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Robotics Interface Module

8 StreamLine™ SL8500 Modular Library System User's Guide • March 2007

Revision K • 96154

Firmware Versions

Flash memory holds both the most recently activated firmware version and the

previous firmware version. Therefore, if there is a requirement to return machine

control to a previous version, a service representative merely re-activates the previous

version and places the now-deactivated version into the “previous” state.

Features

When features are added to a library, they are tracked to the machine’s serial number

Any upgrade must be matched to the serial number before activation. The upgrade

process is accomplished over the command line interface (CLI) by the service

representative.

HBC Card

The HBC card is the library controller, responsible for coordinating all component

operations within the library. It is the interface between the host and the library. One

HBC card can control a library’s operation, but a second HBC is available to assure

redundancy. Operating voltage for HBC cards is +3.3 VDC.

In addition to the cards in the electronics control module, the HBC card interfaces with

the following cards and components:

■

Ethernet hubs (Library-to-library LANs, tape drive service LAN)

■

TCP/IP/Web host interface

■

HBS cards (robots)

■

Power, smoke, and environmental monitoring circuits throughout the library

■

Flash memory

HBT Card

The HBT card translates commands from the HBC controller card into unique drive

commands, transferred across differential RS422 lines. The HBT card contain 66

Universal Asynchronous Receiver/Transmitters (UARTs); 64 are responsible for the

parallel-to-serial conversion for the tape drives and the remaining two communicate

with the tape environmental monitor card (HBD card).

Robotics Interface Module

The robots move cartridges between storage slots, between slots and tape drives, and

between the CAP and slots.

There are four robotic rail assemblies in the library that provide both power and

communications to the four or eight robots. Each robot can service up to 16 tape drives.

Robots consists of:

■

Rail, brush, and HandBot assemblies

3. The machine serial number is on the rear, bottom of the Tape Drive and Electronic Module.