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 3705f equips with 4 PoE injector switch ports, with each port delivering power up to 15.4 watts in maximum, and one 10/100Base fiber Up-link port transfering data to the remote end. The JetNet 3705f 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 3705f 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 3705f uses a robust aluminum case, offering IP30 protection, and supports one alarm relay output . The JetNet3705f 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 3705f 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 JetNet3705f 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 3705f is designed to endure harsh working environment and severe operating temperature. To successfully deliver reliable power, JetNet 3705f 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 JetNet3705f PoE function is fully in compliant with IEEE 802.3af standard, therefore all PoE protection measures are put into practice in the JetNet3705 series.

Data Sheet

Technology
Standard	IEEE 802.3 10Base-T Ethernet IEEE 802.3u 100Base-TX Fast Ethernet IEEE 802.3u 100Base-FX Fast Ethernet Fiber IEEE802.3x Flow Control and Back-pressure IEEE 802.3af Power over Ethernet
Processing	Store and Forward architecture
Interface
Number of Ports	4 x 10/100 Base-TX, Auto MDI/MDI-X, 1 x 100 Base-FX
Network Cable	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)
Optical Cable:	SC(Multi Mode): 50/125um or 62.5/125um SC(Single Mode): 9/125um Wavelength: 1310nm(Multi mode/ Single mode) Available distance: 2km(Multi-mode)/ 30km(Single mode) Min. TX power: -19 dBm(Multi-mode)/ -15 dBm(Single mode) Max. TX power: -14 dBm(Multi-mode)/ -8 dBm(Single mode) Sensitivity: -31 dBm(Multi-mode)/ -34 dBm(Single mode)
LED Indicators	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
Alarm:	Dry Relay output for port break and power fault
Performance
Transfer Rate	14,880 pps for Ethernet 148,800 pps for Fast Ethernet
Transfer packet size	64 bytes to 1522 bytes (with VLAN tag)
MAC Address	1K MAC address table
Memory Buffer	512Kbits
Back-plane	3.2 Gbps
Power Requirements
Power Supply	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
Power Consumption:	6.5Watts without PD loading 70Watts with PD full loading
PoEPort :	Port 1~4 RJ-45 pin assignment: TX (3,6), RX (1,2), V+ (4,5), V-(7,8)
PoE Ports Output Voltage:	44 to 57VDC
DIP Switch:	Switch 1~5: Port 1~5 link down alarm Enable/Disable Switch 6: Power fault alarm Enable/Disable.
Mechanical
Installation	DIN-rail kit and wall mounting
Casing	IP-31 protection, Aluminum case, Fanless design
Dimensions	33.8 mm (H) x 164.8 mm(W) x 108 mm (D)
Environmental
Operating Temperature	-10¢XC~70¢XC
Operating Humidity	5% to 95% (Non-condensing)
Storage Temperature	-40 to 85¢XC
Regulatory Approvals
EMI	FCC Class A, EN55022 Class A
EMC	EN61000-4-2, EN61000-4-3, EN61000-4-4, EN61000-4-5, EN61000-4-6, EN61000-4-8, EN61000-4-11
Safety	UL, cUL, EN 60950
Shock	IEC 60068-2-27
Free Fall	IEC 60068-2-32
Vibration	IEC 60068-2-6
Warranty	Global 5 years

Box Contents:

JetNet 3705f-m Industria 5-port l PoE Power Source Ethernet Switch with one Multi-Mode 100Base-Fx
Includes:

• 4 x 10/100 Base-TX PoE Port, 1 x Multi-Mode 100 Base-FX Switch
• Quick Installation Guide
• Documentation CD-ROM
• DIN-Rail mounting kit

JetNet 3705f-s 5-port Industrial PoE Power Source Ethernet Switch with one Single-Mode 100Base-Fx
Includes:

• 4 x 10/100 Base-TX PoE Port, 1 x Single Mode 100 Base-FX Switch
• Quick Installation Guide
• Documentation CD-ROM
• DIN-Rail mounting kit