Schneider Electric 890USE17700 manual Protecting Configuration Data

Advanced Configuration Features

Protecting Configuration Data

Introduction	As part of a custom configuration, you can password-protect an Advantys STB
	island. This protection restricts write privileges to authorized personnel and prevents
	unauthorized users from overwriting the configuration data currently stored in Flash
	memory.
	You must use the Advantys configuration software to password-protect an island’s
	configuration.
Protection	If a configuration is protected, access to it is restricted in the following ways:
Feature	An unauthorized user is unable to overwrite the current configuration data in
	Flash memory.
	The presence of a removable memory card (See Installing the STB XMP 4440
	Optional Removable Memory Card, p. 50) is ignored. The configuration data
	￿currently stored in Flash cannot be overwritten by data on the card.
	The RST button (See The RST Button, p. 55) is disabled, and pushing it has no
	effect on island bus operations.
	The island runs normally when it is in protected mode. All users have the ability
	to monitor (read) the activity on the island bus.
Password	A password must meet the following criteria:
Characteristics	It must be between 0 and 6 characters in length.
	￿Only alphanumeric ASCII characters are permitted.
	The password is case-sensitive.
	If password protection is enabled, your password is saved to Flash memory (or to a
	removable memory card) when you save the configuration data.
	Note: A protected configuration is inaccessible to anyone who does not know the
	password. Your system administrator is responsible for keeping track of the
	password and the list of authorized users. If the assigned password is lost or
	forgotten, you will be unable to change the island’s configuration.
	If the password is lost and you need to reconfigure the island, you will need to
	perform a destructive reflash of the NIM. This procedure is described on the
	Advantys STB product Web site at www.schneiderautomation.com.

164 890USE17700 April 2004