Sel 551 - Table 5.8 Valid Password Characters

5.24
SEL-551 Relay Instruction Manual Date Code 20110408
Serial Port Communications and Commands
Command Explanations
The new passwords will not echo on the screen, and passwords cannot be
viewed from the device. Record the new passwords in a safe place for future
reference.
If the passwords are lost or you wish to operate the relay without password
protection, install the main board Password jumper (Password jumper = ON).
Refer to Section 2: Installation for Password jumper information. While the
password protection is disabled by setting the main board Password jumper in
place (Password jumper = ON), lost or forgotten passwords can be replaced by
new passwords by using the PAS x command at Access Level 2. The relay
will prompt for a new password and a confirmation of the new password.
If you wish to disable password protection for a specific access level (even if
the Password jumper is not in place [Password jumper = OFF]), simply set the
password to DISABLE. For example, PAS 1 DISABLE disables password
protection for Access Level 1.
Passwords may include up to 12 characters. See Table 5.8 for valid characters.
Upper- and lowercase letters are treated as different characters. Strong
passwords consist of 12 characters, with at least one special character or digit
and mixed case sensitivity, but do not form a name, date, acronym, or word.
Passwords formed in this manner are less susceptible to password guessing
and automated attacks. Examples of valid, distinct strong passwords include:
➤ Ot3579A24.68
➤ Ih2dcs4u-Iwg
➤ .351s.Nt9g-t
The relay will issue a weak password warning if the new password does not
include at least one special character, number, lowercase letter, and an
uppercase letter.
=>>PAS 1 <Enter>
Old Password: ********
New Password: ********
Confirm New Password: ********
Password Changed
=>>
CAUTION: This password can be strengthened. Strong passwords do not include a name,
date, acronym, or word. They consist of the maximum allowable characters, with at
least one special character, number, lower-case letter, and upper-case letter. A
change in password is recommended.
=>>
PUL Command (Pulse)
The PULSE command allows you to pulse any of the output contacts for a
specified length of time. The command format is:
PUL X Y
Table 5.8 Valid Password Characters
Symbol Example
Alpha A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
a b c d e f g h i j k l m n o p q r s t u v w x y z
Numeric 0 1 2 3 4 5 6 7 8 9
Special ! " # $ & ' ( ) * , - . / : ; < = > ? @ [ \ ] ^ _ { ` } ~