FOXBORO A4H254-8F8T P0973JP Managed Ethernet Switch
Enclosure Diagnostic Alarms
The EMUprovides an alarm for power supply failure detection, fuse failure detection
via the FMU, door open, fan deterioration, and enclosure over temperature. The EMU
provides a composite diagnostic alarm from a graduated analog signal that indicates
individual alarms and is prewired to a Universal I/O module channel for indication and
alarm.
Enclosure Security
The enclosure can be physically locked with a customer-supplied padlock to provide
physical security. The enclosure is also fitted with a door open switch that is alarmed
via the Enclosure Monitoring Unit to alert plant personnel.
Enclosure Options
The enclosure can be configured with the following options:
• 120VACor230VACsupply
• Customersupplied cable glands or factory fitted Multi Cable Transit (MCT)
• Termination Assembly selection for IS, Non-IS, and manufacturer
• 64simplex UIOpoints, 64 redundant UIO points, or 48 simplex and 16 redundant
UIO points
• Third party communications through FBM232 modules for simplex Ethernet or
FBM233modules for redundant Ethernet
• Fiber optic connection to the HDLC Fieldbus using FCM2F10 modules
• Extended twinaxial connection to the HDLC Fieldbus using FBI200 modules
24VDCPowerDistribution Assembly
B AlarmDistribution Assembly Terminals
C PrimaryPowerSupply
D EnclosureMonitoring Unit
E DoorOpenSwitch
F PowerEntryTerminal Blocks
G SecondaryPowerSupply
H Fansforinternal air circulation
K Instrument Ground Bar
L Baseplate8-Position FBM
M InstrumentGround Bar
N CableEntry(Blank Gland Plate)
O Termination Assemblies (Phoenix Contact shown)
P WireTray,50mmx50mmx403mm(2inx2inx15.9in)
Q ElectroStatic Discharge Bonding Point
R Fiber-Optic Patch Panel
Baseplate 2-Position FCM
Fuse Monitoring Unit
S LockforCustomer-Supplied Padlock
TerminationAssembliesandSignalConditioners
ThefollowingtableslisttheTerminationAssembliesandSignalConditioners
supported.Youcanselectthemasrequiredatthetimeoforderingtheenclosure.
Table1-SupportedPhoenixTerminationAssembliesandSignalConditioners
Part PhoenixPart
Number
Description
BaseModule
VIP/S/D25M/BASE1-8/L/C/EX
2906595 VIPERbasemodule
(TerminationAssembly),
screwconnection(p/n
2906595)
• ShippedwithIOA
FEED-THRU/EX
(p/n2906598)
• Replacewiththe
IOAsbelow,as
required
IOAAI/AO/BFI/DS/0.5A/EX 2906599 IOA,analogprotection
withdisconnectsandtest
points
IOADI/DO/BFI/DS/1.0A/EX 2906600 IOA,digitalprotection
withdisconnectsandtest
points
IOAREL24VDO/BFI/3.0A/EX 2910153 IOA,24VDOrelay
IOAREL120VDO/BFI/3.0A/EX 2910154 IOA,120VDOrelay
IOAREL24VDI/BFI/1.0A/EX 2910155 IOA,24VDOrelay
IOAREL120VDI/1.0A/EX 2910157 IOA,120VDIrelay
IOAREL230VDO/BFI/NO/3.0A/EX 2910421 IOA,230VDOrelayNO
contact
IOAREL230VDO/BFI/NC/3.0A/EX 2910422 IOA,230VDOrelayNC
contact
IOAREL230VDI/1.0A/EX 2910423 IOA,230VDIrelay