Manufacturers' Representatives
Salmen Tech Company Inc.
533 N Street
Bethel Park, PA 15102
PH: 800-304-1822     
Fax: 412-854-1851   
Email us by clicking here
Since their introduction in 2002, the MTL
simplex FISCO power supplies and wiring
components have become the definitive
solution for intrinsically safe fieldbus, and
have been chosen by influential end users
to protect major hazardous area networks
worldwide. Plant operators have been able
to take advantage of the benefits of a fully
live-workable field network without the
onerous restrictions on segment loading
and maximum cable length that were
imposed by earlier IS techniques. The
existing product portfolio has established
MTL’s credentials as technical leader for
intrinsically safe fieldbus.

With the introduction of the 910x series of
power supplies, MTL are the first company
to offer true redundancy for the FISCO
concept, which will provide the highest
level of reliability for critical hazardous area
applications.
Fieldbus Power Supplies-Fieldbus test Equipment-Fieldbus wiring components
Fieldbus surge protection
MTL is a rich source of fieldbus power supplies that
provide reliable power for fieldbus networks in safe
and hazardous areas. From bulk power sources,
through general purpose to fully redundant supplies to
energy limited power supplies for full live working in
hazardous area applications; MTL has a solution to meet
your fieldbus requirements.

The wide range of power supplies can be easily
integrated into your choice of control system with a
range of solutions to integrate with all fieldbus control
system suppliers.

Hazardous area applications are supported with the
High Energy Trunk redundant or isolated power
supplies integrated with wiring components or Energy
Limited Trunk with FISCO (Fieldbus Intrinsically Safe
COncept) power supplies for Zone 1/Div 1 locations and
MTL’s unique FNICO (Fieldbus Non-Incendive COncept)
power supplies for Zone 2/Div 2.
The MTL5995-PS isolated power supply is a compact,
DIN-rail mounting unit providing plug in connectors to
simplify installation and maintenance.


The FPS-DT or the FPS-D Dual Power Supply powers two
independent fieldbus segments. They consist of a Dual
Coupler base and two plug-in Isolated Power Modules.
The function of the Dual Coupler Base is to:

•Bring in two sources of input 24 VDC power
•Provide the mechanical mounting and the electrical
connection for two Isolated Power Modules
•Provide network cable connection to the Host and to
the network’s field segment for each fieldbus segment
•Monitor the power supply and segment operation and
generate an alarm in case of failure
Two Isolated Power Modules, or IPMs, plug into the
base. Each provides galvanically isolated, fieldbus-
conditioned power to its fieldbus segment. Each IPM
can provide up to 350 mA at a minimum of 25 V dc of
power.
FPS-DT   FPS-D (Dual) shown
below
Click here to download MTL5995 fieldbus
Power supply data sheet
Fieldbus Intrinsically Safe COncept (FISCO) defines the future for intrinsically safe fieldbus.

FISCO Power Supply and FISCO                                                                           Redundant Power Supplies
Redundant
FISCO for
your
fieldbus
network
using
MTL's
unique
range of
power
supplies.
Fieldbus Intrinsically
Safe COncept (FISCO)
defines the future for
intrinsically safe fieldbus
by removing the severe
current limitation that
existed under the earlier
approval’s regime.

More field instruments
can be connected to
each fieldbus trunk and
the safety assessment
and documentation is
greatly simplified.

For easy integration with
DCS Fieldbus Interface
Modules (FIMs), MTL
can supply Termination
Boards that use the DCS
client system
interconnect cables.
These support up to four
power supplies and have
built-in segment
terminators.

Users wanting to connect
to entity-only certified
devices please refer to
our spur connector
range.
Click here to download FISCO
Power supply Info
For applications in Zone 2 and Division 2 hazardous areas, MTL’
s Fieldbus Non-Incendive Concept (FNICO) brings the benefits of
FISCO together with higher current levels, allowing yet more
devices per trunk. Live-working is permissible without gas
clearance, allowing devices to be connected or removed while
under power. MTL FNICO supplies 9111-NI (IIC/Group A) and
9112-NI (IIB/Group C, D) repeat the H1/Profibus-PA signal as a
non-incendive bus for connection to suitably approved field
instruments in Zone 2 or Division 2. For easy integration of
FNICO power supplies with DCS Fieldbus Interface Modules
(FIMs), MTL supply Termination Boards that use the DCS client
system interconnect cables. The boards support up to four
power supplies and feature built-in segment terminators. Users
wanting to connect to entity-only certified devices please refer to
our spur connector range.
FNICO Power Supplies
Click here to
download FNICO
data sheet
FIELDBUS WIRING COMPONENTS
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Click here for a FISCO
PowerPoint Presentation
Click here for PowerPoint Presentation on wiring and cables
Click here for a PowerPoint Presentation on Fieldbus Design Information
2, 4, 8, 10 & 12 way passive wiring
hubs for use in FOUNDATION
fieldbus™…
Click here to go to MegaBlocks wiring
hubs
Process Junction Boxes
Spacious junction boxes designed
for fieldbus wiring components and
multiplexers.
MTL has added a range of intrinsically safe Fieldbus Barriers
to their portfolio of fieldbus power supplies and wiring
components. Together with the class-leading FISCO power
supplies, the new units allow MTL to provide the best
technical solution and lowest cost for every IS fieldbus
application. The barrier units are compatible with the MTL-
Relcom FPS and F800 range of redundant power supplies,
including integrated power systems for all major fieldbus
control system vendors.

•Short-circuit protected IS spurs
•Mount in Zone 1 or Zone 2
•EEx ia IIC spur connections
•Compatible with Entity and FISCO certified IS field devices
•Available in a choice of GRP or stainless steel enclosures
•Custom junction box design capability to meet project
requirements
Click here for Fieldbus Junction boxes
spec sheets
Click here for Fieldbus Junction Boxes
Drawings
Test Equipment
Fieldbus diagnostic tools from
the industry's leading supplier.
Click here for
Test equipment
Fieldbus devices, including
displays, temperature
multiplexers and diagnostic
module.
Click here
Click here to go to MTL Fieldbus surge protection