2G-2S.3.0.F

The HUB Pro unit is connected to the RS485 bus of the METEL device (Switch, MiniLAN-4B2), which acts as a converter between the RS485 bus and the TCP/IP port (server). The additional software (client) then communicates with the HUB Pro via this port.

The TCP connection is established by the client, the first initialization must come from its side. The connection is then maintained automatically.

HUB Pro RS485 parameters (default):
Baud rate 9600b/s
Data bits 8
Stop bits 1
Parity None

Sample configuration:

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The recommended line load is 75% of the total data throughput.

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Yes, of course, this option is available for the LAN-RING system. Only in this case, we recommend disabling the ringing function in the switch configuration (None) or switching LAN-RING to Rapid Spanning Tree Protocol (RSTP-M).

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The PoE function is factory set to "disable". Therefore, individual ports to which cameras or PoE-enabled devices are connected must be enabled in the configuration. If PoE does not start even after activation, the switch allows you to enable the Ignore Detect feature.

If the distance between the camera and the switch is longer than 100 m, we use a LAN-EXT solution. This is a device that can repeat the route of the link, even several times in a row.

LAN extenders

It is annoying to climb a pole and restart the camera or drive 100 km when the camera freezes. For this reason, we have added an IP Watchdog feature to the switches that monitors the camera address and automatically restarts PoE if communication is lost.

IP Watchdog is not only used to restart PoE, but can also monitor any IP address and in case of IP address failure, it can switch any contact in the LAN-RING network or trigger any other configured event.

ETH-BUS - communication addresses

On the device with relay you set the receiving address e.g. 239.192.168.1 (multicast) and on the device with input you set the sending address 239.192.168.1.

In this way, the input status information is transmitted to the output device.

Create an event on the switch with input. Send the input status as an ETH event under ID#1.

Establish a receive event on the switch with a relay. The response to the ETH event with ID#1 is to turn the relay on/off.

For security reasons, there is no reset button on the switches. If you need to reset the switch to factory settings, you will need a USB C cable (B - older models) and SIMULand.v4 configuration software.

Procedure

Click USB in the Conectivity menu, click Reset (Factory Default) in the following window and reset the switch to factory settings.

Note: For Windows 8.1 and earlier operating systems, you may need to install the USB driver.

Yes. A USB factory reset will restore the device to factory settings.

Default parameters
IP address - printed on the switch label
Mask - 255.0.0.0
Gateway - 10.1.0.1

Yes, they have support.

For example, we can recommend the following tested types:
MICROTIK S-RJ01
BEL SFP-1GBT-05

RJ45 SFP modules are not supported in the 2G-2C.8S.0.0.F(G)-BOX switch on ports P1-P8.

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To answer this question, it is useful to refer to EN62305-1 (Lightning protection, Part 1 - General principles).

Switches, connected metallic cabling and equipment (cameras) should be located in the LPZ0B zone, i.e. in a zone protected by a lightning arrester against direct lightning strikes.

Table E.2 gives the expected utility current for LPL I-II (Lightning Protection Levels) under indirect lightning strike up to 100A (8/20µs) and for LPL (III-IV) up to 50A (8/20µs).

However, the standard recommends that magnetic cable shielding be included in the protection of electronic systems.

Therefore, if the switch will be in our OH65 steel enclosure and routed through the inside of a steel pole or steel protector (all under the arrester and grounded), 150A (8/20µs) is sufficient protection.

If any of the above precautions are not followed, switches with 1000A (8/20µs) protection on the FE ports must be used.

The most important thing is to make every effort to prevent direct lightning strikes, where the standard assumes a current of up to 2000A (10/350µs). Such a current is a major problem for the RJ45 connectors themselves. In our experience, the maximum level of current that RJ45 contacts can withstand is somewhere between 1-2kA (8/20µs).

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I have observed different RSTP behavior of your switch compared to a competing switch in the following situation. There are two switches in the network connected to each other by a fiber optic link. Egress filtering is enabled on one of these devices (Egress filtering: No unknown destination address). However, only one switch is available at this time because the link is blocked by the RSTP protocol. However, if I replace the unavailable switch with a competing device with a similar configuration, both switches are available.

Egress filtering causes BPDU frames to be sent only in one direction because the other direction is filtered. This causes the first switch to know about the second, but the second switch does not know about the first. This condition is handled by the so-called "contention mechanism". This was incorporated into the 802.1D-2004 standard and solves the problem you mentioned by blocking the link to prevent loops. Our implementation of the RSTP protocol complies with this standard. Other vendors may have a different implementation of the RSTP protocol based on an older standard that did not include a "dispute mechanism".

No, they can't. For older types of DSC POWER control panels, we recommend using xDW-S-PDS, which are compatible with the DSC POWER control panel.

Yes, the switch allows you to respond to the input state of a remote device by data shutting down the port. PoE remains active, so there is no need to wait for camera initialization on recovery, it is available immediately.