SKU: 29436008209

DAHUA IS4420-16GT-240 20-Port Managed Industrial Gigabit Switch with 16-Port PoE(Managed)

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Description

DAHUA IS4420-16GT-240 20-Port Managed Industrial Gigabit Switch with 16-Port PoE(Managed)IS4420 16GT 240 20 Port Managed Industrial Gigabit Switch with 16 Port PoE(Managed) > All gigabit port design. > Supports IEEE802. 3af, IEEE802. 3at, Hi PoE and IEEE802. 3bt (red port) standards. > 250 m long distance PoE transmission (10 Mbps). > PoE Watchdog. > Supports STP, RSTP, and ERPS. > IEEE802. 1Q based VLAN configuration. > Manual link aggregation and static LACP. > Desktop mount and DIN rail mount. Product Data Hardware Included Power

IS4420-16GT-240

20-Port Managed Industrial Gigabit Switch with 16-Port PoE(Managed)

> All-gigabit port design.
> Supports IEEE802.3af, IEEE802.3at, Hi-PoE and IEEE802.3bt (red port) standards.
> 250 m long-distance PoE transmission (10 Mbps).
> PoE Watchdog.
> Supports STP, RSTP, and ERPS.
> IEEE802.1Q-based VLAN configuration.
> Manual link aggregation and static LACP.
> Desktop mount and DIN-rail mount.



Product Data

 

Hardware

Included Power Adapter

No

PoE

Yes

Ethernet Port

16

Optical Port

4

Ethernet Port Speed

10/100/1000 Mbps

Optical Port Speed

1000 Mbps

Description of Function Slots

Port1-16: 16 × RJ45 10/100/1000 Mbps
Port17-20: 4 × SFP 1000 Mbps

Debugging

1 × console port

Reset Button

1

Power Supply

53 VDC

Operating Temperature

–40 °C to +75 °C (–40 °F to +167 °F)

Operating Humidity

5%–95% (RH), non-condensing

Power Consumption

Idling: ≤ 6 W
Full load: 240 W

Performance

Layer

L2

Management Type

Yes

MTBF

467,125.73 hours

Switching Capacity

56 Gbps

Packet Forwarding Rate

29.76 Mpps

Packet Buffer Size

4.1 Mbit

Jumbo Frame

10 kByte

MAC Table Size

8K

VLAN Number

4K

VLAN Interface

10

Dynamic ARP

512

Communication Standard

IEEE 802.3, IEEE 802.3u, IEEE 802.3x, IEEE 802.3ab, IEEE 802.3z, IEEE 802.3ad

Feature

PoE Protocol

IEEE802.3af (PoE)/IEEE802.3at (PoE+)/Hi-PoE/IEEE802.3bt

PoE Power

Port 1-2 ≤90 W

Port 3-16 ≤30 W

Full load ≤240W

PoE Power Consumption Management

Yes

PoE Pin Assignment

1, 2, 4, 5 (V+), 3, 6, 7, 8 (V-)

Long Distance PoE Transmission

Yes

Spanning Tree Protocol

STP, RSTP, ERPS

VLAN Function

Yes

Link Aggregation

Static link aggregation; LACP

IEEE 802.3x Flow Control

IEEE 802.3X-based flow control (full-duplex)

Multicast

IGMP Snooping

DHCP Function

DHCP Client
DHCP-Server
DHCP-Snooping

Security

IEEE 802.1×
ACL
ERPS

Equipment Management

WEB (http and https)
Telnet
CLI
SNMP V1/V2C/V3

General

Statics Protection

Air discharge: 8 kV
Contact discharge: 6 kV

Lighting Protection

Common mode: 6 kV
Differential mode: 4 kV

Net Weight

1.35 kg (2.98 lb)

Gross Weight

1.75 kg (3.86 lb)

Product Dimensions

125.4 mm × 75.0 mm × 175.0 mm (4.94" × 2.95" × 6.89") (L × W × H)

Packaging Dimensions

325 mm × 190 mm × 125 mm (12.80" × 7.48" × 4.92") (L × W × H)

Certifications

CE, FCC

Transmission Performance:

Switch power supply voltage 53V.

