Mikrotik RB750GR3 Manual

Mikrotik Router RB750GR3

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Side 1/2

HEX series

The hEX series are small ethernet routers with five ports.

First use

 Connect your Internet cable to port 1 (labeled “Internet”), and local network computers to ports 2-5

 Set your computer IP configuration to automatic (DHCP)

 The IP address from local network is 192.168.88.1, use it in your browser to access the device

Powering

The device accepts powering from the power jack or from the first Ethernet port (Passive PoE):

 Direct input power jack (5.5mm outside and 2mm inside, female, pin positive) accepts 8-30V DC

 The first Ethernet port accepts passive Power over Ethernet accepts 8-30V DC

The power consumption of this device under maximum load is up to 3W

Booting process

The device is already configured and protected from the internet side, but it is suggested to set a password.

Open and since there is no password, the browser will automatically log into the configuration192.168.88.1

interface. In case IP connection is not available, Winbox can be used to connect to the MAC address of the

device. More information here: http://wiki.mikrotik.com/wiki/First_time_startup

In case you wish to boot the device from network, for example to use MikroTik Netinstall, hold the RESET

button of the device when starting it. Keep holding the button until the LED light turns off, and the device will

start to look for Netinstall servers.

Extension Slots and Ports

 Five individual Ethernet ports, supporting automatic cross/straight cable correction (Auto MDI/X), so

you can use either straight or cross-over cables for connecting to other network devices. The

Ethernet port accepts 8-30V DC powering from a passive PoE injector, 12V or more is

recommended to compensate for loss in cables.

Buttons

The Reset button (front panel, labeled RES) has these functions:

• Loading the backup RouterBOOT loader: Hold this button before applying power, release after

three seconds since powering, to load backup Boot loader. This might be necessary if the device is

not operation because of a failed RouterBOOT upgrade. When you have started the device with the

backup loader, you can either set RouterOS to force backup loader in the RouterBOARD settings,

or have a chance to reinstall the failed RouterBOOT from a fwf file (total 3 seconds)

• Resetting the RouterOS configuration: If you keep holding this button for 2 more seconds until

LED light starts flashing, release the button to reset RouterOS configuration (total 5 seconds)

• Starting the RouterBOARD in Netinstall mode: Or Keep holding the button for 5 more seconds

until until LED turns off, then release it to make the RouterBOARD look for Netinstall servers. You

can also simply keep the button pressed until the device shows up in the Netinstall program on

Windows (total 15 seconds)

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Produkt Specifikationer

Mærke:	Mikrotik
Kategori:	Router
Model:	RB750GR3
Bredde:	113 mm
Dybde:	89 mm
Højde:	28 mm
Produktfarve:	Turquoise,White
Ethernet LAN-porte (RJ-45):	5
Ethernet LAN:	Ja
Processorkerner:	4
Driftstemperatur (T-T):	-30 - 70 °C
Ethernet LAN-datahastigheder:	10,100,1000 Mbit/s
Intern hukommelse:	256 MB
Ethernet WAN:	Ja
Kabelteknologi:	10/100/1000Base-T(X)
LED-indikatorer:	Strøm
Strømkilde type:	DC
Harmoniseret systemkode (HS):	85176990
Antal USB-porte:	1
Processorfrekvens:	880 Mhz
Intern lagerkapacitet:	0.16 GB
Indgangsstrøm:	8 - 30 A
Strøm over Ethernet (PoE):	Ja
Ethernet-grænsefladetype:	Gigabit Ethernet
Indbygget processer:	Ja
USB-opladningsport:	Ja
Processor arkitektur:	MIPS64