Specifications

Advanced Configuration Features
240
EIO0000000051 6/2010
Write-Protecting Configuration Data
Introduction
As part of a custom configuration, you can password-protect an Advantys STB
island. Only authorized persons have write privileges to the configuration data
currently stored in Flash memory:
z Use the Advantys Configuration Software to password-protect an island’s
configuration.
z For some modules, it is possible to password-protect the island configuration
through an embedded web site.
The island runs normally in protected mode. All users have the ability to monitor
(read) the activity on the island bus. If a configuration is write-protected, access to it
is restricted in the following ways:
z An unauthorized user is unable to overwrite the current configuration data in
Flash memory.
z The RST button (see page 49) is disabled, and pushing it has no effect on island
bus operations.
z The presence of a removable memory card (see page 53) is ignored. The
configuration data currently stored in Flash cannot be overwritten by data on the
card.
NOTE: The STB NIP 2311 NIM never ignores the removable memory card.
Password Characteristics
A password must meet the following criteria:
z It must be between 0 and 6 characters in length.
z Only alphanumeric ASCII characters are permitted.
z 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 password-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 are unable to change the island’s configuration.
If the password is lost and you need to reconfigure the island, you need to perform
a destructive reflash of the NIM. This procedure is described on the Advantys STB
product Web site at www.schneiderautomation.com.