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When not connected to a fiber cable, the cover should be replaced to protect the optics. 2. Check that the fiber terminators are clean. Dirty fiber terminators on fiber optic cables will impair the quality of the light transmitted through the cable and lead to degraded performance on the port. 3. Connect one end of the cable to the MT-RJ port on the switch and the other end to the MT-RJ port on the other device. Since MT-RJ connectors are keyed, the cable can be attached in only one orientation. 4. As each connection is made, check the Link LED on the switch’s front panel for the corresponding port to be sure that the connection is valid SC Connections Each single-imode fiber optic port requires 9/125 micron multimode fiber optic cabling with an SC connector at both ends. Each multimode fiber optic port requires 50/125 or 62.5/125 micron multimode fiber optic cabling with an SC connector at both ends. If you need to connect to a device with 62.5/125 micron cable that has ST-type connectors, Accton provides an optional SC-ST Converter (Part Number: ST5002). Reset Master On Off Up Down Stacking VS2512A Console T ig er S w it ch 10/100 6724L 3 Switch Stack Reset Master On Off Up Down Stacking VS2512A Console T ig er S w it ch 10/100 6724L 3 Reset Master On Off Up Down Stacking VS2512A Console T ig er S w it ch 10/100 6724L 3 VDSL Switch -VS2512A Reset Master On Off Up Down Stacking VS2512A 100-240V ~ 50-60 Hz 1A Console T ig er S w it ch 10/100 6724L 3 T ig er S w it ch 10/100 6724L 3 Splitter Stack T ig er S w it ch 10/100 6724L 3 Line VDSL Splitter -VM2524 VM2524 Line VDSL Splitter -VM2524 VM2524 Patch Panel To end users To ISP (Internet) PBX Telephone Line from Central Office T ig er S w it ch 10/100 6724L 3 TX RX VM2512A-1SX-SC-M 1000BASE-SX Multimode Module Stacking Power Diag 2 3 4 5 6 7 8 9 10 11 12 VDSL 1 Activity Link Activity Link/Speed 1 2 3 4 Ethernet Stacking Power Diag 2 3 4 5 6 7 8 9 10 11 12 VDSL 1 Activity Link Activity Link/Speed 1 2 3 4 Ethernet Stacking Power Diag 2 3 4 5 6 7 8 9 10 11 12 VDSL 1 Activity Link Activity Link/Speed 1 2 3 4 Ethernet Stacking Power Diag 2 3 4 5 6 7 8 9 10 11 12 VDSL 1 Activity Link Activity Link/Speed 1 2 3 4 Ethernet 100-240V ~ 50-60 Hz 1A 100-240V ~ 50-60 Hz 1A 100-240V ~ 50-60 Hz 1A Expansion Module Expansion Module Expansion Module Expansion Module VDSL Switch -VS2512A VDSL Switch -VS2512A VDSL Switch -VS2512A Y cables Making Network Connections Caution: This switch uses lasers to transmit signals over fiber optic cable. The lasers are compliant with the requirements of a Class 1 Laser Product and are inherently eye safe in normal operation. However, you should never look directly at a transmit port when it is powered on. 1. Remove and keep the SC port’s rubber cover. When not connected to a fiber cable, the rubber cover should be replaced to protect the optics. 2. Check that the fiber terminators are clean. You can clean the cable plugs by wiping them gently with a clean tissue or cotton ball moistened with a little ethanol. Dirty fiber terminators on fiber cables will impair the quality of the light transmitted through the cable and lead to degraded performance on the port. 3. Connect one end of the cable to the SC port on the switch and the other end to the SC port on the other device. Since SC connectors are keyed, the cable can be attached in only one orientation. Expansion ModuleSC fiber connector Figure 4-3. Making SC Port Connections 4. As a connection is made, check the Link LED on the switch corresponding to the port to be sure that the connection is valid. Note: If you use the optional SC-ST Converter, be sure to connect the converter’s Tx (Rx) port to the Rx (Tx) port on the other device. 1000BASE-SX, 1000BASE-LX and 1000BASE-LH fiber optic ports operate at 1 Gbps full duplex, with auto-negotiation of flow control. 100BASE-FX connections operate at 100 Mbps, full duplex, with auto-negotiation of flow control. Appendix A: Troubleshooting Diagnosing Switch Indicators The VDSL Switch-VS2512A can be easily monitored through panel indicators to identify problems.The table below describes common problems you may encounter and possible solutions. If the solutions in the table fail to resolve the problem contact Accton Technical Support for advice. Symptom Cause Solution POWER indicator Power outlet, power• Check the power outlet by plugging in another does not light upcord, or internal power device that is functioning properly. after power on. supply may bedefective. • Check the power cord with another device. If these measures fail to resolve the problem, havethe unit’s power supply replaced by a qualified Accton distributor. ETHERNET LINK Network cable or • Verify that the switch and attached device are indicator does not Ethernet device powered on. light up after making attached to this port a connection. may be defective. • Be sure an Ethernet cable is plugged into both the switch and attached device. • Verify that the proper cable type is used and ...

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