IBM SG24-4817-00 manual 3 155 Mbps ATM I/O Card, Expansion Unit FC, Reset Button

This soft copy for use by IBM employees only.

2.2.2.4 Reset Button

The reset button resets both the IBM 8285 Base Unit and the optional IBM 8285 Expansion Chassis with its inserted modules.

For more information about the LEDs, the connectors, and the reset button, refer to the IBM 8285 Nways ATM Workgroup Switch: Installation and User′s Guide, SA33-0381.

2.2.3 155 Mbps ATM I/O Card

The 155 Mbps ATM I/O Card is an optional card installable in the 155 Mbps Feature I/O Card Slot of the base unit. There are two types of 155 Mbps ATM I/O Cards available, Multimode Fiber (FC 5500) and Single-Mode Fiber (FC 5501). It becomes the 13th port of base unit and can be linked to an ATM station or to another ATM switch that supports ATM 155, such as another 8285 switch or an 8260 hub.

2.2.3.1 Connectors

Both I/O cards have SC connectors.

2.2.3.2 LEDs

The 155 Mbps ATM I/O Card has the following LEDs:

•

•

•

Status

Output Activity

Error

2.3 Expansion Unit (FC 5502)

The 8285 Expansion Chassis provides three slots to receive IBM 8260/8285 ATM modules, extending the 8285 switch′s functions and capacities.

The IBM 8285 Expansion Chassis consists of the following:

•Internal Features:

−An ATM backplane that is similar to the one used in the 8260 hub.

−A planar containing a switch-on-a-chip, which connects the base unit ATM ports to each other and to other ATM modules in the IBM 8285 Expansion Chassis.

•External Features:

−Slots

−Connectors

−LEDs

−A rack-mountable chassis with an integrated, auto-sensing universal power supply

Chapter 2. Introduction to the IBM 8285 Nways ATM Workgroup Switch 13