Appendix A Technical specifications 55

Table 23 provides the T1/E1 CSU/DSU cable pinouts for a crossover connection.

Table 23 T1/E1 CSU/DSU cable pinouts for crossover connection

Standard-wired

 

Pair number

Special-wired

end 8-pin male

Signal name

and conductor

end 8-pin male

 

 

 

 

1

RXDA<-TXDA

wht/org pair 2A

5

 

 

 

 

2

RXDB<-TXDB

orange pair 2B

4

 

 

 

 

3

not used

wht/grn pair 3A

3

 

 

 

 

4

TXDB->RXDB

blue pair 1B

2

 

 

 

 

5

TXDA->RXDA

wht/blu pair 1A

1

 

 

 

 

6

not used

green pair 3B

6

 

 

 

 

7

not used

wht/brn pair 4A

7

 

 

 

 

8

not used

brown pair 4B

8

 

 

 

 

The cable operates properly if you do not connect pins 3, 6, 7, and 8.

Caution: For crossover connections, do not use Ethernet cable. If you use Ethernet cable the T1/E1 CSU/DSU does not work to specifications. This condition can corrupt the data.

Table 24 provides the T1/E1 CSU/DSU cable pinouts for a straight-through connection.

Table 24 T1/E1 CSU/DSU cable pinouts for straight-through connection

Nortel termination

 

Remote termination

 

 

 

 

Signal

Pin # to Pin #

Signal

 

 

 

 

 

 

 

 

Receive A (RXDA)

1

1

Receive A (RXDA)

 

 

 

 

Receive B (RXDB)

2

2

Receive B (RXDB)

 

 

 

 

not used

3

3

not used

 

 

 

 

Transmit B (TXDB)

4

4

Transmit B (TXDB)

 

 

 

 

Transmit A (TXDA)

5

5

Transmit A (TXDA)

 

 

 

 

not used

6

6

not used

 

 

 

 

Nortel VPN Router Installation — VPN Router 1010/1050/1100

Page 55
Image 55
Nortel Networks 1100, 1050, 1010 manual T1/E1 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.