Renesas FLASH Development Toolkit 3.07 Instruction Manual download pdf (Page 9)

Introduction to Symmetry and M2150

Access Control Design Guide

A database unit and all the controllers that are connected to it is collectively known as a "node".

An elevator node is available that can control access to 64 elevator floors and four cabs. The node

contains an Elevator Interface Board, which is a controller that enables the elevator readers and other

hardware, such as floor buttons, to be connected.

Monitor points and auxiliary outputs are provided by fitting I/O module(s) to a database unit, or by

connecting separate alarms controllers. Monitor points enable the current state of digital devices such as

alarm sensors to be monitored. Auxiliary outputs are relays that allow external devices such as sirens or

indicators to be switched on or off manually from the SMS software, automatically at predefined times

during the day, or in response to an event such as a door opening. A single database unit can control up to

96 monitor points or auxiliary outputs, depending on the boards used (see page 7).

If more than 16 readers are needed, or additional auxiliary outputs or monitor points are required, the

system can be expanded by adding additional database units. Each database unit can communicate

independently with an SMS PC (e.g. over a network). Alternatively, a chain of up to 32 database units can

be used by connecting the COM B port of one database unit to the COM A port of the next; this requires

only the database unit at the head of the chain to communicate with an SMS PC, as shown in Figure 1-1.

Depending on the license purchased, each SMS PC can support up to 512 LAN chains

and/or 16 dial-

up/serial hardwired chains. With up to 32 database units per chain, this gives great flexibility to extend the

system to meet the needs of any size of organization.

Summary of M2150 Components

M2150 has a flexible approach to the system hardware. If required, the hardware can be purchased as a

"kit of parts", which enables the boards, modules and cabinets to be selected to match the exact needs of

the installation and to reduce the overall cost of the system. Alternatively, to simplify installation, "off-the-

shelf" solutions are available, consisting of the most common board combinations already fitted inside a

cabinet.

Table 1-1 summarizes the main boards and devices available for M2150 systems.

Table 1-2 summarizes the optional modules.

Note: Any equipment that has not passed UL294 must not be installed at sites that require UL

conformance. Please refer to Appendix B on page 54 if you are installing equipment at a site that requires

UL294 compliance.

System maximum of 1024 LAN chains.

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Renesas FLASH Development Toolkit 3.07 Instruction Manual Page 9