ELECTRA-S-04 - Network switch Ernitec - Free user manual and instructions

Product Type	Network Switch
Brand	Ernitec
Model	ELECTRA-S-04
Number of Ports	4
Port Speed	10/100 Mbps (Fast Ethernet)
Standards	IEEE 802.3, 802.3u, 802.3x
Interface	RJ-45
Switching Capacity	0.8 Gbps
MAC Address Table	1K entries
Power Supply	External power adapter (5V DC, 0.5A)
Dimensions (W x D x H)	120 x 75 x 25 mm
Weight	200 g
Operating Temperature	0°C to 40°C
Storage Temperature	-10°C to 70°C
Humidity	10% to 90% non-condensing
Features	Plug and Play, Auto MDI/MDIX, Store-and-Forward
Mounting	Desktop or wall mountable
LED Indicators	Power, Link/Activity for each port
Safety	Keep away from liquids, do not open case
Cleaning	Wipe with a dry, soft cloth
Spare Parts	Not applicable, no user-serviceable parts

Frequently Asked Questions - ELECTRA-S-04 Ernitec

How do I connect the ELECTRA-S-04 switch?

Connect the power adapter, then use Ethernet cables to connect devices to any of the 4 ports. The switch is plug and play and requires no configuration.

What is the maximum cable length supported?

The switch supports standard Ethernet cables up to 100 meters (328 feet) for each port.

Can I mount the switch on a wall?

Yes, the switch has mounting holes on the bottom. Use two screws (not included) to secure it to a wall.

Why are the LEDs not lighting up?

Check the power adapter connection and ensure the outlet is working. If using a power strip, try a different outlet. If still off, the adapter may be faulty.

Does this switch support gigabit speeds?

No, the ELECTRA-S-04 is a Fast Ethernet switch supporting up to 100 Mbps per port. It does not support gigabit (1000 Mbps).

How do I clean the switch?

Unplug the switch and wipe the exterior with a dry, soft cloth. Do not use any liquids or cleaning agents.

Can I use this switch with a modem/router?

Yes, you can connect the switch to any router or modem using an Ethernet cable to expand the number of wired connections.

What should I do if the switch overheats?

Ensure the switch is placed in a well-ventilated area away from direct sunlight or heat sources. Do not stack devices on top.

Are replacement power adapters available?

Use only a 5V DC, 0.5A adapter with a 2.1mm center-positive barrel plug. Compatible adapters can be found online.

How do I reset the switch?

The switch has no reset button. Simply power cycle by unplugging the adapter for 10 seconds and plugging it back in.

USER MANUAL ELECTRA-S-04 Ernitec

Power-over-Ethernet (PoE) eliminates the need to run DC power to other devices on a single wired LAN. Using Power-Over-Ethernet, installers only need to run a single CAT 5cable that carries both data and power to each device. This allows greater flexibiliy in the location of the network devices. And in many cases significantly decreases the installation costs.

There are two system components in PoE – the PSE (Power Sourcing Equipment) and the PD (Powered Device). The IEEE 802.3af/at specification defines PSE as a device that inserts power onto an Ethernet cable. The PSE may be located at the switch (Endspan configuration). Or it may be a separate device (Poe Injector) located between the switch and the PD (Midspan configuration). The PD is the natural termination of this link, receiving the power and the data And it could be an IP camera or an IP phone or a WLAN Access Point that require power. The current is transmitted over 2 of the 4 twisted pairs of wires in a Category-5, 6, 7 cable.

Power-over-Ethernet follows the IEEE 802.3af/at specification and is completely compatible with existing Ethernet switches and networked devices. Because the Power Sourcing Equipment (PSE) tests whether a networked device is PoE-capable, power is never transmitted unless a Powered Device is at the other end of the cable. It also continues to monitor the channel. If the Powered Device does not draw a minimum current, because it has been unplugged or physically turned off, the PSE shuts down the power to that port.

Optionally, the standard permits Powered Devices to signal th the PSEs exactly how much power they need.

The PoE switch is a multi-port fast Ethernet switch that can be used to build high-performance switched workgroup networks. This switch is a store-and-forward device that offers low latency for high-speed networking. It also features a “store-and-forward” switching scheme that allows the switch to auto-learn and store source addresses in a 8K-entry MAC address table. The switch is targeted at workgroup, department or backbone computing environments.

Hardware Description

The Front Panel:

The front panel consists of LED Indications and 5 auto-sensing ports

4 x 10/100 PoE Ports and 1 X 10/100 Uplink port

LED Indicators:

Per Device: Power

Per Port: LINK/ACTY (Link activity)

Per PoE Port: Poe (On or off)

Figure 2

Figure 2. Front panel view of LED indications

LED	Status	Color	Description
Power	On	Green	The switch is supplied with suitable power
	ON	Green	The port is connecting
LINK/AC	Blinks	-	The port is receiving or transmitting data
	Off	-	The port is not linked successfully with the device
PoE	On	Green	PD isconnected
	Of	-	No PD isconnected or the device does not need power

Network Application

This section provides a sample of network topology in which the switch can be used. The PoE switch is designed as a segment switch that has a large address table and high performance to deal with interconnecting networking segments

PC, workstations and servers can communicate with each other by directly connecting with the PoE switch. The switch automatically learns node addresses, which are subsequently used to filter and forward all traffic based on the destinations address.

The PoE switch can provide power to PDs that follow the IEEE 802.3af/at standard in the network and solves the problem of position limitation. The network devices can be installed in more appropriate positions for better performance. The following figure is an example of a network application for Power over Ethernet Switch.

graph TD
    A["ernitec"] --> B["Saturn SX"]
    C["Hawk SX"] --> B
    D["emitec"] --> E["Mercury SX"]
    F["Electra S04"] --> G["Monitor Station"]
    G --> H["Computer"]
    H --> I["Monitor Station"]