User manual NETGEAR GS504T Installation Guide

[. . . ] However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: · Reorient or relocate the receiving antenna. · Increase the separation between the equipment and receiver. · Connect the equipment into an outlet on a circuit different from that which the receiver is connected. [. . . ] When the switch is connected and operating, refer to Table 2-1 "LED Descriptions" for information about the LEDs and their activity. installation 4-3 GS504T. Manual. FINAL 6/2/00 12:49 PM Page 19 CHAPTER 5: TROUBLESHOOTING This chapter provides information about troubleshooting the NETGEAR Model GS504T Copper Gigabit Switch. Table 5-1 lists symptoms, causes, and solutions of possible problems. Table 5-1. Troubleshooting Information Symptom Power LED is off. Cause No power is received at the switch. Solution Check the power cord connections for the switch and the connected device. Make sure all cables used are correct and comply with Ethernet specifications. 1000M or 100M LED is off or intermittent. Check the crimp on the connectors and make sure that the plug is properly inserted and locked into the port at both the switch and the connecting device. Make sure all cables used are correct and comply with Ethernet specifications. Check for a defective adapter card, cable, or port by testing them in an alternate environment where all products are functioning. File transfer is slow or performance degradation is a problem. A segment or device is not recognized as part of the network. Half- or full-duplex setting on the switch and the connected device are not the same. One or more devices are not properly connected, or cabling does not meet Ethernet guidelines. Collisions are occurring on the connected segment. Make sure the remote link partner is set to auto negotiate. Verify that the cabling is correct. Be sure all cable connectors are securely positioned in the required ports. Equipment may have been accidentally disconnected. FDX/COL LED is blinking yellow excessively. Some collisions are normal when the connection is operating in half-duplex mode. Recheck the link partner settings. troubleshooting 5-1 GS504T. Manual. FINAL 6/2/00 12:49 PM Page 21 APPENDIX A: TECHNICAL SPECIFICATIONS This appendix provides technical specifications for the NETGEAR Model GS504T Copper Gigabit Switch. Network Protocol and Standards Compatibility IEEE 802. 3ab 1000BASE-T IEEE 802. 3u 100BASE-TX IEEE 802. 3x flow control Data Rate 1000 Mbps with PAM5 encoding Interface 1000BASE-T Gigabit Ethernet RJ-45 connector Power Consumption 65 W Input Voltage (Power Adapter) 100­240 V AC Physical Specifications Dimensions: Weight: 13. 0 x 1. 7 x 8. 0 in. ; 33. 0 x 4. 3 x 20. 7 cm 5. 3 lb; 2. 3 kg technical specifications A-1 GS504T. Manual. FINAL 6/2/00 12:49 PM Page 22 Environmental Specifications Operating temperature: Operating humidity: 0 to 40º C (32 to 104º F) 90% maximum relative humidity, noncondensing Electromagnetic Compliance CE mark, commercial FCC Part 15 Class A VCCI Class A EN 55022 (CISPR 22) Class A, EN50082-1 C-Tick Safety Agency Approvals UL Listed (UL 1950), cUL TUV Licensed (EN 60 950), IEC 95 Performance Specifications Frame filter rate: Frame forward rate: Network latency (using 64-byte packets): Address database size: Addressing: Queue buffer: 1, 480, 000 frames/second maximum 1, 480, 000 frames/second maximum 30 microseconds maximum 8, 000 MAC addresses 48-bit MAC address 2 MB memory per port technical specifications A-2 GS504T. Manual. FINAL 6/2/00 12:49 PM Page 23 APPENDIX B: CONNECTOR PIN ASSIGNMENTS This appendix provides information about the RJ-45 plug and the RJ-45 connector used for the NETGEAR Model GS504T Copper Gigabit Switch. RJ-45 Plug and Vista RJ-45 Connector In a Fast Ethernet network, it is important that all 100BASE-T certified Category 5 cabling use RJ-45 plugs. The RJ-45 plug accepts 4-pair UTP or shielded twisted pair (STP) 100 ohm cable and connects into the vista RJ-45 connector. The vista RJ-45 connector is used to connect stations, hubs, and switches through UTP cable; it supports 10 Mbps, 100 Mbps, or 1000 Mbps data transmission. [. . . ] Near End Cross Talk (NEXT) This is a measure of the signal coupling from one wire to another, within a cable assembly, or among cables within a bundle. NEXT measures the amount of cross-talk disturbance energy that is detected at the near end of the link--the end at which the transmitter is located. NEXT measures the amount of energy that is "returned" to the sender end. The factors that affect NEXT and cross talk are exactly the same as outlined in the Return Loss section. The cross-talk performance is directly related to the quality of the cable installation. cabling guidelines C-6 GS504T. Manual. FINAL 6/2/00 12:49 PM Page 31 Patch Cables When installing your equipment, replace old patch panel cables that do not meet Category 5e specifications. As pointed out in the NEXT section, this near end piece of cable is critical for successful operation. [. . . ]