50 Appendix A Technical specifications

Use cable that is wired in accordance with EIA-568-A wiring style. This wiring style ensures that a twisted pair inside the patch cord carries the transmit signal (pins 1 and 2) and the receive signal (pins 7 and 8). Nortel strongly recommends that you use factory-made patch cords.

You connect the 56/64K CSU/DSU WAN interface card to the service provider network using a straight-through cable or a crossover cable, depending on how the service provider wired its jack.

For a straight-through connection, you can use a standard Category 5 (Ethernet) straight-through cable.

For a crossover connection, you cannot use a standard Category 5 crossover cable. Do not interchange the 56/64K CSU/DSU crossover cable and the Ethernet crossover cable.

Table 18 provides the 56/64K CSU/DSU cable pinouts for a crossover connection.

Table 18 56/64K CSU/DSU cable pinouts for crossover connection

Nortel termination

 

Remote termination

 

 

 

 

Signal

Pin # to Pin #

Signal

 

 

 

 

 

 

 

 

Transmit tip

1

7

Receive tip

 

 

 

 

Transmit ring

2

8

Receive ring

 

 

 

 

not used

3

3

not used

 

 

 

 

not used

4

4

not used

 

 

 

 

not used

5

5

not used

 

 

 

 

not used

6

6

not used

 

 

 

 

Receive tip

7

1

Transmit tip

 

 

 

 

Receive ring

8

2

Transmit ring

 

 

 

 

The cable operates properly if you do not connect pins 3, 4, 5, and 6.

Caution: For crossover connections, do not use Ethernet cable. If you use Ethernet cable, the link cannot be established.

NN46110-313 02.01

Page 50
Image 50
Nortel Networks 1010, 1050, 1100 manual 56/64K CSU/DSU cable pinouts for crossover connection

1010, 1050, 1100 specifications

Nortel Networks 1100 series is a suite of innovative communication solutions designed to enhance voice and data capabilities for businesses of all sizes. Originally launched as part of Nortel’s extensive portfolio, the 1100 series focuses on delivering advanced technologies that ensure reliable and scalable performance.

One of the most prominent features of the Nortel Networks 1100 series is its robust voice over IP (VoIP) capabilities. This allows businesses to make and receive calls over the internet, significantly reducing traditional telephony costs while enhancing call quality. The series supports multiple codecs, enabling users to choose the most suitable audio quality based on their bandwidth availability.

The Nortel 1100 series also boasts a user-friendly interface, making it accessible for employees at all levels of technical expertise. The phones feature a high-resolution display and programmable soft keys, allowing users to customize their experience and access frequently used features with ease.

Another characteristic presented in the Nortel 1100 series is its support for a wide range of applications, including unified communications. This integration streamlines various communication channels, allowing users to seamlessly switch between voice, video, and instant messaging. Consequently, collaboration is greatly enhanced, improving overall productivity within organizations.

In terms of security, the Nortel 1100 series implements industry-standard protocols to ensure all communications are encrypted and protected from potential threats. This focus on security is crucial in today's digital landscape, where data breaches can have significant ramifications for both businesses and stakeholders.

Moreover, the Nortel 1100 series is designed for scalability. Businesses can start with a few units and easily expand their communication solutions as their operations grow. This flexibility makes it an attractive option for both small businesses and larger enterprises.

Power over Ethernet (PoE) capability is another feature of the Nortel 1100 series, simplifying installation by eliminating the need for separate power cables. This streamlining not only reduces installation costs but also provides a neat and organized workspace.

In summary, the Nortel Networks 1100 series stands out for its blend of VoIP capabilities, user-friendly design, application support, strong security measures, scalability, and PoE functionality. These characteristics make it an appealing choice for companies looking to modernize their communication infrastructure while ensuring reliability and efficiency.