CAT5E/CAT6. Max. DC resistance < 10 Ω/100 m

Cable(m)

Load Capacity(W)

Bandwidth(Mbps)

IEEE802.3bt 90 W

100

71.3

100

150

62

10

200

51

10

250

40

10

Hi-PoE 60 W

100

53

100

150

50

10

200

47

10

250

37

10

IEEE802.3at 30 W

100

25.5

100

150

25.5

10

200

25.5

10

250

25.5

10

Note: Data from this table was collected by Dahua test lab and is for reference only . The actual transmission distance may vary due to power consumption of connected devices or the cable type and status.
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SKU: 29436008209

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V
Vic Malone
Waukegan, US
★★★★★ 5
Very useful book on the latest Ubuntu distro
Format: Paperback
Disclaimer: Longtime follower and subscriber to Jay LaCroix’s YouTube site, Learn Linux TV. Several high quality authors (Jang, van Vugt, and Ghori the most well known) have been introducing new comers looking for more in-depth guides to Linux to the Red Hat world through their RHCSA Study Guides. The same cannot be said for Ubuntu. While books do exist for Ubuntu, they are too general in this reviewers opinion. A noted exception is Matthew Helmke. The other is Jay LaCroix. Mastering Ubuntu Server, 4th Edition by Jay LaCroix addresses Canonical’s latest Ubuntu release, 22.04 LTS (Jammy Jellyfish). Mr. LaCroix’s book follows the same outline as the RHCSA books of installation, user management, package management, navigating the file system through the terminal, command-line usage, up to and including storage and networking. These chapters lay a solid foundation for the rest of the book, and all but one chapter ends with a section for further viewing or reading which either point to Mr. LaCroix’s well produced videos on his YouTube channel, Ubuntu’s wiki, or to one of several informative websites. The YouTube videos are a good complement to the book, and also raise the bar for what we as readers should expect from other authors and publishers. The last part of the book was my favorite. Where as the RHCSA books are confined to the scope of the test they are aimed at, Mastering Ubuntu Server has no restrictions. Chapters covering the installation of databases (MariaDB), web servers (both Apache and Nginx), virtualization (QEMU/KVM), containerization (LXD and Docker), Ansible, AWS, and Terraform along with their corresponding videos (except for Terraform) create a comprehensive learning platform. Having worked through some of these chapters along with the videos, one does get up to speed much quicker in understanding while adding a new skill to their skillset. This is important in a competitive job market. I would recommend Mastering Ubuntu Server, 4 th Edition highly to anyone wanting something current for the 22.04 LTS distribution. Having said that, I do have some admittedly subjective criticisms. In the chapter on storage, the fdisk command is introduced for formatting and partitioning disks. In an industry where it is becoming less likely to install a hard drive of 2TB or less and manufacturers have 20TB hard drives in their product line, why not also introduce the gdisk command. My other criticism is directed at the virtualization chapter and its use of Virtual Machine Manager for KVM. I got my start working with KVM through the Virtual Machine Manager as well, but on the advice of a Systems Engineer I knew, transitioned to creating, configuring and managing all my VMs through the command-line only. I wished that the author pushed more in that direction. As I said, subjective opinions, and minor overall, for a well written book by Jay LaCroix.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 9, 2022
R
Verified Purchase
Roger Beickel
Dallas, US
★★★★★ 3
I should have looked somewhere else.
Format: Paperback
Not very helpful. I wanted a book that would help guide me through setting up a web server. There should have been a more complete step by step guide comparing traditional methods with newer updated methods.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 9, 2025
P
Verified Purchase
princesscoldheart
Natrona Heights, US
★★★★★ 5
Organized well. You can read it section by section. Fantastic information. Clearly presented.
I like this book better than "what to expect" because this one does a better job of what you'll ACTUALLY expect versus telling you the throngs of horrible things that could happen to you or your baby. I'd rather be informed than mentally prodded with scary information. On one hand, it's good to know what could happen, so the other books you've probably already ordered are good to skim through, but this book I recommend reading all the way through. Easy to read, you'll actually have TIME to read it because you can read the age your baby is instead of a book that's all mixed up and organized by diseases and threats. Clear photos and explanations and tips on how to make your life and baby's life easier and better. I've understood my baby's needs better because of this book. I feel really glad I got it because it was the only book that really helped my daily life with my newborn.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 21, 2013
T
Verified Purchase
thibault rosazza
Phoenix, US
★★★★★ 5
Useful
Format: Hardcover
Comprehensive book from 0 to 1 year. This book provide good tips and tricks on how to raise and take care of your newborn. Well designed, we come back to it time to times to get some help and support.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 18, 2025
J
Verified Purchase
James Henderson
Alexandria, US
★★★★★ 5
we loved this well-illustrated book
As first-time parents, we loved this well-illustrated book, recommended it to one couple, and recently ordered another for an expecting couple in our family. Rather than grouping content by topic, the book is ordered chronologically, starting with Day 1 and progressing throughout the first year. Don't expect to read straight through; there are lots of pictures, sidebars, notes, etc. This makes it easier to find and retain relevant information (as opposed to reading a 100-page section on "Diet and Nutrition"). Provides a thorough treatment of most of the common issues, fun discoveries and concerns you encounter as a new parent.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 6, 2015

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