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Industrial PoE switches that deliver power over UTP or STP cable not
only save significant cost and space, but also increase power
utilization and centralize power management. The JetNet 3705 equips with
4 PoE injector switch ports, with each port delivering power up to 15.4
watts in maximum,and one 10/100Base TX Up-link port transfering data to
the remote end. The JetNet 3705 conforms to IEEE 802.3af Power over
Ethernet (PoE) standard. The Power Over Ethernet technology can power up
PoE enabled powered devices in full capability, e.g. IP surveillance
camera, wireless Access Point, VoIP phone set, POS system, industrial
sensors, controllers and security card reader. Using an external 48VDC
power supply, JetNet 3705 enables power and data transmission to be
pumped out over the same UTP or STP cable in the four PoE ports.
To meet the requirements for harsh environment, JetNet 3705 uses a
robust aluminum case, offering IP30 protection, and supports one alarm
relay output . The JetNet3705 provides standard industrial terminal
block for the power and relay alarm contact output to alarm any port
break or power failure. For the user's convenience, it also provides a
DC jack for the traditional AC/DC power adapter.
Industrial-grade IEEE 802.3af Compliant Power Source Switch
JetNet
3705 is in compliance with IEEE 802.3af standard and supports Power
Sourcing Equipment (PSE) function. It delivers power through the spare
pairs (4, 5, 7, 8) of standard Ethernet CAT5 cable and transmits data
through the traditional pairs (1, 2, 3, 6). The JetNet3705 PoE ports
provide PoE auto detection of the link partner to deliver the exact
power to the PD. If the link partner is not a PD or the link cable is
short, or the device is broken, it will executes a series of standard
procedures to avoid sending out a huge power to damage the linked
device.
Secure Power Protection
JetNet 3705 is designed to endure harsh working environment and
severe operating temperature. To successfully deliver reliable power,
JetNet 3705 builds in strong protection againest abnormal working
conditions including 2KV power surge protection from the power input and
over-voltage protection to keep PoE output voltage in between DC 44 ~
57V, 350mA over-load current and 450 mA short current protection. The
JetNet3705 PoE function is fully in compliant with IEEE 802.3af
standard, therefore all PoE protection measures are put into practice in
the JetNet3705 series.
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IEEE 802.3 10Base-T Ethernet
IEEE 802.3u 100Base-TX Fast Ethernet
IEEE802.3x Flow Control and Back-pressure
IEEE 802.3af Power Over Ethernet
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Store and Forward architecture | |
| Interface |
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5 x RJ-45 for 10/100 Base-TX, Auto MDI/MDI-X | |
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10Base-T: 4-pair UTP/STP Cat. 3, 4, 5 cable, EIA/TIA-568 100-ohm(100m)
100Base-TX: 4-pair UTP/STP Cat. 5 cable, EIA/TIA-568 100-ohm(100m) | |
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Power x 3 (Green), Fault x 1(Red)
PoE x 4(Green)
Link/Activity x 5 (Green on / Green Blinking)@100Mbps, (Yellow on / Yellow Blinking)@10Mbps | |
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Dry Relay output for port and power event alert. | |
| Performance |
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14,880 pps for Ethernet
148,800 pps for Fast Ethernet | |
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64 bytes to 1522 bytes (with VLAN tag) | |
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| Power Requirements |
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Input Voltage:
48VDC or -48VDC, dual inputs in terminal block connection
AC /DC Power Adapter 48VDC/ 1.6A (option)
Power input connector:
Two Power inputs via the Terminal Block (12 ~24 AWG power cable)
One DC jack for AC/D power adapter.
Reverse Polarity Protection: Present | |
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6.5Watts without PD loading
70Watts with PD full loading | |
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Port 1~4
Per port 15.4W ability.
RJ-45 pin assignment: TX (3,6), RX (1,2), V+ (4,5), V-(7,8)
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Switch 1~5: Port 1~5 link down alarm Enable/Disable
Switch 6: Power fault alarm Enable/Disable. | |
| Mechanical |
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DIN-rail kit and wall mounting | |
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IP-31 protection, Aluminum case, Fanless design | |
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33.8 mm (H) x 164.8 mm(W) x 108 mm (D) | |
| Environmental |
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5% to 95% (Non-condensing) | |
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| Regulatory Approvals |
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FCC Class A, EN55022 Class A | |
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EN61000-4-2, EN61000-4-3, EN61000-4-4, EN61000-4-5,
EN61000-4-6, EN61000-4-8, EN61000-4-11 | |
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JetNet 3705 Industrial 5-port PoE Power Source Ethernet Switch
Includes:
- 4 x 10/100 Base-TX PoE Port, 1 x 10/100 Base TX
- Quick Installation Guide
- Documentation CD-ROM
- DIN-Rail mounting kit
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