Magnum Quad-Series Fiber Switches | Installation and User Guide (06/03) |
An address-aging algorithm causes least-used addresses to fall out in favor of new frequently-used addresses. To reset the address buffer, cycle power down-and-up.
4.2Status LEDs
For all Magnum Quad-Series models :
PWR | : Power LED, ON when external power is applied to the unit. |
LK | : Steady ON, Link status for 10 Mbps and 100Mbps operation. |
ACT | : ON with port activity for 10 Mbps and 100Mbps operation. |
F/H | : Full / Half duplex LED, ON when the port is running full |
| duplex, OFF for half duplex. |
100/10 | : Speed LED, ON when the speed is 100Mbps , OFF when the |
| speed is 10 Mbps |
4.3Manual Switches for Up-link push-button, for RJ-45 quad-port only
Figure 4.3 : Up-link push-button on RJ-45 quad-port
The module has a manual Up-link push-button, located on the front panel next to 10/100Mb RJ-45 Quad-port # 1 which it controls. It enables the port’s cable to either connect to a user station node (push in) or to be cascaded (push out) to a 10/100Mb repeater or switching hub in the network. Verify proper Up-link push-button position by noting Port 1’s LK (link) LED status, which is illuminated when a proper link is made.
4.4Auto-negotiation, for Fast Ethernet copper ports
The Magnum Quad-Series Fast Ethernet copper ports can be set for either fixed
100Mb speed or for 10/100 F/H N-way auto-negotiation per the IEEE802.3u standard. The selection is made via an internal jumper (see Section 3.4 for jumper-setting instructions). The factory default setting is for auto-negotiation. At 100Mb-fixed speed, the user may select half- or full-duplex mode by internal jumpers for each RJ-45 port separately.
One frequently-used application for the Magnum Quad-Switch copper ports is to connect one of them using a fiber media converter to another Switch in the network backbone, or to some other remote 100Mb device. In this case, it is desirable to operate the fiber link at 100Mb speed, and at either half- or full duplex mode depending on the capabilities of the remote device. Standard commercially-available Fast Ethernet media
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