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Lenovo
Auto-Sensing 10/100 Ports
The DES-1005A uses auto-sensing 10/100 Mbps ports, allowing a small workgroup to flexibly connect to Ethernet and Fast Ethernet
devices to create an integrated network. These ports detect the network speed and auto-negotiate between 10BASE-T and
100BASE-TX, as well as between full and half-duplex, allowing you to get the maximum speed possible for each device connected to your network.
Auto MDI/MDIX Crossover
All ports support automatic MDI/MDIX crossover, eliminating the need for crossover cables or uplink ports. Each port can be plugged
directly to a server, hub, router, or switch using regular straight-through twisted-pair Ethernet cables.
Flow Control for Secure Transmission
802.3x flow control on each port minimizes dropped packets when the port's receiving buffer is full. This gives you a more reliable
connection for all of your connected devices.
Key Features
- Inexpensive Fast Ethernet solution for Home/SOHO
- Five 10/100 Mbps Fast Ethernet ports
- Auto MDI/MDIX crossover for all ports
- Store-and-forward switching scheme
- Full/half-duplex for Ethernet/Fast Ethernet speeds
- IEEE 802.3x Flow Control
- Plug-and-play installation
- RoHS compliant
Switching Fabric
- 1.0 Gbps switching fabric
Standards
- IEEE 802.3 10BASE-T Ethernet (twisted-pair copper)
- IEEE 802.3u 100BASE-TX Fast Ethernet (twisted-pair copper)
- ANSI/IEEE 802.3 NWay auto-negotiation
- IEEE 802.3x flow control
Protocol
- CSMA/CD
Data Transfer Rates
- Ethernet:
- 10 Mbps (half duplex)
- 20 Mbps (full duplex)
- Fast Ethernet:
- 100 Mbps (half duplex)
- 200 Mbps (full duplex)
Topology
- Star
Media Interface Exchange
- Auto MDI/MDIX adjustment for all ports
Network Cables
- 10BASE-T:
- UTP CAT 3/4/5/5e (100 m max.)
- EIA/TIA-586 100-ohm STP (100 m max.)
- 100BASE-TX:
- UTP CAT 5/5e (100 m max.)
- EIA/TIA-568 100-ohm STP (100 m max.)
LED Indicators
- Per port:
- Link/Activity
- Per device:
- Power
Transmission Method
- Store-and-forward
MAC Address Table
- 2K entries per device
MAC Address Learning
- Automatic update
Packet Filtering/Forwarding Rates
- Ethernet: 14,880 pps per port
- Fast Ethernet: 148,800 pps per port
RAM Buffer
- 48 KB per device
DC Input
- External 5 V / 1 A power adapter
Power Consumption
- Power On (Standby):
- DC input: 0.4 watts
- AC input: 0.9 watts
- Maximum:
- DC input: 2.18 watts
- AC input: 2.5 watts
Heat Dissipation
- Power On (Standby):
- AC input: 2.728 BTU/h
- Maximum:
- AC input: 8.528 BTU/h
Operating Temperature
- 0 to 50 ˚C (32 to 122 ˚F)
Storage Temperature
- -10 to 70 ˚C (14 to 158 ˚F)
Operating Humidity
- 10% to 90% RH non-condensing
Storage Humidity
- 5% to 90% RH non-condensing
Device Dimensions (W x D x H)
- 125.3 x 83.4 x 29.1 mm (5.0 x 3.3 x 1.2 inches)
Certifications
- FCC Class B
- ICES-003 Class B
- CE Class B
- C-Tick Class B
- VCCI Class B
- cUL
- CB
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