Enterasys Networks manual Table A-1 B3G124-24P and B3G124-48P Specifications, Mtbf

Switch Specifications

Table A-1 B3G124-24P and B3G124-48P Specifications (continued)

Item	Specification
B3G124-48P
RJ45 ports 1 through 48	Forty-eight, 10BASE-T/100BASE-TX/1000BASE-T compliant ports
	with auto-sensing and auto-negotiation via RJ45 connectors.
	These ports also support 802.3af PoE connections.
SFP ports 45 through 48	Four slots that support optional Mini-GBICs for 1000BASE-FX
	fiber-optic connections and 1000BASE-T copper connections.
	When an SFP transceiver (Mini-GBIC) installed in ports 45 through
	48 establishes a link, the associated fixed front panel RJ45
	10BASE-T/100BASE-TX/1000BASE-T port is disabled.
Processors/Memory
Processor	MPC8245, 400 MHz processor
Dynamic Random Access	256 MB
Memory (DRAM)
FLASH Memory	32 MB
Physical
Dimensions	4.4 H x 44.1 W x 36.85 D (cm)
	1.7 H x 17.4 W x 14.5 D (in.)
Approximate Weight
B3G124-24P	Gross:	8.42 kg (18.56 lb) (shipping carton containing one module)
	Net:	6.24 kg (13.76 lb) (one module without packaging)
B3G124-48P	Gross:	8.74 kg (19.26 lb) (shipping carton containing one module)
	Net:	6.56 kg (14.46 lb) (one module without packaging)
Predicted hours for Mean	Calculated following Bellcore TR-331 Issue 6 standard, at room
Time Between Failures	temperature of 25°C.
(MTBF)
B3G124-24P	104,732 hours
B3G124-48P	91,995 hours
Heat Dissipation (maximum)
B3G124-24P	481 W
B3G124-48P	550 W

A-2 Specifications