The document discusses Belden's DataBus cables for FOUNDATION Fieldbus applications. It provides specifications for the cables, including their flame and temperature ratings. It also discusses Fieldbus communication protocols and how FOUNDATION Fieldbus works using trunk and spur cables. The document lists part codes and specifications for various Belden DataBus cable types, including unarmored, steel armored, and corrugated steel tape armored cables.

1.
Belden® Adds Temperature and Use Fieldbus is an all‐digital, serial, two‐ The table below provides suggested
Ratings and Expanded Multi‐pair way communications protocol that transmission distances (cable lengths)
Capabilities to Its Line of DataBus® standardizes the interconnection of for each type of cable.
Cables for FOUNDATION Fieldbus field devices at a communications rate
Applications of 31.25 kB/s. The field devices are
made accessible to communication
networks (running at 1 or 2.5 Mb/s),
through use of linking devices. Because
FRPVC Version Cables a simple twisted pair of wires can carry
Flame Test: UL1685 & IEC 60332‐3C the signals between the field devices
Oxygen Index: ASTM D2863 and the networks, Fieldbus users can
Temperature Index: ISO 4589:3 reduce the amount of I/O and control Because of the superior features of
UV resistance: UL2556 equipment (due to distribution of Belden DataBus cables, distance
control into the field devices), plus limitations can be exceeded without
they can use fewer Intrinsically Safe any system enhancements or any
FRLS PVC Version Cables (IS) barriers, cabinets, cables and sacrifice in system performance.
Flame Test: UL1685 & IEC 60332‐3C connectors. And, since the wire pair Belden Fieldbus cable features include:
Oxygen Index: ASTM D2863 can support multiple functions within a
Temperature Index: ISO 4589:3 single device (such as diagnostics, • Compliant with Fieldbus Spec IEC
UV resistance: UL2556 control and auto error correction), the 61158‐2(ISA/SP‐50)
Smoke Density: ASTMD 2843 twisted pair cable becomes the • Excellent electrical characteristics
Halogen acid gas: IEC 60754‐1 integral part of a more efficient, more • Low capacitance (for long runs)
reliable, and more cost‐effective • Versions in 22, 18, 16 and 14 AWG
industrial control system. stranded tinned copper conductors.
NHFR Version Cables • Standard multi‐pair cables available
Flame Test: UL1685 & IEC 60332‐3C Why FOUNDATION Fieldbus? in 2 to 24 pairs in 300V and NHFR or
Oxygen Index: ASTM D2863 With FOUNDATION Fieldbus, end users 600V designs
Temperature Index: ISO 4589:3 have the freedom to implement tightly • Versions available with Beldfoil®
UV resistance: UL2556 integrated digital control based on a shields and Beldfoil Plus Braid shields
Smoke Density: IEC 61034‐2 unified system architecture and a high‐ • PLTC‐ER and TC‐ER versions available
Halogen acid gas: IEC 60754‐1 & speed backbone (HSE) for plant • Easily identifiable Orange jacket
IEC 60754‐2 operations. This, in turn, removes the • Blue jacket available for
constraints on device and sub‐system Intrinsically Safe applications
interoperability. • Suitable for use in hazardous
applications
Fieldbus Cabling Features • RoHS compliant and CE approved
The number of devices possible on a
fieldbus link will vary depending on
factors such as the power consumption
of each device, the use of repeaters,
signal attenuation, type of cable used
and distance

2. Fieldbus High Speed Ethernet (HSE) Cables Custom Cable Constructions
Fieldbus has chosen Ethernet for HSE control backbone
100Mb/s transmissions. To help you with your selection of As always with Belden industrial cables,
Category 5e and Category 6 cables, Belden offers its custom constructions are available:
DataTuff® Industrial Ethernet Cable Selection Guide. For • Aluminum or Steel Interlocked Armor
more information on Belden DataTuff cables, please call • CPE jacket or NHFR jacket
Belden or ask for the Industrial Ethernet New Product • Various jacket colors
Bulletin. • Alternate Black and White color‐coded pairs
• Multi‐pair Type B 22 AWG, PLTC‐rated,
• individually and/or overall shielded
UNARMORED CABLES:
PART CODE AWG PAIRS OUTER JACKET
MATERIAL
3076F 18 1 FRPVC
1327A 18 2 FRPVC
1328A 18 5 FRPVC
1329A 18 8 FRPVC
1330A 18 12 FRPVC
1331A 18 16 FRPVC
1332A 18 20 FRPVC
1333A 18 24 FRPVC
S1359A 18 50 FRPVC
S3076NH 18 1 NHFR
S1327NH 18 2 NHFR
S1328NH 18 5 NHFR
S1329NH 18 8 NHFR
S1330NH 18 12 NHFR
S1331NH 18 16 NHFR
S1332NH 18 20 NHFR
S1333NH 18 24 NHFR
STEEL WIRE ARMORED CABLES
PART CODE AWG PAIRS INNER JACKET ARMOR OUTER JACKET
MATERIAL & TYPE MATERIAL
COLOR
YJ55281 18 1 FRPVC BLUE SWA FRPVC
YJ55282 18 2 FRPVC BLUE SWA FRPVC
YJ55283 18 3 FRPVC BLUE SWA FRPVC
YJ55284 18 4 FRPVC BLUE SWA FRPVC
YJ56849 18 1 NHFR ORANGE SWA NHFR

