Allied Telesis AT-AR021 (S) BRI-S/T, AT-AR024ASYN4, AT-AR023 SYN manual Jumper Function Default

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Port Interface Card

7.Unpack the PIC.

In an antistatic environment, remove the PIC from its packing material. Be sure to observe ESD precautions.

Warning Do not attempt to install a PIC or any other expansion option without observing correct antistatic procedures. Failure to do so may damage the switch or router, PIC, or expansion option. If you are unsure what the correct procedures are, contact your authorised Allied Telesis distributor or reseller.

8.If the PIC has jumpers, check they are correctly set.

Warning Do not attempt to change any jumpers, DIP switches, or other hardware configurations while the switch or router is connected to a power supply, redundant power supply, or a ‘live’ network. Dangerous voltages may be present on some parts of the board, even if the switch or router is turned off.

AT-AR020 PRI E1/T1 and AT-AR021(S) BRI-S/T PICs have user-configurable jumpers. Check all jumpers are set correctly on the new PIC, as shown in Table 1 and Table 2. Early versions of the AT-AR020 PIC also have a J3 interface jumper. If present, this jumper must be installed for E1 mode and removed for T1 mode. The AT-AR021(S) V2 hardware revision, identified by the label “AR021 V2” on the board, supports both TE and NT mode. Jumper J4, when installed, selects NT mode. The PIC should be configured as a TE for normal operation.

Table 1: Functions of jumpers on the AT-AR020 PRI E1/T1 PIC board

Jumper

Function

Default

 

 

 

J1

ISDN NT mode (installed, test only) or

Not installed.

 

TE mode (not installed).

 

 

 

 

J2

T1 mode (installed) or E1 mode (not installed).

Installed.

 

 

 

J3

E1 mode (installed) or T1 mode (not installed).

-

 

Only present on earlier versions of the PIC.

 

 

Table 2: Functions of jumpers on the AT-AR021(S) BRI S/T PIC board

 

 

 

Jumper

Function

Default

 

 

 

J1

100Ω termination for TX.

Not installed.

 

 

 

J2

100Ω termination for RX.

Not installed.

 

 

 

J4

ISDN NT mode (installed) or TE mode (not

Not installed.

 

installed). Only present on V2 hardware revision

 

 

of PIC.

 

 

 

 

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Contents Installation and Safety Guide Installation and Safety Guide Port Interface Card This expansion bay Accepts Compatible Switches and RoutersInstallation and Safety Guide About this GuideChoosing a PIC Bay Package ContentsInstalling a PIC Jumper Function Default Slide the PIC into place Setting the Isdn Territory Set the interface for the VoIP traffic Downloading VoIP FirmwareManager set voip fi=hs-1-0-0.bin protocol=h323 Obtaining Documentation and Resources Telecommunications Interfaces Important Safety Instructions

AT-AR021 (S) BRI-S/T, AT-AR020 PRI E1/T1, AT-AR027VOIP-FXS, AT-AR024ASYN4, AT-AR023 SYN specifications

Allied Telesis has established itself as a leader in networking solutions, offering a range of devices that cater to various connectivity needs. Among its notable products are the AT-AR021 (U) BRI-U, AT-AR022 ETH, AT-AR026 4ETH, AT-AR023 SYN, and AT-AR024 ASYN4. These devices exemplify cutting-edge technology and robust features, making them ideal for modern network environments.

The AT-AR021 (U) BRI-U is primarily designed for digital telephony applications, featuring two BRI (Basic Rate Interface) ports. This enables organizations to efficiently connect to ISDN lines, facilitating reliable voice communications. It supports a variety of protocols, ensuring compatibility with numerous telecom networks, which is essential for businesses relying on seamless voice integration.

The AT-AR022 ETH is a versatile solution that focuses on enhanced Ethernet connectivity. Designed for high-speed data transmission, it supports multiple VLANs (Virtual Local Area Networks) and Quality of Service (QoS) configurations. This ensures that critical applications receive the bandwidth they need while providing efficient network traffic management.

For organizations requiring enhanced Ethernet capabilities, the AT-AR026 4ETH offers four Ethernet ports, providing flexibility for multiple devices to connect simultaneously. This model is particularly beneficial for small to medium-sized enterprises looking to develop a robust local area network (LAN) without extensive infrastructural changes. Its ability to support power over Ethernet (PoE) enables it to power devices like VoIP phones and security cameras directly through the network cable, simplifying deployment and reducing clutter.

The AT-AR023 SYN model is tailored for synchronous communication, making it ideal for applications that demand constant data flow and real-time processing. Its advanced synchronization technology ensures minimal latency and maximum throughput, critical for industries such as finance and telecommunications, where precise timing is essential for operations.

Finally, the AT-AR024 ASYN4 caters to asynchronous communication applications. This device supports four asynchronous serial ports, enabling connectivity with a wide range of equipment, including legacy systems, smart devices, and industrial machinery. It serves as a bridge for organizations transitioning from traditional systems to modern networking paradigms.

In summary, Allied Telesis offers a diverse portfolio of networking solutions through the AT-AR021 (U) BRI-U, AT-AR022 ETH, AT-AR026 4ETH, AT-AR023 SYN, and AT-AR024 ASYN4. Each model embodies unique features and technologies designed to enhance connectivity, ensure compatibility, and facilitate seamless communication across various platforms, making them essential components for contemporary network infrastructures.
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