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Black Box MEG250AE-R2 User Manual
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Black Box MEG250AE-R2 User Manual

Industrial grade vdsl2 modem
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USER MANUAL
MEG250AE-R2
INDUSTRIAL-
GRADE VDSL2
MODEM
24/7 TECHNICAL SUPPORT AT 1.877.877.2269 OR VISIT BLACKBOX.COM

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Summary of Contents for Black Box MEG250AE-R2

  • Page 1 USER MANUAL MEG250AE-R2 INDUSTRIAL- GRADE VDSL2 MODEM 24/7 TECHNICAL SUPPORT AT 1.877.877.2269 OR VISIT BLACKBOX.COM...
  • Page 2 Monitoring system, and point-to-point applications. Black Box MEG250AE-R2 is not compatible with MEG201AE, MEG201RAE, MEG201AE-R2, MEG201RAE-R2, or MEG821AE. Contact your nearest Black Box office if you have any product questions. Visit www.black-box.eu for a list of countries, offices, phone numbers, and addresses. 1.877.877.2269...
  • Page 3 • Damages caused by heat, water, or direct sunshine If you experience any error or problem, contact your local dealer or nearest Black Box office for support. If you are told to send the device for RMA and repair, ALWAYS ship the entire device, including its power supply.
  • Page 4 MEG250AE-R2 Setup Steps MEG250AE-R2 is an Industrial-Grade, point-to-point, Ethernet modem using simple telephony wires as a media. MEG250AE-R2 has an IP30 chassis, 4 LAN Ports (10/100), and an extended temperature range. MEG250AE-R2 is for DIN-Rail mounting and for DC powering from 15 to 48V DC. MEG250AE-R2 also has an alarm relay contact.
  • Page 5 300-400m. The exact number of meters depends upon various factors, including your wire diameter, quality, and number of interconnects. The maximum cable length of MEG250AE-R2 is up to 3000m with quality thick cables. For longer cables (>300-400m) the bandwidth is lower and asymmetrical. Review the performance/reach table later in this manual.
  • Page 6 NEED HELP? LEAVE THE TECH TO US LIVE 24/7 TECHNICAL SUPPORT 1.877.877.2269 What does Interleave mean? This feature is used to protect the transmission and the stability of the connection against crosstalk issues. Crosstalk comes from signals on other cables. With the Interleave feature your connection and transmission will be more reliable.
  • Page 7 Setting the MEG250AE-R2 to a higher SNRM of 9db means that the modem will synchronize the line with a spare of 9db budget. If you experience high EMI at your installation, a higher spare budget means more stability but less bandwidth.
  • Page 8 NEED HELP? LEAVE THE TECH TO US LIVE 24/7 TECHNICAL SUPPORT 1.877.877.2269 Although G.INP as an invention has existed for several years and it is a software construct (for example, firmware), many Telco companies delayed rollout since it relies on hardware resources to process the DTU and store data in the retransmission buffer at the transmitting end.
  • Page 9 Do not use any low diameter cables. At least AWG26 is recommended, and AWG24 is better. MEG250AE-R2 is not capable of doing PoE PSE or PD. You may connect PoE devices, but they will not be powered. Read page 4 for setup steps.
  • Page 10 NEED HELP? LEAVE THE TECH TO US LIVE 24/7 TECHNICAL SUPPORT 1.877.877.2269 Front Panel Description: The front panel shows from left to right: LAN1~LAN4 Port Network Ports 10/100/1000Mbps, RJ-45, Auto-negotiation LAN1~LAN4 LED Off if no link, On if link and flashing while transferring data LINE LED Off if no link, On if linked, flashing slowly if just synchronizing, flashing fast if transferring data.
  • Page 11 The rear panel shows from left to right: Power The MEG250AE-R2 has two sets of power inputs, power 1 and power 2, which are located on the MEG250AE-R2’s side panel. Power 1 is the bottom two contacts on the upper 6- contact terminal block, and power 2 is the top two contacts on the lower 2-contact terminal block.

