Introduction - PSC 2000781J MkII MLB Operating Procedure

3. Introduction

This document describes the steps required to handle and operate the MKII Motorized Lightband (MLB). Training
and certification by Planetary Systems Corp (PSC) are required to operate any Lightband. This can be verified via
PSC document 3000224 MLB Training Record, provided at training completion. The Training Record also
specifies the certification's expiration date.
Ensure this is the latest version of the document by visiting PSC's website, planetarysystemscorp.com. If the
latest version is newer than the version trained on contact PSC to discuss the changes before continuing.
Read this entire document before attempting any procedures.
Contact PSC to clarify any ambiguity or to answer any other questions.
3.1 Lightband Description
The Lightband is composed of two separable halves. The Lower Ring contains the Hinged Leaves, Retaining
Ring, Motor Bracket Assembly (MBA) and Separation Springs. The Upper Ring, smaller and lighter, contains the
accepting groove into which the Leaves engage. The typical orientation is Lower Ring attached to the launch
vehicle and Upper Ring attached to the space vehicle. The electrical interface to operate the Lightband is a DB-9
socket connector on the outside of the MBA. See Figure 3-1 to Figure 3-6. For more information on the Lightband
see PSC document 2000785 MkII MLB User Manual.
The Lightband is not ESD-sensitive.
There are three Lightband operations:
Lightband Operation
Stow
Set-for-Flight
Deploy
PSC Proprietary
Table 3-1: Lightband operations
Mechanically locks the Upper and Lower Rings together by forcing the Hinged
Leaves to engage the accepting groove in the Upper Ring.
Moves internal components of the Motor Bracket Assembly at low voltage to
minimize separation time. Verifies proper Lightband operation prior to
deploying.
Separates the Upper Ring from the Lower Ring.
2000781J MkII MLB Operating Procedure
Description
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