Installing the Isdn Link Modules

Servicing Information

If there is an ISDN module plus another type of WAN interface module or if there is a single ISDN module, the ISDN U or S/T Module must only be installed in the Slot 1 position. The slot 2 position may contain another type of WAN module or may be unused and covered with a blank panel. For this model, if there is a second LAN module in this unit, it must go in the Slot 1 position and the ISDN module in Slot 2.

Note: the older double width type ISDN module will not fit in this device.

Slot1	Slot 2	LAN/Console module
		MDI-X MDI
ISDN-U
		10/100 BT LAN
LINE		CONSOLE

Remove these screws to remove the modules.

Figure C-2 Rear View with the ISDN U Module Installed

Processor settings for the ISDN Link Modules

ISDN S/T or U modules have jumper straps to set the module for the CPU used on the main board. On an S/T interface, these are labeled W1 and W2; on a U interface, the pins are labeled J1. When installing an ISDN module, check the jumpers to be certain that they are configured to operate with the 360 series CPU by having both straps across pins W1 and W2 (S/T module) or across pins 1-3 and 2-4 at J1 (U module), as illustrated in the figure below.

JUMPERS

Figure C-4 ISDN Module processor setting jumpers

LR5200A-R2, LR5100A-T specifications

The Black Box LR5100A-T and LR5200A-R2 are advanced network media converters designed to facilitate seamless data transmission across various media types. These devices are particularly valuable for organizations seeking high-performance solutions for extending network communications beyond traditional limits.

The LR5100A-T is an Ethernet media converter that operates over twisted pair cabling, efficiently converting 10/100/1000 Mbps Ethernet signals into fiber optic signals. This capability allows businesses to harness the long-distance advantages of fiber optics while maintaining compatibility with existing Ethernet infrastructure. With a broad range of supported distances, users can effectively communicate over distances up to 100 kilometers, depending on the type of fiber optic cable used and the transmission rate.

In contrast, the LR5200A-R2 emphasizes compatibility with a wider range of fiber types and supports both multimode and single-mode fiber connections. It also provides auto-negotiation capabilities, which enable it to automatically detect and configure to the optimal speed of connected devices, streamlining setup and enhancing user experience.

One of the key features of both the LR5100A-T and LR5200A-R2 is their rugged design, making them suitable for deployment in harsh environments. They are engineered to withstand extreme temperatures and are resistant to vibration, ensuring reliability in challenging settings. Additionally, both models adhere to industry standards, ensuring interoperability with a diverse array of networking equipment.

Notably, these converters come equipped with LED indicators that allow for real-time monitoring of device status, simplifying network management and troubleshooting. This feature ensures that technicians are promptly alerted to any connectivity issues, significantly reducing downtime.

Powering options for both models include standard AC power supplies or Power over Ethernet (PoE), allowing for flexible deployment scenarios without the need for additional power outlets. This flexibility can be a crucial factor in environments where power availability may be limited.

With their blend of performance, durability, and advanced features, the Black Box LR5100A-T and LR5200A-R2 media converters represent a solid choice for organizations looking to future-proof their network infrastructure while ensuring high levels of connectivity and reliability. Whether extending existing networks or implementing new solutions, these devices provide the necessary tools for effective communication in today’s digital world.