Korenix JetNet 3705-24V User manual
JetNet 3705-24V
5-port Industrial Fast Ethernet PoE Switch
User Manual
Revision V1.0
FCC Warning
This Equipment has been tested and found to comply with the limits for a
Class-A digital device, pursuant to Part 15 of the FCC rules. These limits
are designed to provide reasonable protection against harmful interference
in a residential installation. This equipment generates, uses, and can
radiate radio frequency energy. It may cause harmful interference to radio
communications if the equipment is not installed and used in accordance
with the instructions. However, there is no guarantee that interference will
not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct
the interference by one or more of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to
which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
CE Mark Warning
This is a Class-A product. In a domestic environment this product may cause
radio interference in which case the user may be required to take adequate
measures.
Content
Introduction................................................................ 1
Features................................................................... 1
Package Contents................................................... 2
Hardware Description ............................................... 3
Physical Dimension................................................. 3
Front Panel.............................................................. 4
Top View.................................................................. 4
LED Indicators......................................................... 5
Ports......................................................................... 6
Cabling..................................................................... 7
Wiring the Power Inputs ........................................ 8
Wiring the Fault Alarm Contact............................. 9
Mounting Installation .............................................. 10
DIN-Rail Mounting................................................. 10
Wall Mounting.........................................................11
Hardware Installation.............................................. 13
Installation Steps................................................... 13
Network Application................................................ 14
Troubleshooting ...................................................... 15
Technical Specification........................................... 16
JetNet 3705-24V 5-port Industrial Fast Ethernet Power over Ethernet Switch
1
Introduction
The JetNet 3705-24V Industrial Switch is 5-port Fast Ethernet switch with 4 IEEE-
802.3af PoE injectors with one DC booster for transportation PoE application. The
internal DC booster can boost Dc power from 24V to 48V to compliance with IEEE
802.3af Power over Ethernet standard. It offers 60 watts power budget to satisfy 4 ports
15.4w power consumption. With the rugged Aluminum alloy housing, the JetNet 3705-
24V survived under -25°C ~ 60°C environment temperature give your Power over
Ethernet application best reliability.
Features
System Interface/Performance
¾RJ-45 ports support Auto MDI/MDI-X Function
¾Embedded 4-port PoE Injection
¾Store-and-Forward Switching Architecture
¾Back-plane (Switching Fabric): 1.0Gbps
¾2K MAC Address Table
Power Input
¾DC 24V~48V Redundant Power Input
Operating Temperature
¾Standard: -25°C ~ 60°C
Case/Installation
¾IP-30 Protection
¾Installation in a Pollution Degree 2 environment
¾DIN Rail and Wall Mount Design
2
Package Contents
Please refer to the package contents list below to verify them against the checklist.
JetNet 3705-24V
User manual
Removable Terminal Block- installed on the device
Wall-mount Kit (2 wall-mount bracket with screws)
Compare the contents of the industrial switch with the standard checklist above. If any
item is damaged or missing, please contact the local dealer for service.
3
Hardware Description
In this paragraph, the Industrial switch’s hardware specs, ports, cabling information, and
wiring installation will be described.
Physical Dimension
JetNet 3705-24V dimensions (W x D x H) is 48.6mm x 95mm x 140mm, the detail
dimensions as Figure-1
Figure-1: Mechanical Dimension
4
Front Panel
The Front Panel of the JetNet 3705-24V is shown below Figure-2
Figure-2: Front Panel of the PoE Injectors Industrial Switch
Top View
The top view of the JetNet 3705-24V has one terminal block connector of two DC power
inputs and Relay circuit contact. Please refer to Figure-3 for further information.
Figure-3: Top View of the JetNet 3705-24 Industrial Switch
5
LED Indicators
The diagnostic LEDs located on the front panel of the industrial switch provide real-time
information of system and operation status. Table-1 provides the description of the LEDs
status and their definitions for the switch.
LED Color Description
On Power input 1 is active
P1 Green
Off Power input 1 is inactive
On Power input 2 is active
P2 Green
Off Power input 2 is inactive
On Power input 1 or 2 has failed
P-Fail Red
Off Power input 1 and 2 are both functional, or no power
inputs
On The port is supplying power to the powered-device
PoE indicator
(Port 1 ~ 4) Green Off No powered-device attached or power supplying fails
On Connected to network
Flashing Networking is active
Green
Off Not connected to network
On Full-duplex link
Flashing Collision occurs
LAN Port 1 ~ 5
(RJ-45) Amber
Off Half-duplex link or link down
Table-1: LED Indication Definition
6
Ports
RJ-45 ports
The Fast Ethernet ports (RJ-45) will auto-sense for 10Base-T or 100Base-TX
connections. Auto MDI/MDI-X means that the switch can connect to another switch or
workstation without changing straight-through or crossover cabling. Please refer to
Table-2 for RJ-45 pin assignment.
Pin Number Assignment
1 Tx+
2 Tx-
3 Rx+
6 Rx-
Table-2: RJ-45 Pin Assignment
Note “+” and “-” signs represent the polarity of the wires that make up each wire
pair.
All ports on this industrial switch supports automatic MDI/MDI-X operation, users can
use straight-through cables (See figures below) for all network connections to PCs or
Servers, or to other switches/hubs. In straight-through cable, pins 1, 2, 3, and 6, at one
end of the cable, are connected straight through to pins 1, 2, 3 and 6 at the other end of
the cable. Table-3 shows the 10BASE-T/100BASE-TX MDI and MDI-X port pin-outs.
Pin MDI-X Signal MDI Signal
1 Receive Data plus (RD+) Transmit Data plus (TD+)
2 Receive Data minus (RD-) Transmit Data minus (TD-)
3 Transmit Data plus (TD+) Receive Data plus (RD+)
6 Transmit Data minus (TD-) Receive Data minus (RD-)
Table-3: MDI/MDI-X Port Pin-outs
7
The following figures show the cable schematic for straight-through type (Figure-4) and
crossover type (Figure-5).
Switch Router / PC
3 TD+ 3 RD+
6 TD- 6 RD-
1 RD+ 1 TD+
2 RD- 2 TD-
Figure-4: Straight Through Cable Schematic
Switch Switch
3 TD+ 3 RD+
6 TD- 6 RD-
1 RD+ 1 TD+
2 RD- 2 TD-
Figure-5: Crossover Cable Schematic
Cabling
Twisted-pair segments can be connected with unshielded twisted pair (UTP) or
shielded twisted pair (STP) cable. The cable must comply with the IEEE 802.3u
100Base TX standard (e.g. CAT.5, CAT.5e, or CAT.6). The cable between the
equipment and the link partner (switch, hub, workstation, etc.) must be less than
100 meters (328 ft.) long.
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