Devices Covered By This Document

4	Network Service Module

This Hardware Reference includes information on the following Network

Service Modules (NSMs):

■AT-AR040, four Port Interface Card (PIC) expansion bays

■AT-AR041, eight ISDN Basic Rate S/T interfaces

■AT-AR042, four ISDN Basic Rate S/T interfaces

■AT-AR048, one unchannelised DS3 interface

You can download the complete document set for NSMs, and for your switch or router, from www.alliedtelesis.com/support/software. For more information about the document set and other resources, see “Obtaining Documentation and Resources” on page 23.

Compatible Switches and Routers

The following table shows which NSMs are appropriate for different models of switch and router.

Table 1: Compatible switches and routers for Network Service Modules (NSMs)

Model(s)	AR040	AR041	AR042	AR048

Rapier 8/8 (MT & SC) switch	!	!	!

Rapier 16F-FX (MT-RJ & SC) switch	!	!	!

Rapier 16Fi-FX (MT-RJ & SC) switch	!	!	!

Rapier 24 switch	!	!	!

Rapier 24i switch	!	!	!	!

Rapier 48w switch	!			!

AR816F-FX (MT-RJ & SC)	!	!	!
modular switching router

AR824 modular switching router	!	!	!

AR740 router	!	!	!

AR745 router	!	!	!

AT-AR048 Support

Maximum DS3 packet forwarding rates are achieved only when the AT-AR048 is installed in a Rapier 48w switch, or a Rapier 24i switch whose serial number ends with the letter N or higher. If maximum DS3 performance is not required, you can install the AT-AR048 in any Rapier 24i whose serial number ends in J or later. You can find the serial number on the underside of the switch (Figure 1 on page 5).

C613-03022-00 REV K

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.