4 common syntax definitions, 5 locking – Nevion Multicon MRP User Manual

Page 7

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Modular Routing Protocol - MRP

Rev. L


nevion.com | 7

Start and end of a text string is by means of a single " character. If a string contains a " or \
character, it must be preceded by a \ (like in the C programming language). Description
fields may be up to 127 bytes long. UTF-8 is used for character encoding throughout the
system.

2.4 Common syntax definitions

These syntax definitions are common to many functions.

<tables> ::= 'l'<levels>|'vt'<vtables>|'sg'<salvo_groups>

<levels> ::= <level>|<level>','<levels>|<level>'-'<level>

<vtables> ::= <vtable>|<vtable>','<vtables>|<vtable>'-'<vtable>

<salvo_groups> ::=
<salvo_group>|<salvo_group>','<salvo_groups>|<salvo_group>'-
'<salvo_group>

<param_groups> ::=
<param_group>|<param_group>','<param_groups>|<param_group>'-
'<param_group>

<vlevels> ::= <vlevel>|<vlevel>','<vlevels>|<vlevel>'-'<vlevel>

<salvos> ::= <salvo>|<salvo>','<salvos>|<salvo>'-'<salvo>

Mnemonics are supported for a lot of items. The alias and name is freely assignable, and
will in many cases be called a label. The initial item name, alias and description is set
during configuration. The description is not available for modification through this protocol.

<name_desc> ::= '"'<name>'"' '"'<alias>'"' '"'<description>'"'

'"'<icon>'"'

<format> ::= 'TGSDI'|'HDSDI'|'SDI'|'AnalogHD'|

'AnalogSD'|'AnalogAudio'|

'AES'|'Audio'|'Data'|'Video'

2.5 Locking

LOCK CROSSPOINT

A lock is a property applied to an output, destination, salvo or parameter that makes that
output, destination, salvo or parameter unchangeable to all users, including the user that
locked it.

UNLOCK CROSSPOINT

Unlock is only effective if it is sent by a user with higher access level than the user which
sent the lock or protect command, or the unlock is sent by the same user that sent the lock
or protect command.

PROTECT CROSSPOINT

A protect is a property applied to an output, destination or salvo that makes that output,
destination or salvo unchangeable to all other users, except for the one that protected it.

Refer to the Nevion Configurator for user management details.

The user that owns a locked or protected item is allowed to change the lock/protect state of
this item. A user with higher access level then the user that owns the locked/protected item
is allowed to change the state. An administrator can always unlock.

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