TP-Link T3700G-28TQ T3700G-28TQ V1 UG - Page 21
Rear Panel, Status, Indication, 100/1000Mbps RJ45 Ports, SFP Ports, Unit ID LED, Stack
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LED M1, M2 Status On Flashing Off Indication An SFP+ transceiver/cable is connected to the corresponding port of the Interface Card, and it is connected to a 10Gbps device, but no activity A 10Gbps device is connected to the corresponding port of the Interface Card and transferring data An SFP+ transceiver/cable is connected to the corresponding port of the Interface Card, but it is not connected to a device, or no SFP+ transceiver/cable is connected to the Interface Card, or no Interface Card is connected 10/100/1000Mbps RJ45 Ports: Port 1-24, designed to connect to a device with the bandwidth of 10Mbps, 100Mbps or 1000Mbps. Each has a corresponding 10/100/1000Mbps LED. SFP Ports: Port 21F-24F, designed to install the SFP transceiver. These four SFP transceiver slots are shared with the associated RJ45 ports. The associated two ports are referred as a "Combo" port, which means they cannot be used simultaneously, otherwise only RJ45 port works. SFP+ Ports: Port 25-26, designed to install the 10Gbps SFP+ transceiver/cable. T3700G-28TQ also provides an interface card slot on the rear panel to install the expansion card (TX432 of TP-LINK for example). If TX432 is installed, you get another two 10Gbps SFP+ ports. Unit ID LED: Designed to display the stack unit number of the switch. For the switch that does not join any stack system, it displays its default unit number. To modify the default unit number, please logon to the GUI of the switch and go to Stack→Stack Management→Switch Renumber page. 2.3.2 Rear Panel The rear panel of T3700G-28TQ is shown as the following figure. Figure 2-2 Rear Panel (1) 10