Mikrotik Router RB750

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An entirely new class of product in the RouterBOARD lineup, the RB750 is a small five port ethernet router in a nice plastic case for a very special price, and yet - with all the power of RouterOS.

- 39200 Packets Per Second

- 197.34 Mbs-1 Aggregate

- Atheros AR7240 400MHz Processor

- 32MB DDR SDRAM

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An entirely new class of product in the RouterBOARD lineup, the RB750 is a small five port ethernet router in a nice plastic case for a very special price, and yet - with all the power of RouterOS.

Even more - it’s probably the most affordable MPLS capable router on the market. With it’s compact design and clean looks, it will fit perfectly into any SOHO environment.

Powering

The board accepts powering from either the power jack, or from the LAN1 Ethernet port:

direct-input power jacks J7/J8 (5.5mm outside and 2mm inside diameter, female, pin positive plug) accept 9..28 V DC (overvoltage protection starts at 30V).

LAN1 Ethernet port J6 accepts 9..28 V DC input (at the board; higher voltage needed to compensate for power loss on long cables; at least 18V suggested) from non-standard (passive) Power over Ethernet injectors (no power over datalines). The board does not work with IEEE802.3af compliant 48V power injectors.

CAUTION: all power inputs are always active, but only one of them may be used at time to avoid damage of equipment.

Booting process

First, RouterBOOT loader is started. It displays some useful information on the onboard RS232C asynchronous serial port. The serial port is set by default to 115200bit/s, 8 data bits, 1 stop bit, no parity. Note that the device does not fully implement the hardware (RTS/CTS) flow control, so it is suggested to try to disable hardware flow control in the terminal emulation program in case the serial console does not work as expected, and if it does not help, make a new cable using the pinout given in the User's manual. The loader may be configured to boot the system from the onboard NAND, and/or from network. See the respective section of User's manual on how to configure booting sequence and other BIOS parameters.

DHCP or BOOTP (configurable in loader) protocols allow the miniROUTER series computer to get an initial IP address, and provide the address of a TFTP server to download an ELF boot image from. It is especially useful for software installation purpose. See the User's manual for more information and protocol details. Note that you must connect the RouterBOARD you
want to boot and the BOOTP/DHCP and TFTP servers to the same broadcast domain (i.e., there must not be any routers between them – they must be on the same Ethernet switch).

Extension Slots and Ports

Five 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 first Ethernet port accepts 9..28 V DC powering from a passive PoE injector. The other four Ethernet ports do not support PoE powering.

Ideal Usage