NETGEAR DS309 manual Twisted Pair Cables, RJ-45 Connector

Page 9

Twisted Pair Cables

For two devices to communicate, the transmitter of each device must be connected to the receiver of the other device. The crossover function is usually implemented internally as part of the circuitry in the device. Most ports on hubs and repeaters have media-dependent interfaces with crossover ports. These ports are referred to as MDI-X or normal ports. Computer and workstation adapter cards are usually media-dependent interface ports referred to as MDI or uplink ports.

These two figures illustrate the use of straight-through and crossover twisted pair cables.

Uplink or

Straight-through

twisted pair cable

MDI port

 

1

 

Tx

 

2

 

3

 

Rx

 

6

 

Normal or

Crossover

MDI-X port twisted pair cable

1

Rx

Normal or MDI-X port

1

Rx

2

3

Tx

6

Normal or MDI-X port

1

Rx

Tx

2

3

6

2

3

6 Tx

8146EC

RJ-45 Connector

The RJ-45 connector (shown in the illustration with an RJ-45 plug) is used to connect workstations and hubs through unshielded twisted pair cable. The RJ-45 connector accepts four- pair Category 3 or Category 5 UTP cable. Only two pairs are used for 10BASE-T wiring.

12345678

 

 

8

1

 

 

 

711EA

 

 

 

 

RJ-45

 

Uplink Assignment: Port 9 on the

Connector

Normal Assignment:

Model DS309 Hub

Pin Assignment

 

 

 

 

 

 

 

1

Input Receive Data +

Output Transmit Data +

 

 

 

2

Input Receive Data -

Output Transmit Data -

 

 

 

3

Output Transmit Data +

Input Receive Data +

 

 

 

6

Output Transmit Data -

Input Receive Data -

 

 

 

 

4,5,7,8

Not used

Not used

 

 

 

 

 

Model DS309 Dual Speed Hub Installation Guide

Image 9
Contents Page Start Here FeaturesPackage Contents Front Panel Features Product IllustrationFront Panel LEDs Rear Panel Features Vista RJ-45 Network Ports with Built-in LEDsNormal/Uplink Push Button Daisy Chaining Using Port ApplicationsMbps or 100 Mbps Transmission with the Hub Install the Hub Prepare the SiteConnect Devices to the Hub Key Mbps RJ-45 connector Twisted Pair Cables RJ-45 ConnectorTroubleshooting Information Verify InstallationStatus LEDs Technical SpecificationsTrademarks DS309NA-1
Related manuals
Manual 2 pages 25.42 Kb

DS309 specifications

The NETGEAR DS309 is a robust Network Attached Storage (NAS) solution designed to cater to the needs of home users and small businesses alike. With an emphasis on reliability, performance, and ease of use, this device offers a myriad of features that enhance its functionality as a central data hub.

One of the standout characteristics of the DS309 is its ability to accommodate up to three 3.5-inch SATA hard drives, allowing users to configure a RAID setup for enhanced data redundancy and protection. The supported RAID levels include RAID 0, RAID 1, and RAID 5, giving users the flexibility to choose the configuration that best meets their performance and security needs. The option for hot-swapping drives ensures minimal downtime during upgrades or replacements, making it an excellent choice for businesses that require constant data availability.

In terms of connectivity, the NETGEAR DS309 features multiple USB ports that allow for easy expansion and integration with external storage devices and printers. With high-speed Ethernet capabilities, the DS309 provides swift data transfer rates, ensuring quick access to files across the network. The device is also equipped with a user-friendly web interface that simplifies the management of storage settings and user access rights.

The DS309 utilizes advanced security protocols, including user authentication and data encryption, which are critical for protecting sensitive information. The integrated FTP server functionality allows remote access to files, making it convenient for users who require access from outside the local network. Furthermore, the device supports various media formats, allowing for easy streaming of multimedia content throughout the home or office.

Another significant aspect of the NETGEAR DS309 is its comprehensive backup solutions. The device integrates seamlessly with popular backup software, allowing for automated and scheduled backups of data. Users can also leverage NETGEARā€™s ReadySHARE feature, enabling backup and storage options over Wi-Fi with compatible USB devices.

In summary, the NETGEAR DS309 stands out as a versatile and user-friendly NAS solution, ideal for those seeking reliable storage options with advanced features. With its RAID support, robust security measures, and efficient data management capabilities, it serves as an excellent choice for ensuring that valuable data remains safe and readily accessible. Whether for personal use or business applications, the DS309 demonstrates that effective data storage and management can be both efficient and easy to handle.