  • Page 12: Safety Caution

    STEP 3: Insert the plastic terminal block connector prongs into the terminal block receptor, which is located on the MEG250AE-R2 ’s side panel. Attention: 1. Please note that the negative DC wire must connect into the V- terminal, and the positive DC wire must connect into the V+terminal.

  • Page 13: Wiring The Relay Contact

    1.877.877.2269 Wiring the Relay Contact The MEG250AE-R2 has a set of relay outputs. The relay contact uses two of the terminal block’s contacts located on the MEG250AE-R2’s side panel. The following table shows how to connect the wires to the terminal block connector. In this section, we illustrate the meaning of the two contacts used to connect the relay contact.
  • Page 14 NEED HELP? LEAVE THE TECH TO US LIVE 24/7 TECHNICAL SUPPORT 1.877.877.2269 Before user installed power and device, please read and follow these essentials: • Use separate paths to route wiring for power and devices. If power wiring and device wiring paths must cross, make sure the wires are perpendicular at the intersection point.
  • Page 15 NEED HELP? LEAVE THE TECH TO US LIVE 24/7 TECHNICAL SUPPORT 1.877.877.2269 General Rules Ethernet Port (RJ-45) All network connections to the Modem Ethernet port must be made using Category 5, 5e, 6a, or 7. No more than 100 meters of cabling may be used between the HUB or Computer.
  • Page 16 NEED HELP? LEAVE THE TECH TO US LIVE 24/7 TECHNICAL SUPPORT 1.877.877.2269 xDSL cabling No two cables are exactly identical. Physics, including cable length, matters for every cable.. Once you talk to your customer about the cables, you will get an estimation of the necessary cable length.
  • Page 17 NEED HELP? LEAVE THE TECH TO US LIVE 24/7 TECHNICAL SUPPORT 1.877.877.2269 Cabling Guidelines and Rules In general, there are four rules about xDSL cabling: The thicker the cable, the better The weakest part of the cable makes up the quality of the whole Watch out for EMI sources Use twisted cabling Rule 1 means that using an AWG24 cable is always better than using an AWG28.
  • Page 18 MEG101AE MEG101AE-R2 MEG101AE-R3 MEG101AE-R4 MEG101AE-R5 MEG201AE MEG201AE-R2 MEG250AE MEG250AE-R2 MEG801AE MEG801AE-R2 MEG821AE MPG101AE-R2 A B C D E F G H I Y N N N N N N Y N N N N N N Y Y N N N N N N N N N N...
  • Page 19 What can I do if my line is too long? Often there are different routes to get to the “other side.” Try to find out if there is another one. If not, Black Box has other xDSL devices that will work in your circumstances.
  • Page 20 NEED HELP? LEAVE THE TECH TO US LIVE 24/7 TECHNICAL SUPPORT 1.877.877.2269 Product Specification IEEE802.3 / IEEE802.3u / IEEE802.3ab standard Standard: G993.2 VDSL2 standard (4) RJ-45 10/100/1000Mbps autoneg. Ethernet port (1) RJ-11/Terminal Block connector for VDSL2 line port (1) DIP Switch Physical Interface: (1) removable 6-contact terminal blocks for power1 and alarm contact...
  • Page 21 This test was conducted with AWG24 simulation cards, Windows 7/10/11 machines at 26 degrees Celsius. Simulation cards do not simulate EMI, Interference, and Interconnects. Consequently, your results will vary. MEG250AE-R2(TM) ->MEG250AE-R2(RCV) Max. Datarate (Down speed/Up speed) Mbps Length Profile 1...
  • Page 22 NEED HELP? LEAVE THE TECH TO US LIVE 24/7 TECHNICAL SUPPORT 1.877.877.2269 © COPYRIGHT 2024. BLACK BOX CORPORATION. ALL RIGHTS RESERVED. EN_NET_MANUAL_MEG250AE-R2_REV1_2410.PDF...