table lists the factory default settings for the switches. You can use the RST reset button to return a switch to its factory default settings. Table A Page 6 Additional Troubleshooting Suggestions Page 25 Chapter 3 Troubleshooting Troubleshooting Chart The following table lists symptoms, causes, and solutions of possible problems.

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