3. YJ56850 18 1 NHFR BLUE SWA NHFR
YJ55261 16 1 FRPVC BLUE SWA FRPVC
YJ55262 16 2 FRPVC BLUE SWA FRPVC
YJ55263 16 3 FRPVC BLUE SWA FRPVC
YJ55264 16 4 FRPVC BLUE SWA FRPVC
YJ56851 16 1 NHFR ORANGE SWA NHFR
BELCLAD CORRUGATED STEEL TAPE ARMORED CABLES
PART CODE AWG PAIRS INNER JACKET ARMOR OUTER JACKET
MATERIAL & TYPE MATERIAL
COLOR
YC58667 18 1 FRLS BLACK CSTA FRLS
YC58876 18 1 FRLS BLUE CSTA FRLS
YC55941 18 2 FRLS ORAGE CSTA FRLS
YC49382 18 1 NHFR BLUE CSTA NHFR
Y59104 16 1 FRLS BLUE CSTA FRLS
YC58952 16 1 FRLS BLACK CSTA FRLS
YC58668 16 2 FRLS BLACK CSTA FRLS
YC58669 16 4 FRLS BLACK CSTA FRLS
Y59105 16 12 FRLS BLACK CSTA FRLS
STEEL WIRE BRAID ARMORED CABLES :
PART CODE AWG PAIRS INNER JACKET ARMOR OUTER JACKET
MATERIAL & TYPE MATERIAL
COLOR
3076SWB 18 1 FRPVC ORANGE SWB FRPVC
1335SWB 16 1 FRPVC ORANGE SWB FRPVC
INTERLOCK ARMORED CABLE:
PART CODE AWG PAIRS INNER JACKET ARMOR OUTER JACKET
MATERIAL & TYPE MATERIAL
COLOR
YR58752 18 1 FRPVC ORANGE SIA FRPVC
123076F 18 1 FRPVC ORANGE AIA FRPVC
CONTINUOUSLY CORRUGATED ALUMIUM ARMORED CABLE:
PART CODE AWG PAIRS INNER JACKET ARMOR OUTER JACKET
MATERIAL & TYPE MATERIAL
COLOR
183076F 18 1 FRPVC ORANGE CCA FRPVC

4. Foundation Fieldbus cable How Fieldbus Works: • FNICO (Fieldbus Non‐Incendive
specifications as per IEC 61158‐2 COncept) non‐incendive bus limited
In analog control systems, power
• Shielded twisted pair (type A) instruments produce 4‐20mA • FISCO (Fieldbus Intrinsically Safe
• Impedance@ fr output signal that travels all the way COncept) intrinsically safe bus
= 100 Ω ± 20% from the remote distillation tank or limited power
• Attenuation @ 1.25∙ fr column unit to the control room, • IS Entity Concept intrinsically safe
≤ 3 dB/km RTU, remote I/O over a twisted pair bus limited power
• Capacitive unbalance to shield cable. Further these control signals
≤ 4nF/km (cables 30m or longer) travel from the end devices such as FISCO:
• Conductor DC Resistance actuators, pumps and other control The FISCO concept has been
= 24 Ω/km (18AWG) devices. Hundreds of cables make developed to provide a means of
=15 Ω/km (16AWG) their way through conduits and supplying additional power to
• Propagation Delay Change 0.25∙ fr cable trays till the end devices. the network/segment while still
to 1.25∙ fr keeping the energy level below that
≤ 1.7 µs/km Instead of running individual cable which could cause an explosion.
• Shield Coverage ≥ 90% to each device fieldbus allows Advantages of FISCO Model include:
multiple instruments to use a single • Higher bus current, allowing more
Trunk : cable called trunk which in further field devices per segment
connected to the spurs. • Elimination of cable parameter
calculations
A Trunk is the main communication
A Fieldbus trunk cable is a single • All field instruments including
highway between devices on a
twisted pair cable carrying both a cable used in FISCO model should
FOUNDATION fieldbus H1
digital signal and DC power that comply with the requirements as
network. The Trunk acts as a source
connects upto 12 field devices such per IEC 60079‐27.
of main supply to Spurs on the
as temperature, flow, level and
network.
pressure transmitters, actuators etc. FNICO:
to a DCS system. Most of these
Spur : FNICO is a derivative of FISCO and is
devices require 10‐20mA of current. specifically intended for fieldbus
installations in Zone 2 and Division 2
A Spur is an H1 branch line • Device operating voltage shall be hazardous areas. Advantages of
connecting to the Trunk that is a 9 to 32V FNICO model are:
final circuit. A Spur can vary in • Bus powered device have a • Higher levels of bus current,
length from 1 m (3.28 ft.) to 120 m current rating of 10‐30mA. allowing more devices to be
(394 ft.). • Max. cable run length is 1900mts. connected to the hazardous
area trunk.
Fieldbus in hazardous locations:
A significant advantage of Fieldbus
technology is the fact that it covers
all possible application areas,
including hazardous locations.
Following are the methods used for
limiting for installations in classified
area:
• High power trunk with current
limiting device couplers (non‐
incendive)
• High power trunk with isolating
device couplers (intrinsically safe)