Allied Telesis AT-AR048, AT-AR042, AT-AR040-10, AT-AR041-00 manual PIC LEDs, B1, B2

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Network Service Module

PIC LEDs

The following LEDs report operations and faults on PICs, and may be helpful when diagnosing possible AT-AR040 NSM operational faults. The LEDs are located on the faceplate of the respective PIC. The AT-AR024 ASYN4 PIC does not have LEDs.

Table 6: AT-AR020 PRI E1/T1 PIC LEDs

LED

Function

 

 

D Data

[ISDN mode only] Lit when HDLC packets are being exchanged between the

 

switch or router and the ISDN switch over the D (signalling) channel.

 

 

B Data

Lit when HDLC packets are being exchanged between the switch or router

 

and another end system device (normally another switch or router) over any

 

of the B (data) channels.

 

 

Active

Lit whenever operational (i.e., no RAI or AIS set) frames are being received

 

on the respective interface (PRI 0 or PRI 1) from another source.

 

 

NT

[ISDN mode only] Lit when the PRI1 is operating in NT mode. This LED

 

should not be lit during normal operation.

 

 

Table 7: AT-AR021(S) BRI-S/T PIC LEDs

LED

Function

 

 

B1, B2

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

 

channel and flashing when data is being exchanged.

 

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.

 

 

Active

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 that the ISDN interface is correctly connected to a working NT

 

device.

DLit when HDLC packets are being exchanged between the switch or router and the ISDN switch over the D (signalling) channel.

Table 8: AT-AR021(U) BRI-U PIC LEDs

LED

Function

 

 

B1, B2

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.

 

For ISDN, lit when there is a call up over the respective B channel and

 

flashing when data is being exchanged.

 

 

Active

Lit when the U interface is in the Activated state (i.e., it is in a fully

 

operational at layer 1).

DLit when HDLC packets are being exchanged between the switch or router and the ISDN switch over the D (signalling) channel.

C613-03022-00 REV K

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Contents Hardware Reference AT-AR040 AT-AR041 AT-AR042 AT-AR048 Network Service Module Hardware ReferencePage Contents Devices Covered By This Document Compatible Switches and RoutersAT-AR048 Support Hardware Reference Hardware Overview Common FeaturesSupported Port Interface Cards PICs Guidelines and limits for installing PICsInterface numbering LED AT-AR041 and AT-AR042 NSMsLocation of jumpers on BRI NSMs Basic Rate Isdn InterfacesIsdn S/T Interface Cables RJ45 To switch or router To NTBRI S/T loopback plug Testing an AT-AR041 or AT-AR042 NSMPIC DS3 Interface AT-AR048 NSMDS3 Interface Cables Testing an AT-AR048 NSMNetwork Service Module LEDs and What They Mean Switch and Router LEDs for NSMsB1, B2 PIC LEDsReset voip command Hot Swapping the AT-AR040 NSM with PICs Hot SwappingBehaviour of Hot Swapped Interfaces Configured manually Troubleshooting Obtaining Documentation and Resources Network Service Module

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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