MRV Communications MR2228-S2C - Manual (Page 7)

3
Stacking Ports
The unit provides two stacking ports that provide a 1 Gbps stack backplane
connection. Up to eight switches can be connected together using Category 5
Ethernet cables (purchased separately). The Master button enables one switch in
the stack to be selected as the master. This is the unit through which you manage
the entire stack.
The stacking ports can also be used as normal Ethernet ports in standalone mode
by pressing the Uplink button.
Figure 1-2. Stacking Ports
Port and System Status LEDs
The MR2228-S2C base unit includes a display panel for key system and port
indications that simplify installation and network troubleshooting. The LEDs, which
are located on the front panel for easy viewing, are shown below and described in
the following tables.