Community discussions

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by aaa
Thu Sep 16, 2010 9:55 am
Forum: RouterBOARD hardware
Topic: NEW RB711
Replies: 110
Views: 27050

Re: NEW RB711

Yes, but more difficult like 411 :))
by aaa
Thu Sep 16, 2010 9:52 am
Forum: RouterBOARD hardware
Topic: RB 450 - Bad Capacitor / again
Replies: 6
Views: 2386

Re: RB 450 - Bad Capacitor / again

Hi, with PCB holes and TH capacitors everything is ok. Your soldering-iron is not enough power. This Caps connected to ground layer and power layer and provide good heat dissipate ability. Use 45W or higher power soldering-iron to replace this caps. Regarding your second problem description testify ...
by aaa
Wed Sep 15, 2010 10:11 am
Forum: RouterBOARD hardware
Topic: R52Hn heat/problems
Replies: 20
Views: 3782

Re: R52Hn heat/problems

With 0 ohms resistor swich 5V power source and solder external power source wires in located place. See attached picture. Don't mix 5V polarity! Don't exceed 5V! In that way you reduce heat dissipation from card.
by aaa
Tue Sep 14, 2010 3:34 pm
Forum: Wireless Networking
Topic: UFL male to MMCX Connectors or change the pigtail
Replies: 10
Views: 3336

Re: UFL male to MMCX Connectors or change the pigtail

Write to sales@mikrotik.com I think he can offer necessary parts.You can easy put it with soldering-iron.
by aaa
Tue Sep 14, 2010 11:16 am
Forum: Wireless Networking
Topic: UFL male to MMCX Connectors or change the pigtail
Replies: 10
Views: 3336

Re: UFL male to MMCX Connectors or change the pigtail

For me it's easy solder u.fl and one capacitor on 411. It cost only few cents. About attenuation you are right, typical u.fl pigtail los is close to 3dB@5GHz , MMCX is lightly better.
by aaa
Tue Sep 14, 2010 9:12 am
Forum: RouterBOARD hardware
Topic: RB1100 jumping to kernel code
Replies: 6
Views: 1920

Re: RB1100 jumping to kernel code

Can you test memory in BIOS? Hit any key and then "t"
by aaa
Tue Sep 14, 2010 8:28 am
Forum: Wireless Networking
Topic: Mesh Antennas for R52Hn Recommendations.
Replies: 2
Views: 565

Re: Mesh Antennas for R52Hn Recommendations.

2,4GHz omni you can't find so small and I am not sure about 5GHz. Omni antenna size is directly related to antenna frequency and antenna gain.
by aaa
Fri Sep 10, 2010 3:18 pm
Forum: Wireless Networking
Topic: FOR UAV AIRPLANES NEED VIDEO TRANSMISSION EQUIPMENTS
Replies: 5
Views: 1237

Re: FOR UAV AIRPLANES NEED VIDEO TRANSMISSION EQUIPMENTS

How many power provide your airplane? What is airplane bearing capacity? Most 5GHz omni antenna have narrow E-Plane beam width. I think more suitable is 900MHz or 2,4GHz band.
by aaa
Fri Sep 10, 2010 8:42 am
Forum: Wireless Networking
Topic: Panel Antenna v/s Grid Antenna
Replies: 5
Views: 1380

Re: Panel Antenna v/s Grid Antenna

Difference is only antenna pattern. Grid antenna has more narrow.
by aaa
Wed Sep 08, 2010 9:05 am
Forum: RouterBOARD hardware
Topic: Rb14 and power
Replies: 6
Views: 945

Re: Rb14 and power

My mistake, there is 5A power regulator. If you see 1084 label on power regulators you can use four R52Hn
by aaa
Tue Sep 07, 2010 3:58 pm
Forum: RouterBOARD hardware
Topic: RB 493 or RB 433 witch 3 R52Hn?
Replies: 3
Views: 822

Re: RB 493 or RB 433 witch 3 R52Hn?

