D-Link DES-1250G Switch User Manual


 
TECHNICAL SPECIFICATIONS
General
Standards IEEE 802.3 10BASE-T Ethernet
IEEE 802.3u 100BASE-TX Fast Ethernet
IEEE 802.3z 1000BASE-SX/LX Gigabit Ethernet
IEEE 802.3ab 1000BASE-T Gigabit Ethernet
IEEE 802.3x Full Duplex Flow Control
Protocol CSMA/CD
Data Transfer Rate Ethernet: 10Mbps (half-duplex), 20Mbps (full-duplex)
Fast Ethernet: 100Mbps (half duplex), 200Mbps (full-duplex)
Gigabit Ethernet: 2000Mbps (full-duplex)
Topology Star
Network Cables 10BASET: 2-pair UTP Cat. 3, 4, 5; up to 100m
100BASE-TX: 2-pair UTP Cat. 5; up to 100m
1000BASE-T: 4-pair UTP Cat. 5; up to 100m
Fiber module: mini-GBIC Fiber module(1000BBASE-SX/LX)
Number of Ports
48 × 10/100Mbps Auto-MDIX RJ45 ports
2 × 10/100/1000Mbps Auto-MDIX RJ45 ports
2 × mini-GBIC fiber slot (disables the Gigabit Copper ports when active)
Physical and Environmental
AC inputs
100-240V AC, 50-60 Hz internal universal power supply
Power Consumption
24Watts (Max)
Temperature
Operating: 0° ~ 40° C (32° ~ 104° F), Storage: -10° ~ 70° C (14° - 158° F)
Humidity Operating: 10% ~ 90%, Storage: 5% ~ 90%
Dimensions 440 x 44 x 310 mm (W x H x D) (17.3 x 1.7 x 12.2 in.)
EMI: FCC Class A, CE Mark Class A, VCCI Class A
Safety: CUL(UL60950)
Performance
Transmits Method:
Store-and-forward
Filtering Address Table:
K entries per device
Packet Filtering/Forwarding Rate:
10Mbps Ethernet: 14,880/pps
100Mbps Fast Ethernet: 148,800/pps
1000Mbps Gigabit Ethernet: 1,488,000/pps
MAC Address Learning:
Automatic update
Transmits Method:
Store-and-forward
RAM Buffer: 1536K Bytes per device