Foxboro NCNI P0972PP Network Interface Module

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I/A Series A2™ Hardware

Nodebus/Control Network Interface (NCNI)

The I/A Series® Nodebus/Control Network Interface (NCNI) is a Z-Module form factor interface device designed to allow the connection of a 10 MB redundant I/A Series Nodebus to a 100 MB/1 GB I/A Series redundant Control Network. The NCNI allows connection to either copper or fiber network switches. It connects to a 100Base-FX Ethernet switch port using an MT-RJ fiber connector with a 62.5/125 micron multimode fiber for distances up to 2 km, or optionally to a 100Base-TX, 10/100 MB connection Ethernet switch port via Category 5, shielded twisted-pair cables (CAT5® STP) for up to 100 meters.

Two modules are required for the redundant Nodebus interface: one for the “A” bus and one for the “B” bus. The NCNI is packaged in a Z-Module form factor with a Cellbus connection for power and Nodebus interface.

Since the Nodebus operates at 10 MB, the NCNI contains an internal Ethernet switch function with local buffer storage to provide for a 100 MB network connection. The 10/100 MB copper port will autonegotiate 10/100 MB data rate and half/full duplex, whereas the fiber connection is fixed at 100 MB, full duplex.

LEDs on the front of the module indicate link status and module status. Neither the stations on the I/A Series redundant Control Network nor the I/A Series Nodebus need special gateway software to communicate with each other. Standard Redundant Control Network software allows transparent communication across the two physical types of networks.

FUNCTIONAL SPECIFICATIONS

Power Requirements

INPUT VOLTAGE (REDUNDANT)

26 to 42 V dc (39 V dc typical)

CONSUMPTION (HEAT DISSIPATION)

8 W, maximum

Maximum Number of Nodebus Interfaces Allowed in a Single Node

Not limited

Communication Characteristics

Two modules are required to provide redundant connection to Nodebus.

Nodebus Interface Cabling Distance

Maximum cabling distance between NCNI and other NCNIs or Control Network switches

COPPER

CAT5 - STP cable: 100 meters

FIBER OPTIC

62.5/125 micron multimode fiber: 2 km

ENVIRONMENTAL SPECIFICATIONS

Operating

TEMPERATURE

0 to 60°C (32 to 140°F)

RELATIVE HUMIDITY

5 to 95% (noncondensing)

ALTITUDE

-300 to +3,000 m (-1,000 to +10,000 ft)

Storage

TEMPERATURE

-40 to +70°C (-40 to 158°F)

RELATIVE HUMIDITY

5 to 95% (noncondensing)

ALTITUDE

-300 to +12,000 m (-1,000 to +40,000 ft)

FAQ

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