Network Solutions: ELM System OverviewThe requirements on control cubicles
or facilities in server rooms and computer centers have changed clearly.
Requirements of today:
With the Electronic Locking & Monitoring (ELM) System, EMKA offers a complete solution from one hand, which has the decisive features. Our modular designed systems can be easily adapted to the customer's needs.
This page provides a short overview of the ELM system.
Content and who should read which paragraphs:
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Introduction
The EMKA Electronic Locking & Monitoring System (ELM System) provides controlled access to all types of cabinets and is suitable for monitoring, control and reporting of environmental conditions. From an abstract point of view, there are different functional types within the ELM-System. Each of these functional types is specialized to a specific task, e.g. controlling a lock, monitoring a sensor, accepting user input and others. One or more instances of the same or different functional types are grouped together on a Module. An instance of a functional type on a module is called a functional Component. There are different standard module-types available from which a specific ELM system can be build up. Each module-type combines a different set of components onto a base platform. The module's base platform provides a CAN-bus interface (Controller Area Network) for connecting to other modules. Therefore all of the components of an ELM system can interact with each other. A specific, user defined ELM application provides the components just needed for the application and consists of the modules onto which these components do reside. The modules are chained by a CAN bus. A Communication Component is needed for managing exchange of data via the CAN bus as well as for the exchange of data with workstations. Such a component reside on the Communication Module. With the only exception of this communication module, which is needed exactly once, it is possible to integrate more than one unit of the same module type into an ELM system. The ELM system allows to operate up to 64 modules of each type, up to 100 modules altogether, on a distance up to 1000 meters. There are module types that can manage several handles, latches or sensors. Others combine user interface components with locking components and sensory components. It is possible to operate up to 512 handles or 256 sensors and 258 contacts per ELM system. Up to 5 access code numbers can be used for each handle individually. An ELM system provides different user interface components or operating components regarding to identification and control like, e.g. keypads, mobile phones, proximity cards, PC-workstations or laptops. Every access attempt, whether successful or not, and change of monitored conditions can be logged for further processing. Events can cause alarms in different ways. Administration and monitoring of an ELM system can be done via different data interfaces (Ethernet, RS232) by means of a PC/workstation or laptop. The communication component of an ELM system provides an SNMP-Interface (Simple Network Management Protocol). Therefore, the ELM system also can be integrated in third party SNMP Management systems. The communication component allows for a simultaneous access of several workstations. A workstation can operate at one of 10 levels of permission. |
| The SNMP Manager ELMcontrol allows easy configuration, control and
monitoring of the Electronic Locking System on a PC with Microsoft
Windows® operating systems. All of the modules and
components are shown in several structured views and lists. The state is
displayed in real time in form of intuitive symbols as well as in form of
text messages. Commands can be executed, e.g. opening a door. Events
stored at the ELM system are displayed and written to files. ELMcontrol
manages a list of several ELM systems. The user can easily switch over to
the ELM system to administrate. Communication can be done via
Ethernet-LAN, Internet or Serial/USB connection.
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ELMwatcher is a program for monitoring SNMP Trap
notification messages generated by an ELM system. It lets you manage received notifications in various ways
and includes mechanisms for informing users about the notified events. ELM
Notifications can be viewed in a list window, logged to files and
forwarded by E-mail. ELMwatcher displays details for each notification
message and can summarize multiple repeated notifications. A sound file
can be played on a received notification. The notifications can also be
used to invoke other programs. Futhermore, user defined Tool Command
Language (TCL) scripts can be executed by ELMwatcher on notification.
ELMwatcher’s build in TCL interpreter provides the possibility to specify
individual reactions on each notification.
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There are several groups of functional components from which an ELM system application can be build up. These include
Components for door locking control
Components for sensory supervision
Switching components
User interface components
Communication components
One or several Components are combined in different compositions on Modules. There are a collection of standard module types available. Others can be developed on inquiry.
In turn, one or several modules are combined in different compositions in 19 inch Rack Mount Units. There are several standard rack units available containing different sets of modules. The ELM rack case allows also for custom specific equipping with modules.
An ELM system can be build up from several modules. On the other hand, an ELM system can be assembled with several 19 inch racks by means of bus chaining. Furthermore, rack units and additional external modules can be mixed within one ELM system. This proves that the fundamental modular idea has been continued.
Click on the link below to learn more.
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More information about Components, Modules and 19'' Racks |
The modules of an ELM system are available:
as single module in a closed housing - "BOX"
as single module in a rail mountable profile housing - "KIT"
as set of modules in a 19 inch rack mount unit - "19'' Rack"
Complex network systems can be built as combinations of several single modules and rack mount units.
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BOX A single ELM module is encased in a closed housing with a plug connector system. All external devices are plugged into sockets. |
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19'' Rack A Rack Mount Unit (ELM RMU) contains one or several modules. The Rack has a space requirement within the cabinet of 1 U only. All external devices are plugged into sockets. The ELM rack case is also available as "bare bone" allowing for custom specific equipping with modules. The case has a capacity of up to six ELM modules. |
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KIT Especially for outfitter, all components are also offered unencapsulated for single wire connections, in a housing rail for top hat rail mounting. |