Network Control Module 300 Series Technical Bulletin 25
Table 10: NCM Functionality
Functionality Description
Standard Functionality
Standard NCM
The load capacity for an NCM depends on the available memory, the number of
devices connected to the controller, and the software configuration of those devices.
Fire Management
Along with the Release 6.0 or later Metasys software needed for the NCM, the fire
management NCM software requires the IFC-2020 or IFC-1010 panel firmware to be at
panel software Release 3 or later. A Fire NCM handles one IFC-2020 or IFC-1010
controller with up to 240 fire zones attached to that controller on the N2 Bus. Each IFC
zone counts as one Metasys Zone object for the purpose of memory sizing.
The following guidelines list other kinds of devices that the fire management NCM is
capable of processing:
HVAC application specific controllers (for example, AHUs, UNT, VAV, VMA, LCP,
DX-9100)
Point Multiplex Modules (Multiplex Binary, Multiplex Relay Latched, Multiplex Relay
Momentary, Multiplex Relay Electrically Maintained)
The IFC panel is a building fire management controller and, in most situations, it is
alone on the N2 of a Fire configured NCM. However, if there are a few remaining ASC
or XM points that do not justify a separate NCM, they can be added to an NCM
supporting the IFC, up to the memory limits of that NCM. For a complete listing of
devices that may be connected on the same N2 local bus as the IFC panel, see the
Capabilities and Limitations section in the Fire System Objects Technical Bulletin
(LIT-636104).
Intelligent Access
Control
The Intelligent Access Control (IAC) software requires Release PS130B or PS130C
firmware for the IAC-600. With Release 6.0 of Metasys software, an IAC NCM handles
two IAC-600 controllers and up to 16 readers attached to each controller.
Note: Some third-party card access controllers emulate the IAC-600. Contact the
vendor for requirements and restrictions for their controllers. See the Metasys
Compatible Products (PUBL-2678) brochure.
The following guidelines list other kinds of devices that the intelligent access control
(security) NCM is capable of processing:
HVAC application specific controllers (for example, AHUs, VAV, VMA, DX-9100)
Point Multiplex Modules (Multiplex Binary, Multiplex Relay Latched, Multiplex Relay
Momentary, Multiplex Relay Electrically Maintained)
The IAC-600 is a building access controller and in most situations is alone on the N2 of
an NCM. However, if there are a few remaining ASC or expansion module points that
do not justify a separate NCM, they can be added to an NCM supporting the IAC-600,
up to the memory limits of that NCM. For a complete listing of devices that may be
connected on the same N2 local bus as the Access Controller, see the NCM
Capabilities section of the Access Control System Objects Technical Bulletin
(LIT-636077).
Operator Terminal
The Operator Terminal NCM has a load capacity similar to that of the standard
NCM300 or NCM350, including support of the intelligent lighting controller and Lab and
Central Plant (LCP) controller.
It differs from the standard NCM in that it replaces the Network Terminal.
An Operator Terminal NCM may, however, interact with DSC-1000 controllers if they
are connected to another NCM on the N1 LAN.
Migration Functionality
Gateway
An NCM with Gateway software can connect one gateway and map up to 1400 JC/85
Level 3 points. This trunk requires a dedicated RS-232 port on the JC/85 headend. An
NCM with the default on board memory (2 MB of DRAM) is all that is needed for the
largest allowed JC/85 database.
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