It's no good. Bad heat dissipation and possible bad contact in mPCI socket.
by aaa
Tue Sep 07, 2010 8:36 am
Forum: RouterBOARD hardware
Topic: Rb14 and power
Replies: 6
Views: 945

Re: Rb14 and power

You are right Tom, but last two or three years RB14 comes with 3A regulator - that mean 1,5A ( 5W ) for each mPCI or 3A (10W ) for each if you use two wireless connected to own regulator. And of course RB14 support PCI bus without 5V.
by aaa
Mon Sep 06, 2010 8:56 am
Forum: RouterBOARD hardware
Topic: R52Hn heat/problems
Replies: 20
Views: 3782

Re: R52Hn heat/problems

This card take 2,1A@3,3V if you stack them you make many heat in very small place. You need just additional fan system.
by aaa
Fri Sep 03, 2010 2:13 pm
Forum: Wireless Networking
Topic: RB411 question
Replies: 2
Views: 552

Re: RB411 question

If you use one ssid , you can use one wireless card with two antenna.
by aaa
Fri Sep 03, 2010 9:06 am
Forum: RouterBOARD hardware
Topic: R52Hn heat/problems
Replies: 20
Views: 3782

Re: R52Hn heat/problems

What kind of antenna you use with R52Hn?
by aaa
Thu Sep 02, 2010 12:31 pm
Forum: RouterBOARD hardware
Topic: RB750 problem
Replies: 3
Views: 1275

Re: RB750 problem

Bad Block Management Devices with Bad Blocks have the same quality level and the same AC and DC characteristics as devices where all the blocks are valid. A Bad Block does not affect the performance of valid blocks because it is isolated from the bit line and common source line by a select transisto...
by aaa
Tue Aug 31, 2010 4:48 pm
Forum: RouterBOARD hardware
Topic: RB800+RB/502 RB Hang
Replies: 12
Views: 3925

Re: RB800+RB/502 RB Hang

Yes, without this fix with RB600,RB800 possible problem with PCI bus when daughterboard wireless is used. Just put it like on picture or contact with local Mikrotik dealer for assistance.
by aaa
Tue Aug 31, 2010 9:03 am
Forum: RouterBOARD hardware
Topic: RB 750 DEAD ???
Replies: 9
Views: 2982

Re: RB 750 DEAD ???

I think no, this capacitance can vary in big range without any problem.All new production use Suscon MG series - it provide three times longer life time and I hope quality can be much better.
by aaa
Mon Aug 30, 2010 3:41 pm
Forum: RouterBOARD hardware
Topic: RB532 and RB604
Replies: 3
Views: 658

Re: RB532 and RB604

RB532r5 provide 16,5W for extension card. Each R5H max power consumption is ~5W You need check total power consumption and I am not sure about RB532 CPU speed.
by aaa
Mon Aug 30, 2010 11:57 am
Forum: RouterBOARD hardware
Topic: RB 750 DEAD ???
Replies: 9
Views: 2982

Re: RB 750 DEAD ???

Is it Suscon SJ series capacitors?
by aaa
Mon Aug 30, 2010 11:30 am
Forum: RouterBOARD hardware
Topic: RB532 and RB604
Replies: 3
Views: 658

Re: RB532 and RB604

Yes, it's work. Tested with RB604 and four additional R52 and R52-350 wireless card.
by aaa
Mon Aug 30, 2010 11:16 am
Forum: RouterBOARD hardware
Topic: RB411-433 RJ45 port replacement source
Replies: 6
Views: 2403

Re: RB411-433 RJ45 port replacement source

No, for RB433 it's IP175C from IC+. For 411 it's KSZ8041 or AR8012. All this RB is simpple for repairing. I ask about dealer not regading warranty policy. If you are from Latvia, most Latvian MT dealer have accomplished engineering staff and necessary equpiment and offer after warranty repairing for...
by aaa
Fri Aug 27, 2010 3:13 pm
Forum: RouterBOARD hardware
Topic: RB411-433 RJ45 port replacement source
Replies: 6
Views: 2403

Re: RB411-433 RJ45 port replacement source

Hi! You not need replace 47F-1205BGYDNW2NL it's never burn after lightening. If it's not secret what's your MT dealer? Else do you make ground for your outdoor instalation?
by aaa
Thu Aug 26, 2010 11:59 am
Forum: Wireless Networking
Topic: 802.11n 2 radios each point.
Replies: 5
Views: 958

Re: 802.11n 2 radios each point.

What mPCI to PCI adapters you use?
by aaa
Wed Aug 25, 2010 10:19 am
Forum: Wireless Networking
Topic: calibrating mikrotik voltage readings?
Replies: 1
Views: 473

Re: calibrating mikrotik voltage readings?

