PoE Ports
4 x 100M PoE ports
Non-PoE Ports
1 x 10/100M Ethernet port
PoE Standard
Supports IEEE802.3at/af
PoE power budget
35W
Mac Address Table
1K
Switching Capacity
1 Gbps
Packet Forwarding Rate
0.744 Mpps
Shell
Metal material, fan-free design
Key specs
- 4 × 100 Mbps PoE ports (802.3af/at)
- 1 × 100 Mbps uplink port
- PoE budget 35 W
- Long-range PoE up to 250 m (820 ft)
- 1K MAC address table
- 48 VDC power
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Network Parameters |
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Port Number |
4 x 100M PoE ports |
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Port Type |
RJ45 port |
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Standard |
IEEE802.3, IEEE802.3u, IEEE802.3x |
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Processing type |
Store and forward switching |
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Ports with high priority |
1 to 2 ports |
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Ports for long distance transmission |
1 to 4 ports |
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MAC Address Table |
1 K |
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Exchange capacity |
1 Gbps |
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Packet Forwarding Rate |
0.744 Mpps |
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Internal cache |
448 Kbits |
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PoE Power Supply |
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Power supply standard |
IEEE 802.3af, IEEE 802.3at |
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Power supply cable core |
Supports 8 core power supply |
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PoE port |
1 to 4 |
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Max. port power |
30 W |
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Max. machine power |
35 W |
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Mechanical Structure |
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Shell |
Metal material, fan free design |
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Weight |
0.2 kg (0.4 lb) |
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Dimensions (L × H × D) |
105 mm × 27.6 mm × 83.1 mm (4.1" × 1.1" × 3.3") |
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Environment |
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Operating temperature |
0 C to 40 C |
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Storage temperature |
–40 C to 85 C |
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Relative humidity |
5% to 95% (no condensation) |
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Power Supply |
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Power supply specification |
48 VDC, 0.8 A |
Know before you buy
Quick answers about the DS-3E0105P-E/M, and how it compares.
How many cameras can this PoE switch power?
Two limits apply: the number of PoE ports, and the total PoE budget in watts. Add up the maximum power of each camera from its datasheet and keep about 20% spare. Example: 16 cameras at 6 W each need 96 W, plus 20% is about 115 W, so a switch with a 125 W budget or more is right. A PoE port (802.3af) gives up to 15.4 W and a PoE+ port (802.3at) up to 30 W. PTZ cameras and cameras with heaters, strong IR or strobe lights need PoE+ or Hi-PoE (802.3bt). Not sure? Send us your camera list and we size it for you.
What is long-range PoE, up to 300 m?
A normal network cable run is limited to 100 m (330 ft). In long-range (extend) mode the switch lowers the port speed to 10 Mbps, so data and power can travel up to 300 m (1,000 ft) on one good quality copper Cat6 cable. 10 Mbps is enough for one camera, so use this mode for one camera per port, for example at a far gate or along a boundary wall. For longer runs use fiber with SFP modules.
Unmanaged, smart or managed switch: which one do I need?
Unmanaged switches are plug and play, with nothing to set up: good for small systems. Smart (web managed) switches add a web page and app view for VLANs, port status, cable checks and, on many models, PoE watchdog, so you can find and fix problems from your desk. Managed (Layer 2+ or Layer 3) switches add full control, routing and ring protection for large sites, campuses and city projects. For most CCTV jobs with 8 to 48 cameras, a smart PoE switch is the best value. Ask us if you are not sure.