Dell PowerConnect 5448 User's Guide - Page 26

PowerConnect Back Panel Port Description The device back panel contains connectors for power, as illustrated in the Figure 2-2. Figure 2-2. Device Back Panel On the device back panel are two power supply connectors and an RS-232 Console port. For general use there is an AC Power Supply connector which is connectable to either 110V or 220V power supplies. The DC Power Supply connector is to connect a Redundant Power Supply (RPS) to be activated automatically in the event of an AC power supply outage. Device Ports SFP Ports The Small Form Factor Plugable (SFP) port is a hot swappable optical modular transceiver that offers high speed and compactness, which is designated as 1000Base-SX or LX. RS-232 Console Port One DB-9 connector for a serial terminal connection which is used for debugging, software download, etc. The default baud rate is 9600 bps. The baud rate can be configured from 2400 bps up to 38400 bps. Figure 2-3. Console Port Combo Ports A combo port is a single logical port with two physical connections: • A RJ-45 connection for Twisted Pair copper cabling • A SFP connection for various fiber-based modules Only one of the two physical connections of a combo port may be used at any one time. Port features and available port controls are determined by the physical connection used. The system automatically detects the media used on a combo port, and utilizes this information in all operations and control interfaces. 26 Hardware Description