Installing the 100 Mb/s Fast Ethernet Buffered Link Modular Media Interface Card

This document provides installation instructions, usage guidelines, and specifications for the DIGITAL 100BufFX Fast Ethernet Modular Media Interface (MM-100) card. This hot-swappable, single-slot option card supports FX buffered connections for Fast Ethernet Hubs, extending cabling distances up to 2 kilometers. It is designed for use with DIGITAL MultiSwitch Hub 612TX modules.

The card features SC-transmit/receive connectors and three status LEDs: PHY Status, FRU Status, and Buffer Status. It allows connections to other 100BaseFX cards up to 2 km in full-duplex mode. The 100BufFX card does not auto-negotiate, requiring manual configuration for full-duplex 100BaseFX operation.

Installation involves preparing by removing packaging and using antistatic precautions, then inserting the card into a host module and fastening it with captive screws. The card supports hot-swap and automatically initializes upon insertion into a powered module. LED indicators provide status during initialization and operation, indicating physical layer status, fault/diagnostic status, and buffer occupancy.

The document also details multimode fiber-optic cable specifications (EIA/TIA 492-AAAA, 62.5/125 μm, SC connector, up to 2 km, 0-9 dB loss at 1300 nm) and provides an overview of product specifications including environmental (operating temperature 5-50°C, 10-95% humidity), physical (dimensions, weight), and functional (1K packet receive buffer, error filtering) characteristics. Relevant certifications are also listed.