MikroTik RouterBOARD 751U-2HnD User Manual
MikroTik RouterBOARD 751U-2HnD User Manual

MikroTik RouterBOARD 751U-2HnD User Manual

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RouterBOARD 751U-2HnD

User's Manual

Copyright and Warranty Information

Copyright and Trademarks. Copyright MikroTikls SIA. This manual
contains information protected by copyright law. No part of it may be
reproduced or transmitted in any form without prior written
permission from the copyright holder. RouterBOARD, RouterOS,
RouterBOOT and MikroTik are trademarks of MikroTikls SIA. All
trademarks and registered trademarks appearing in this manual are
the property of their respective holders.
Hardware. MikroTik warrants all RouterBOARD series equipment for the term of fifteen (15) months from the
shipping date to be free of defects in materials and workmanship under normal use and service, except in case
of damage caused by mechanical, electrical or other accidental or intended damages caused by improper use
or due to wind, rain, fire or other acts of nature.
To return failed units to MikroTik, you must perform the following RMA (Return Merchandise Authorization)
procedure. Follow the instructions below to save time, efforts, avoid costs, and improve the speed of the RMA
process.
1. If you have purchased your product from a MikroTik Reseller, please contact the Reseller company
regarding all warranty and repair issues, the following instructions apply ONLY if you purchased your
equipment directly from MikroTik in Latvia.
2. We do not offer repairs for products that are not covered by warranty. Exceptions can be made for
RB1000, RB1100, RB1200.
3. Out-of-warranty devices and devices not covered by warranty sent to Mikrotikls will be returned to
the sender at sender's cost.
RMA Instructions are located on our webpage here: http://rma.mikrotik.com
Manual. This manual is provided "as is" without a warranty of any kind, expressed or implied, including, but
not limited to, the implied warranty of merchantability and fitness for a particular purpose. The manufacturer
has made every effort to ensure the accuracy of the contents of this manual; however, it is possible that it may
contain technical inaccuracies, typographical or other errors. No liability is assumed for any inaccuracy found
in this publication, nor for direct or indirect, incidental, consequential or other damages that may result from
such an inaccuracy, including, but not limited to, loss of data or profits. Please report any inaccuracies found to
support@mikrotik.com

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Summary of Contents for MikroTik RouterBOARD 751U-2HnD

  • Page 1 2. We do not offer repairs for products that are not covered by warranty. Exceptions can be made for RB1000, RB1100, RB1200. 3. Out-of-warranty devices and devices not covered by warranty sent to Mikrotikls will be returned to the sender at sender's cost.
  • Page 2: Table Of Contents

    USER'S MANUAL ................................1 COPYRIGHT AND WARRANTY INFORMATION ........................1 SYSTEM BOARD VIEW AND LAYOUT ..........................3 SPECIFICATIONS ................................3 HARDWARE GUIDE ................................4 ..............................4 EMORY AND TORAGE EVICES Memory .................................... 4 Storage Device ................................. 4 ................................4 NPUT UTPUT ORTS Ethernet ports ..................................
  • Page 3: System Board View And Layout

    RouterBOARD 751 Series User's Manual System Board View and Layout You can download the board dimensions and case design files (PDF and DXF) from www.routerboard.com Specifications RouterBOARD 751U-2HnD AR7241 400MHz Memory 32MB DDR SDRAM onboard Boot loader RouterBOOT Data storage...
  • Page 4: Hardware Guide

    Wireless specifications Wireless Integrated Wireless 2.4GHz 802.11b/g/n 2x2 MIMO Antenna 2x2 MIMO PIF antennas, max gain 2.5dBi, external MMCX option RX Sensitivity 802.11g: -96dBm (6Mbit/s) to -81dBm (54Mbit/s) 802.11n: –96 dBm (MCS0) to –78 dBm (MCS7) TX Power 802.11g: 30dBm (6Mbps) to 27dBm (54Mbps) 802.11n: 30dBm (MCS0) to 26dBm (MCS7) Modulations OFDM: BPSK, QPSK, 16 QAM, 64QAM;...
  • Page 5: Booting From Network

    RouterBOARD 751 Series User's Manual Booting options RouterOS is the operating system of all RouterBOARD routers. Please see detailed configuration guide here http://wiki.mikrotik.com/wiki/Category:Manual Initial configuration includes the following: wirelesss AP with SSID „MikroTik” has been enabled, and bridged to ports Ether2-Ether5. This bridge has a DHCP server runni ng, so you can connect to the devide using the Web based „Webfig”...
  • Page 6: Onfiguration

    Buttons and Jumpers  RouterOS reset jumper hole (on the bottom of case) – resets RouterOS software to defaults. Must short circuit the metallic sides of the hole with a screwdriver and boot the device. Hold screwdriver in place until RouterOS configuration is cleared. ...
  • Page 7: Routeros Functions

    RouterBOARD 751 Series User's Manual The Primary boot loader has the default settings, which can not be changed. It is also not possible to upgrade RouterOS functions The default OS of RouterBOARD devices is RouterOS, when the routerboard.npk package is installed, RouterOS can configure some RouterBOARD hardware settings Firmware information This menu displays RouterBOARD model number, serial number, the current boot loader version and the...
  • Page 8: Ethernet Cables

    Button Index Buttons and Jumpers Software Reset 1 button. (see ” ”) Buttons and Jumpers RESET Software Reset 2 jumper hole. Resets RouterOS settings (see „ ”) (unlabeled) Ethernet Cables RJ45 Color Function Function RJ45 pin for Straight cable RJ45 pin for Crossover cable (100Mbit) (1Gbit) (MDI, EIA/TIA568A)

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