IBM 2498B24 User Guide - Page 60

Data transmission ranges Table 14 provides the data transmission ranges for different cable types and port speeds. Table 14. Data transmission ranges Port speed Cable size (microns) 1 Gbps 50 62.5 9 2 GGbps 50 62.5 9 4 Gbps 50 62.5 9 8 Gbps 50 62.5 9 Short wavelength (SWL) 500 m (1,640 ft) 300 m (984 ft) N/A 300 m (984 ft) 150 m (492 ft) N/A 150 m (492 ft) 70 m (230 ft) N/A 150 m (492 ft) 21 m (69 ft) N/A Long wavelength (LWL) N/A N/A up to 10 km (6.2 mi) N/A N/A N/A N/A N/A N/A N/A N/A 10 km Fibre Channel port specifications The Fibre Channel ports in the switch are compatible with SWL, LWL, and ELWL SFPs. The strength of the signal is determined by the type of SFP in use. The ports are capable of operating at 1, 2, 4 and 8 Gbps, and are able to autosense the highest speed capable for all attached devices. The ports meet all required safety standards. Serial port specifications The serial port is located on the port side of the switch as a RJ-45 connector, designed to connect to a DTE port. Use the serial port to connect to a computer workstation to configure the switch IP address without connecting to the fabric. The serial port's parameters are 9600 baud, 8 data bits, no parity, 1 stop bit, and no flow control. Power supply specifications The power supply is universal and capable of functioning worldwide without using voltage jumpers or switches. It meets IEC 61000-4-5 surge voltage requirements and is autoranging in terms of accommodating input voltages and line frequencies. The power supply has its own built-in fan for cooling, pushing the air toward the port side of the switch. The power supply is not removable. Table 15 lists the power supply specifications for the switch. Table 15. Switch power supply specifications Specification Value Inlet C13 Maximum output from the power supply 75 watts 36 SAN24B-4 Express Installation, Service, and User Guide