Straight and crossover cable configuration

There are two types of the wiring: Straight-Through Cables and Crossover Cables. Category 5 UTP/STP cable has eight wires inside the sheath. The wires form four pairs. Straight-Through Cables has same pinouts at both ends while Crossover Cables has a different pin arrangement at each end.

In a straight-through cable, wires 1,2,3,4,5,6,7 and 8 at one end of the cable are still wires 1~8 at the other end. In a crossover cable, the wires of 1,2,3,6 are reversed so that wire 1 become 3 at the other end of the cable, 2 becomes 6, and so forth.

To determine which wire is wire 1, hold the RJ-45 cable tip with the spring clip facing towards the ground and the end pointing away from you. The copper wires exposed upwards to your view. The first wire on the far left is wire 1. You can also refer to the illustrations and charts of the internal wiring on the following page.

Straight-Through Cabling

 

Figure 3

Wire

 

Becomes

1

 

1

2

 

2

3

 

3

6

 

6

Cross-Over Cabling

 

 

Figure 4

 

 

 

 

Wire

 

Becomes

 

 

 

1

 

3

 

 

 

2

 

6

 

 

 

3

 

1

 

 

 

6

 

2

 

Note:

To prevent loss of signal, make sure that the length of any twisted-pair connec-

 

tion does not exceed 100 metres.

 

 

NB5Plus4/W Quick Start Guide

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NetComm NB5Plus4 manual Straight and crossover cable configuration, Cross-Over Cabling
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NB5Plus4 specifications

The NetComm NB5Plus4 is a sophisticated ADSL modem/router designed to cater to the diverse needs of both home and small office users. Launched in an era when high-speed internet became a necessity, this router offered a blend of performance, versatility, and affordability, making it a popular choice among consumers.

At its core, the NB5Plus4 features ADSL2/2+ technology, which enables users to achieve higher download and upload speeds compared to traditional ADSL technology. With its capability to support speeds of up to 24 Mbps downstream and 1 Mbps upstream, this router serves as a robust solution for bandwidth-intensive applications such as streaming video, online gaming, and large file transfers. This high-speed connectivity is essential for multiple users in a household or office environment, ensuring smooth and uninterrupted internet access.

One of the standout characteristics of the NB5Plus4 is its integrated 4-port Ethernet switch. This feature allows users to connect multiple wired devices directly to the router, creating a stable and fast network for laptops, desktops, and gaming consoles. Additionally, the device supports wireless connectivity through its built-in Wi-Fi capabilities, which comply with the IEEE 802.11g standard, providing users with wireless speeds of up to 54 Mbps. This dual functionality makes it ideal for a variety of networking scenarios.

The NB5Plus4 also boasts advanced security features, ensuring that users' data and privacy remain protected. It includes a firewall, NAT (Network Address Translation), and support for WPA/WPA2 encryption protocols, effectively safeguarding against unauthorized access and potential cyber threats.

Moreover, the device is user-friendly, with a web-based graphical user interface that simplifies the setup and management process. Users can easily configure network settings, manage connected devices, and monitor internet usage through this intuitive interface.

In summary, the NetComm NB5Plus4 combines ADSL2/2+ technology with Ethernet and wireless connectivity, making it a well-rounded router for modern internet needs. With its focus on speed, security, and user accessibility, it remains a reliable choice for those seeking efficient home or small office networking solutions.
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