![DZS ADSL2+ 4-Port Wi-Fi 802.11 N 2x2 Router [6519-W1-NA]](https://cdn.shopify.com/s/files/1/0632/2280/8796/products/dz-6519-w1.jpg?v=1684798321)
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Description
DZS ADSL2+ 4-Port Wi-Fi 802.11 N 2x2 Router [6519-W1-NA]DZS 6500 ADSL2+ family endpoints integrates the 802. 11N WiFi access point is suitable for bandwidth intensive application while allowing easy installation without wiring for high speed internet. DELT or Dual End Loop Test, is a feature that is present the 6200 Family of ADSL2+ CPEs. DELT is primarily used for reactive tests on a loop after a modem has been deployedeither to help troubleshoot a line or to capture a baseline of loop characteristics at
DZS 6500 ADSL2+ family endpoints integrates the 802.11N WiFi access point is suitable for bandwidth intensive application while allowing easy installation without wiring for high speed internet. DELT or Dual End Loop Test, is a feature that is present the 6200 Family of ADSL2+ CPEs. DELT is primarily used for reactive tests on a loop after a modem has been deployed—either to help troubleshoot a line or to capture a baseline of loop characteristics at the time of installation.
Product Features:- 802.11b/g/n Wireless Access Point
- 3G/4G backup via USB Dongle
- Traffic Class Rules based on Protocol, Source IP, Source Port, Destination IP, Destination Port, 802.1p
- Configured through easy-to-use web interface
- TR-069 remote management client certified on industry leading management systems.
- Dimensions: 7.32" (H) x 6.38" (W) x 3.5" (D)
- Weight: 1.28lbs (582g)
- Power: Input: 100-240VAC, 50/60Hz, Output: 12VDC, 1A
- Interfaces: DSL Line: RJ-11, Ethernet: RJ-45 4 Port 10/100BaseT, Wireless: 802.11b/g/n, 2x2, USB 2.0 Type A, WiFi WPS Button, WiFi On/Off Button, Reset Button, On/Off Button
- Wireless Support: Supports IEEE 802.11n, 802.11b and 802.11g simultaneously, Supports network authentication: Open, Shared (WEP 64-bit or 128-bit), 802.1X, WPA, WPA-PSK, WPA2, WPA2-PSK, Mixed WPA2/WPA, Mixe WPA2/WPA-PSK, Wireless Distribution System (WDS), Wireless MAC Filter, AP Isolation - Wireless clients can not communicate with each other when enabled, Xpress Technology - can improve aggregate throughput by up to 75% in mixed networks., Channels 1 - 11, Frequency Range ~ 2.400 - 2.480GHZ, Internal 5dBi Antennae, 100mW
Standards Support
- ATM Support:
ITU-T I.610 F4/F5 OAM Send and Receive/Loop back, Support up to 8 PVC's, RFC 1483/2684 (Bridged/Routed Ethernet over ATM) - Routing/Bridge Support: Transparent Bridge Support, DHCP Server/Relay/Client, DNS Relay Agent, Dynamic DNS Support, DMZ support, Static Routing, RIPv1 and RIPv2, Policy based QoS (TOS, 802.1p, Source/Destination IP Address, Source/Destination Port, Protocol), IGMP v1/v2
- PPP Support: PPPoA, PPPoE, PAP/CHAP authentication
- Security: NAT for Basic Firewall support, Ingress and Egress Packet Filtering, Parental Control, MAC Filtering, Stateful Packet Inspection, DELT support, uPNP support
- Web-based Configuration GUI
- CLI
- Telnet Remote Management
- FTP/TFTP firmware upgrade and configuration backup/restore
- Syslog Support
- TR-069
- Operating Temperature: 32° F to 104° F (0° C to 40° C)
- Storage Temperature: –4° F to 158° F (–20° C to 70 C)
- Operating Humidity: 10% to 95%, non-condensing
- Storage Humidity: 5% to 95%, non-condensing
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4.6 ★★★★★
Based on 29 reviews
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Product Reviews
★★★★★ 5
Great Place to Start
Format: Paperback
Clear and entertaining
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Reviewed in the United States on February 17, 2026
★★★★★ 5
Engaging Read for Beginners and Techies Alike
Format: Paperback
An engaging and accessible exploration of how computers really work. The author breaks down complex concepts into simple, relatable explanations, making topics like binary, logic gates, and basic circuits far less intimidating. For newcomers, it’s a great way to build a foundational understanding of computer theory with just a touch of electrical engineering.
As someone with a technical background, I still found it entertaining; the examples and analogies added fresh ways to frame ideas I already knew. It’s the kind of book that can bridge the gap between “I use computers” and “I understand what’s happening under the hood.”
Highly recommended for anyone curious about what makes hardware and software tick, whether you’re starting from scratch or just want a new perspective.
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Reviewed in the United States on August 19, 2025
★★★★★ 5
CODE is the book you should get.
Format: Paperback
The best book to enter the field. Grateful that Charles Petzold decided to write it, even happier this was one of the first books I picked up.
Recommend to everyone wanting to become a programmer, or just interested in computers.
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Reviewed in the United States on January 12, 2026
★★★★★ 5
If you only buy one technical computer book, this is it
Format: Paperback
Disclaimer: I owned the first edition for years and read it a dozen times, mainly for pleasure since it’s not only informative but also just enjoyable to read. I’m a professional software architect and have dozens of textbooks on computer science and engineering so I’ve been around the block.
This is the kind of book I would buy all for all my friends (if I had more than a couple) and family members (if they were even slightly into computers, which they aren’t sadly). Petzold does an exceptional job at describing digital logic and guides you through building a conceptual CPU from very first principles.
I think his bottom up approach is the way to go and has helped me understand complex topics in an extremely simple way. When I’m not reading fiction, this is my go to bedtime reading.
The second edition has about 100 more pages than the first and some content has been completely reworked and it’s great.
If you ever had even a passing interest in knowing how computers work at a very fundamental level, get this book!
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Reviewed in the United States on January 31, 2023
★★★★★ 4
First programmer?
Format: Paperback
As an ardent reader of the past 1st edition, I was fairly excited to get the latest version. That is, until I encountered the history chapter of the new edition.
For one thing, what I do NOT understand in this second edition is the newly added description of August Ada Byron (countless of Lovelace). The author claims it was Babbage who was the first programmer to design the engines, not Ada. I am not trying to start a futile argument here about who has more or fewer contributions, etc.
What I am trying to assert here is that it is undisputed that Ada (unless the new evidence arises) left *the very first demonstration* of what this seemingly imaginary machine, which didn't even physically exist, was capable of through her program. Because Babbage designed the engine itself, that doesn't automatically put him in the position of a programmer (despite Babbage being a brilliant engineer/scientist and may have had a simple or detailed program in his mind). However, it was Ada who gave a definite touch to programming concepts that ultimately led to modern-day programming. Ada deserves more recognition than a mere "tutorial writer," and she is certainly entitled to the title she deserves.
Other than that, like the previous edition, this book is a must-read for people who are from related/unrelated fields. I always loved the 1st edition, and I would do too with the 2nd. Still, I think history should always be approached with more care, particularly if matters have potential controversies.
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Reviewed in the United States on January 6, 2023