Hardware Reference

9

AT-AR041 and AT-AR042 NSMs

The AT-AR041 NSM provides eight ISDN Basic Rate S/T interfaces. The front panel of the AT-AR041 is shown in Figure 3.

Figure 3: AT-AR041 NSM

7

6

5

4

3

2

1

0

Active

Data

The AT-AR042 NSM provides four ISDN Basic Rate S/T interfaces. The front panel of the AT-AR042 is shown in Figure 4.

Figure 4: AT-AR042 NSM

3

2

1

0

Active

Data

The BRI ports use RJ-45 connectors and provide TE interfaces. There are two status LEDs per port. The functions of the LEDs are listed in Table 2.

Table 2: AT-AR041 and AT-AR042 LEDs

LED

State

Function

 

 

 

Active

Green

Lit when the BRI has successfully completed the exchange

 

 

of INFO 1 and INFO 2 signals, and INFO 3 and INFO 4

 

 

signals are present on the link. This means the ISDN

 

 

interface is correctly connected to a working NT device.

 

 

 

 

Off

There is no connection to the ISDN, or the ISDN has

 

 

deactivated the connection.

 

 

 

Data

Amber

For on-demand ISDN, lit when there is a call up over the

 

 

respective B channel.

 

 

For permanent circuits, lit when HDLC packets are being

 

 

exchanged between the switch or router and another TE

 

 

end system device (normally another switch or router)

 

 

over the respective B (data) channel.

 

 

 

 

Flashing Amber

For on-demand ISDN, flashing when data is being

 

 

exchanged.

 

 

 

 

Off

For on-demand ISDN, Off when there is no active

 

 

connection or when continuous data exchange is

 

 

occurring.

 

 

For permanent ISDN circuits, Off when no data exchange

 

 

is occurring.

 

 

 

The AT-AR041 and AT-AR042 support point-to-point links. Point to multi- point links are not supported.

C613-03022-00 REV K

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Allied Telesis AT-AR048, AT-AR040-10, AT-AR041-00 manual AT-AR041 and AT-AR042 NSMs, Led
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AT-AR040, AT-AR040-10, AT-AR048, AT-AR041-00, AT-AR041 specifications

Allied Telesis has established itself as a reputable brand in the networking solutions market, and its AT-AR Series routers further exemplify their commitment to providing robust networking technology. The AT-AR042, AT-AR041, AT-AR041-00, AT-AR048, and AT-AR040-10 models come packed with features designed to meet the diverse demands of modern networks.

The AT-AR042 is a versatile router designed for small to medium-sized enterprises, offering advanced routing capabilities along with integrated security features. It supports a range of protocols, ensuring seamless connectivity across different network types. One of its standout characteristics is its support for Virtual Private Networks (VPNs), facilitating secure remote access for employees.

The AT-AR041 and the AT-AR041-00 models are specifically crafted to deliver dependable performance in both wired and wireless environments. They offer high-speed connectivity and are equipped with Layer 3 routing features, which is essential for effective traffic management in more complex network setups. These models also incorporate essential security protocols, reducing the risk of unauthorized access and ensuring data integrity.

The AT-AR048 extends the range of capabilities further with its advanced features aimed at larger organizations. It offers comprehensive Quality of Service (QoS) functionality, enabling prioritized traffic management which is particularly important in VoIP and video conferencing applications. Its multiple WAN support allows for load balancing, ensuring consistent uptime and optimized network performance during peak usage times.

Lastly, the AT-AR040-10 rounds out the series by offering a cost-effective solution without skimping on the essential features expected of a high-performance router. It comes with an intuitive management interface that simplifies configuration and monitoring, making it a favorable choice for IT staff.

Collectively, these routers incorporate technologies such as IPv6 support, SNMP for network management, and firewall capabilities to provide a secure and efficient networking environment. Additionally, they uphold the industry standards necessary for interoperability with existing systems.

In conclusion, the Allied Telesis AT-AR Series offers a range of products catering to the varying needs of businesses. From small offices to larger enterprises, these routers provide the essential features and capabilities needed to ensure reliable connectivity, secure access, and efficient network management. Their combination of performance, scalability, and security makes them an attractive choice for organizations looking to enhance their networking infrastructure.
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