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Description
Dahua ARM9A4-W2(868) AirShield Draadloze Multi-IO-zenderProductbeschrijving De Dahua ARM9A4 W2(868) draadloze multi IO zender verbindt bedrade detectoren en sirenes naadloos met moderne draadloze systemen. Met 16 alarmingangen, 4 uitgangen, netwerkconnectiviteit en batterijvoeding is hij ideaal voor de integratie van bestaande systemen. De draadloze Multi IO zender maakt naadloze connectiviteit met de alarmhub mogelijk via zowel draadloze radiofrequentie als een bekabeld netwerk. Hij fungeert als een brug
Productbeschrijving
De Dahua ARM9A4-W2(868) draadloze multi-IO-zender verbindt bedrade detectoren en sirenes naadloos met moderne draadloze systemen. Met 16 alarmingangen, 4 uitgangen, netwerkconnectiviteit en batterijvoeding is hij ideaal voor de integratie van bestaande systemen.
De draadloze Multi IO-zender maakt naadloze connectiviteit met de alarmhub mogelijk via zowel draadloze radiofrequentie als een bekabeld netwerk. Hij fungeert als een brug en verbindt de alarmhub met de bestaande bedrade detector en sirene. Hierdoor kunnen geactiveerde alarmen van de bedrade detector naar de alarmhub worden verzonden, die vervolgens commando's naar de sirene stuurt. Dit maakt het eenvoudig om uw bestaande bedrade detectors en sirenes te integreren in het nieuwe draadloze alarmsysteem. Hij bespaart kosten en breidt uw beveiligingsoplossing draadloos uit.
Specificaties
| Port | |
| Alarmingang | Ondersteunt lokale 16-kanaals alarminvoer, kanalen 1 tot 6 ondersteunen pulsdetectie en kanalen 1 tot 16 ondersteunen 0EOL/EOL/2EOL/3EOL. |
| Alarmuitgang | Ondersteunt 4 lokale kanalen (max. 30 VDC, 3A) |
| Netwerkmodus | Ethernet |
| Hulpvermogenuitgang | 2 ingebouwde hulpuitgangen, 14,5V, totaal 2A |
| Functie | |
| Indicatielampje | 1 × indicator (indicatorstatus) |
| Knop | 1 × schakelaar |
| Update op afstand | Ondersteunt cloudupdates |
| Detectie van lage batterijspanning | Ja |
| Manipulatie | Ja |
| Technisch | |
| LED-indicator | 1 × indicator |
| Scenario | Binnen |
| Draadloze | |
| Draagfrequentie | 868 MHz |
| Zendervermogen (EIRP) | limiet 25 mW |
| Communicatiemechanisme | Tweewegs |
| Communicatieafstand | RF: Tot 1600 m (5249,34 ft) in een open ruimte |
| Versleutelingsmodus | AES128 |
| Frequentiehopping | Ja |
| Algemeen | |
| Voeding | 100-240 VAC |
| Voedingstype | Type A |
| Standbytijd | Statische stand-by: tot 30 uur |
| Drempelwaarde voor lage batterijspanning | 11.000 mV |
| Drempelwaarde voor batterijherstel | 12.000 mV |
| Stroomverbruik | 220 VAC ruststroom (40 mA Irms) Maximale stroomsterkte 220 VAC bij 2A belasting + lading (315 mA Irms) |
| Bedrijfstemperatuur | –10 °C tot +50 °C (+14 °F tot +122 °F) |
| Bedrijfsvochtigheid | 10%–90% |
| Productafmetingen | 304 mm × 235 mm × 90,8 mm (11,97" × 9,25" × 3,57") |
| Nettogewicht | 1,22 kg (2,69 lb) |
| Brutogewicht | 1,78 kg (3,92 lb) |
| Installatie | Wandmontage |
| Behuizingsmateriaal | PC + ABS |
| Uiterlijke kleur | Wit |
| Bescherming | IP30 |
| Certificeringen | CE |
| Anticorrosieniveau | Basisbescherming |
| Bewaartemperatuur | –10 °C tot +55 °C (+14 °F tot +131 °F) |
| Opslagvochtigheid | 10%–90% |
| Verpakkingsafmetingen | Losse verpakking: 269 mm × 140 mm × 280 mm (10,59" × 0,55" × 11,02") (L × B × H) Beschermende verpakking: 585 mm × 443 mm × 399 mm (23,03" × 17,44" × 15,71") (L × B × H) |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 5
Fantastic Shoe for the Price
Size: 9.5 Wide, Color: Wingtip Black
Okay, I’m used to spending big bucks on men’s dress shoes. I’m talking $300 plus for American made shoes. They are recraftable (resole-able) for another $100 each time.
But since Covid, I don’t go to the office as often. One of my black dress shoes needs to be re-soled, and it will be. Just not now.
