Promag TR510E Manual page 35

The TR510E features a relay that can be used for external bell or door lock
activation control. This register specifies the number of seconds for the Door
lock relay activation duration. Please see register 01 for the Bell relay activation
duration.
Prefix to match (group-1 register 89H)
Set
Command C89,prefix_string
Reply A
Get
Command B89
Reply Aprefix_stringcc
prefix_string is the string of prefix to be set (0-16 digits long), cc- checksum
Prefix to match allows you to restrict the User ID-cards accepted by the
TR510E to cards whose leading ID-code characters match those of the prefix
string. This way you can setup the system to accept only certain ID-Cards. You
can even implement a simple access control function (using the TR510E as an
Control Terminal).
The prefix can be from 0 to 16 digits long. Entering a string with 0(none)
character disables prefix checking- any readable User Card will be accepted. If
the Prefix String is set, the TR510E will compare each User Card with this
String and reject the Cards that do not match, for example:
If Prefix to match is set to "123" then the TR510E will accept Cards such as
"1234", "123679", "123". The terminal will reject the Cards with codes like
"14377" and "12".
Default value for this setting is "" (empty string), i.e. prefix matching is
disabled.
From Character (group-1 register 8AH)
Set
TR510E User's Manual
35
Possible error codes: 04, 07
Possible error codes: 04, 07
Possible error codes: 04, 07