Enterasys Networks A2H123-24 ユーザーズマニュアル

SecureStack A2 Installation Guide

A-3

Fiber-Optic Specifications

Two 100BASE‐FX fiber ports (Multimode) with LC connectors are located on the front
panel. The specifications shown in the following tables meet or exceed the IEEE 802.3z‐
1998 standard.

Console Port Pinout Assignments

The Console port is a DB9 serial communications port for local access to Local
Management. Refer to

Figure A‐1

for the Console port pin assignments.

Figure A-1

Console Port Pinout Assignments

Table A-2

LC Port Optical Specifications

Item

62.5 µm MMF

50 µm MMF

Transmit Power (minimum)

-9.5 dBm

Receive Sensitivity

-17 dBm

Link Power Budget

7.5 dBm

Table A-3

LC Port Operating Range

Item

Modal Bandwidth @ 850 nm

Range

62.5 µm MMF

160 MHz/km

2-220 Meters

62.5 µm MMF

200 MHz/km

2-275 Meters

50 µm MMF

400 MHz/km

2-500 Meters

50 µm MMF

500 MHz/km

2-550 Meters

Pin 2, Received Data (input)

Pin 5, Signal Ground

Pin 3, Transmitted Data (output)

All other pins not connected.

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