So I ran into these shoes on Amazon. It’s hard to argue with the price. Literally 10% of what I have been paying. So, are these shoes 90% lower in quality?
The short, simple answer is, surprisingly, no. Just the opposite.
Upon receipt, I inspected them carefully and they looked pretty darned decent. I was looking for any excuse to plop them back in the box and return them. I couldn’t find anything.
I appreciate that the leather upper is smooth and mildly shiny. This is a wing tip style shoe, so I’m impressed that the extensive stitching was evenly spaced. The leather detailing that I expect on a wing tip is also all there.
Inside the shoe, it is lined from the toes all the way to the heel box… nice! And that leather feels surprisingly supple. That is something I would expect on a much more expensive shoe. But definitely not at this price point.
Hmm.
I even liked the wax laces they chose. They are a little thicker and have more than adequate length. The shoe’s eyelets have interior facing metal grommets to protect against stretching and tear out of the leather and helps protect the laces against friction wear, as they are tightened and loosened over time. Now having that detail, at this price point, has raised both of my eyebrows.
Double hmm. Now I am really impressed.
The only thing that I didn’t like was that the stitching—that joins the uppers to the sole—is white. I needed to polish these shoes anyway, so I figured I’d see what would happen if I put black polish on the stitching.
I’m happy to say that the uppers shine up very nicely, to a high gloss. This was done with just a little bit of buffing, using a traditional horse hair bristled brush. And followed by a buffing cloth. Although I didn’t do it, the leather is smooth enough that I probably could have spit shined them.
And those pesky white stitches on the top side of the soles? Well I’m happy to report that they are now definitely black.
Turning the shoe over, I can visually see a lump where the shank is supposed to be. That’s a good thing. Not all shoes have a shank. It helps to support the arch. That’s another nice detail. I am expecting the shank to be plastic at this price point. So I am utterly shocked to report to you that a magnet sticks to the bottom of the shoe. That shank is steel! Now I am amazed! We’re talking mind blown, Purple smoke everywhere.
Speaking of details, I was very surprised to see the nicely done wing tip detailing, from on top of the shoe, carried over to the bottom of the sole. Wow. I have never seen that before. That’s surprising.
Now it is important to point out that the sole is some man made material. Definitely not leather. But that’s okay. Especially in the wet, leather wears out quickly, if you don’t wear rubber over shoes. One less thing to fuss about.
The heel itself has a band/layer of rust brown material sandwiched between black layers. I wonder if that is a cork or bamboo material? Having walked in these shoes, on concrete and tile floors, last week, there is a noticeable level of cush, or give. They will definitely not to be confused with sneakers. But for dress shoes, this is a pleasant and surprising experience.
The first day, I wore them at home, over the weekend and I’m glad I did that. They needed time to adjust to my feet. Any dress shoe that I have ever worn needs that.
But after that, these shoes have been pleasant enough to walk around in at work.
I’d have to say that these shoes give me at least 90% of what I would expect from my $300+ shoes for around 10% of the cost.
In my estimation, at their current price point, they constitute an excellent deal.
And especially if you are just breaking into the business world and need a good pair of interview shoes, these are definitely respectable… just be sure to put black polish on the white stitches.
Oh, BTW, I have wider feet and I ordered the shoe wide. After the initial stretching, they fit nicely.
So, in the final analysis, what do I think? I have to say, yes, these shoes definitely get my recommendation. Especially if price is a huge factor, then these shoes constitute an excellent deal.
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Reviewed in the United States on March 20, 2023
★★★★★ 5
Very Satisfied
Size: 10.5, Color: Black
Excellent Value . Very well made shoes . Shoes were true to size ! I am going to order in Brown also !
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Reviewed in the United States on June 9, 2026
★★★★★ 5
Great dress shoe
Size: 10.5 Wide, Color: Black
Wow. Very impressed with these.
Would purchase again.
Comfortable enough for my teenage son, my husband and I very impressed with their look. Great for any special occasion.
Ours appear to be all leather. Even the sole. These will last a lifetime if cared for.
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Reviewed in the United States on May 20, 2026
★★★★★ 3
Ok. Not great
Size: 8.5 Wide, Color: Brown
They look great but not that comfortable
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Reviewed in the United States on May 6, 2026
★★★★★ 5
Great shoes
Size: 10 Wide, Color: Brown, Size: 10 Wide, Color: Brown
This shoe is incredibly comfortable and durable.
I work in custodial work as management. However, sometimes I have to help my team when we are low manned. Just recently I had to help my team auto scrub a restroom. My shoes felt lightweight and were completely easy to clean. I was worried I would be slipping on sudsy water. To my surprise, these shoes gripped on to the floor nicely.
I love the versatility of having a working shoe with the great style Bruno Marc provides. The shoe is breathable and true to size. I ordered the black pair as well and have had them for about 3 months. Highly recommend these amazing shoes.
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Reviewed in the United States on May 28, 2026