RB450G voltage monitor get only approx. value. Volatge reading offset is directly related to CPU load. You can try different RouterOS version and check what is more precise. All new RB version have more preicse voltage monitor.
by aaa
Wed Aug 25, 2010 9:44 am
Forum: RouterBOARD hardware
Topic: POE problem
Replies: 4
Views: 831

Re: POE problem

Mostly this diodes burn together with PHY ADM7001 after lightening.Some times burn only one of this diodes. Take multimeter check resistance between 1,2 pin and 3,6 ping if it's 150ohms or more - this swich can work. Or replase burned diode with any new 1A 100V schottky diode.
by aaa
Wed Aug 25, 2010 9:25 am
Forum: RouterBOARD hardware
Topic: RouterBOARD R52Hn miniPCI network adapter Antenna Question
Replies: 8
Views: 3904

Re: RouterBOARD R52Hn miniPCI network adapter Antenna Questi

Transmit and receive over two connectors in the same time slots use for MIMO (802.11n ) wireless connection in that way increase speed of data exchange between two R52Hn wireless cards.
There is more information
http://en.wikipedia.org/wiki/MIMO
by aaa
Tue Aug 24, 2010 9:43 am
Forum: RouterBOARD hardware
Topic: Why RB600 don´t have a Voltage Monitor?
Replies: 7
Views: 2190

Re: Why RB600 don´t have a Voltage Monitor?

It is hardware feature with software support. If there don't have necessary hardware you can't do anything with software :))
by aaa
Tue Aug 24, 2010 8:27 am
Forum: RouterBOARD hardware
Topic: POE problem
Replies: 4
Views: 831

Re: POE problem

On RB532r5 burned one of this diode ( D23 or D24 ). Replace diode or look for fast ethernet swich where RX TX pair are not DC shorted. Is it ether1 working on this RB?
by aaa
Tue Aug 24, 2010 8:18 am
Forum: RouterBOARD hardware
Topic: Dead RB750?
Replies: 10
Views: 2985

Re: Dead RB750?

Is it ACT led goes off after power on RB?
by aaa
Mon Aug 23, 2010 10:03 am
Forum: RouterBOARD hardware
Topic: Problematic eth1 on some 411AH
Replies: 1
Views: 460

Re: Problematic eth1 on some 411AH

Can you ask tower owner what else located on this tower. If it is some high power VHF equpiment (FM transmitters) - RF interference is possible. Use EMI choke at both sides of cable. As close as possible with 100Base-T device.
by aaa
Mon Aug 23, 2010 8:58 am
Forum: RouterBOARD hardware
Topic: Near all my RB532 show ethernet tx/rx drops
Replies: 2
Views: 670

Re: Near all my RB532 show ethernet tx/rx drops

Try put RouterOS 2.9.51 on all RB532
by aaa
Mon Aug 23, 2010 8:56 am
Forum: RouterBOARD hardware
Topic: RouterBOARD R52Hn miniPCI network adapter Antenna Question
Replies: 8
Views: 3904

Re: RouterBOARD R52Hn miniPCI network adapter Antenna Questi

On R52Hn wireless card both antenna connector are Main. This is only one wireless NIC and you can use only one corresponded modulation and band.
by aaa
Wed Aug 18, 2010 2:18 pm
Forum: RouterBOARD hardware
Topic: Old boards ex RB153 LED controle
Replies: 2
Views: 480

Re: Old boards ex RB153 LED controle

You can use only user LED. Other LEDs connected to mPCI and can use only with associated mPCI device.
by aaa
Wed Aug 18, 2010 9:00 am
Forum: RouterBOARD hardware
Topic: is TE100-S4PCI compatible with mikrotik
Replies: 4
Views: 568

Re: is TE100-S4PCI compatible with mikrotik

Yes, four independent NIC
by aaa
Mon Aug 16, 2010 12:10 pm
Forum: RouterBOARD hardware
Topic: is TE100-S4PCI compatible with mikrotik
Replies: 4
Views: 568

Re: is TE100-S4PCI compatible with mikrotik

I think it's not supported by RouterOS. Use RB44 or RB44GV.
by aaa
Fri Aug 13, 2010 1:20 pm
Forum: RouterBOARD hardware
Topic: rb532 often switched on and off
Replies: 7
Views: 1047

Re: rb532 often switched on and off

Try swich to low voltage mode. Test with 22V-10V PSU
by aaa
Wed Aug 11, 2010 1:15 pm
Forum: RouterBOARD hardware
Topic: RB800 heat problem advisory
Replies: 48
Views: 16154

Re: RB800 heat problem advisory

First test only with four onboard wireless and then add additional daughterboard with other wireless.
by aaa
Thu Aug 05, 2010 9:12 am
Forum: RouterBOARD hardware
Topic: RB450 Capacitors problem?
Replies: 120
Views: 38255

Re: RB450 Capacitors problem?

