About Sun PCIe Dual-Port FC EM

The Sun PCI Express (PCIe) Dual-Port Fibre Channel (FC) ExpressModule ( EM) from QLogic consists of a single wide, PCIe EM bus expansion board that interfaces a 4 lane (8-lane physical) PCIe bus to an FC optical media bus. The EM can act as either an initiator or a target. The board supports two independent FC buses operating at 4.25 Gbps. It is also backward compatible with 2.125 Gbps and 1.0625 Gbps devices. Small Form Factor (SFF) optical transceivers are used to connect to the external FC buses.

Feature Overview

The following table lists the features of the FC EM.

Feature

Description

PCI connector

x8

PCI signaling environment

PCI Express x4 (4 active lanes)

PCI transfer rate (maximum)

PCI Express Generation One (2.5 Gbps) x4

Number of FC buses

Two

Number of devices supported

126 devices per FC loop

FC bus type (external)

Fiber optic media, short wave, multi-mode fiber (400- M5- SN-S)

FC transfer rate

400 Mbytes per second per loop maximum, half duplex

800 Mbytes per second per loop maximum, full duplex

FC interface chip

QLogic ISP2432

ISP RAM

256kx36 SSRAM, parity protected, per port

BIOS ROM

One 1-MB flash ROM, field-programmable

NVRAM

One 2-KB EEPROM, field-programmable

External connectors

Two LC duplex connectors

Maximum FC cable length

1 Gbps: 500 meters using 50/125 µm core fiber

- - - - - -300 meters using 62.5/125 µm core fiber

2 Gbps: 300 meters using 50/125 µm core fiber

- - - - - -150 meters using 62.5/125 µm core fiber

4 Gbps: 150 meters using 50/125 µm core fiber

- - - - - -70 meters using 62.5/125 µm core fiber

LED indicators

Three LEDs per channel (yellow, green, amber) on front panel as status indicators

Power LED, Attention LED, and a push button on front panel to support hot-plug functionality

Form Factor

PCI ExpressModule, single wide