470uF@16V is OK. Check again your soldering carefully that you not make any shorts. Else try replace that one cap. what located nearly from swich chip.
by aaa
Wed Aug 04, 2010 5:42 pm
Forum: RouterBOARD hardware
Topic: RB411 Ethernet Freezes (No receive)
Replies: 75
Views: 24038

Re: RB411 Ethernet Freezes (No receive)

Do you have grounded devices at both sides of LAN cable. Check each device ground with this tester http://www.sourcingmap.com/larger_image.php?products_image=ux_a09101300ux0284_ux_&p=48857&products_imageType=jpg I got many troble from LAN connected customers if theirs PC not grounded. It have some 1...
by aaa
Wed Aug 04, 2010 10:36 am
Forum: Wireless Networking
Topic: About interference
Replies: 5
Views: 750

Re: About interference

Depends on TX-power , spectral mask , frequency spacing and attenuation between antenna.
by aaa
Wed Aug 04, 2010 9:13 am
Forum: RouterBOARD hardware
Topic: Time Travel with the RB133
Replies: 5
Views: 754

Re: Time Travel with the RB133

Can you make and post photo?
by aaa
Tue Aug 03, 2010 10:40 am
Forum: RouterBOARD hardware
Topic: Faulty ethernet port on RB411?
Replies: 4
Views: 1377

Re: Faulty ethernet port on RB411?

RB411 have only one ethernet port. Can you test it with other device like PC , laptop or fast ethernet swich.
by aaa
Tue Aug 03, 2010 9:01 am
Forum: RouterBOARD hardware
Topic: Time Travel with the RB133
Replies: 5
Views: 754

Re: Time Travel with the RB133

What happen with your RB433 :)) ?
by aaa
Thu Jul 29, 2010 9:13 am
Forum: RouterBOARD hardware
Topic: New RB 750G does not work
Replies: 3
Views: 802

Re: New RB 750G does not work

There no Ethernet activity LED. Just PWR , ACT and port LEDs. If ACT led not turn off RB hang in BIOS stage.
by aaa
Wed Jul 28, 2010 10:19 am
Forum: RouterBOARD hardware
Topic: Routerboard 433 and 411 series lockups on power blips
Replies: 3
Views: 873

Re: Routerboard 433 and 411 series lockups on power blips

Just connect PSU to RB and make ~1sec. power outage - on...off...on...off many time if RB power hang up that mean this RB have inadequate capacitor. All RB411U and RB433r3 have new power design.
by aaa
Tue Jul 27, 2010 4:11 pm
Forum: RouterBOARD hardware
Topic: RouterOS x86 IRQ Query/Problem
Replies: 6
Views: 741

Re: RouterOS x86 IRQ Query/Problem

Ok, may be your problem is not power related but your calculation ir wrong. OK take 18W @ 3,3V = 5,45A RB14 use LDO and 5V like power source. 5,45 x 5V = 27,25W. Try change RB14 , R52Hn and PCI slot may be it's broken.
by aaa
Tue Jul 27, 2010 11:23 am
Forum: RouterBOARD hardware
Topic: RouterOS x86 IRQ Query/Problem
Replies: 6
Views: 741

Re: RouterOS x86 IRQ Query/Problem

2xR5H= 3,2A ; 2xR52Hn=4,24A Total= 7,44A x 5V = 37,2W You overload your PC. Else check LDO on each RB14, some old batch have 3A LDO that mean 1,5A for each mPCI. Try reduce TX power on all wireless cards to few dBm and test again.
by aaa
Mon Jul 26, 2010 4:04 pm
Forum: Wireless Networking
Topic: What can i do if the Password all was gone?
Replies: 7
Views: 668

Re: What can i do if the Password all was gone?

Just reset configuration - short two circle pads when power on RB.
by aaa
Mon Jul 26, 2010 1:18 pm
Forum: RouterBOARD hardware
Topic: RouterOS x86 IRQ Query/Problem
Replies: 6
Views: 741

Re: RouterOS x86 IRQ Query/Problem

Hi, what wireless cards and mPCI adapter you use ( RB11,RB14 or RB18 )? How much Amps@5V you have on PCI bus. I am not think that is IRQ related problem.
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