IEC 61784-5-6:2010

IEC 61784-5-6 ®
Edition 2.0 2010-07
INTERNATIONAL
STANDARD
colour
inside
Industrial communication networks – Profiles –
Part 5-6: Installation of fieldbuses – Installation profiles for CPF 6

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IEC 61784-5-6 ®
Edition 2.0 2010-07
INTERNATIONAL
STANDARD
colour
inside
Industrial communication networks – Profiles –
Part 5-6: Installation of fieldbuses – Installation profiles for CPF 6

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
X
ICS 25.040.40; 35.100.40 ISBN 978-2-88912-054-3
– 2 – 61784-5-6 © IEC:2010(E)
CONTENTS
FOREWORD.4
INTRODUCTION.6
1 Scope.7
2 Normative references .7
3 Terms, definitions and abbreviated terms .7
4 CPF 6: Overview of installation profiles .7
5 Installation profile conventions .7
6 Conformance to installation profiles.8
Annex A (normative) CPF 6 Type 8 network specific installation profile.10
Annex B (normative) CPF 6 Ethernet network specific installation profile .34
Bibliography.50

Figure 1 – Standards relationships.6
Figure A.1 – Type 8 network structure example .14
Figure A.2 – Example of a Type 8 network configuration.15
Figure A.3 – Sub-D connector pin assignments.29
Figure A.4 – M23 circular connector pin assignments .29
Figure A.5 – M12 circular connector pin assignments .30
Figure A.6 – Terminal connector at the device .30
Figure B.1 – Plug connector interface M12-FO.43
Figure B.2 – Adaptor connector interface M12-FO .44
Figure B.3 – Terminal connector at the device .48

Table A.1 – Basic network characteristics for balanced cabling not based on Ethernet .16
Table A.2 – Network characteristics for optical fibre cabling.17
Table A.3 – Information relevant to balanced cable: fixed cables .18
Table A.4 – Information relevant to balanced cable: cords .19
Table A.5 – Remote bus fibre optic cable length .21
Table A.6 – Connectors for copper cabling CPs not based on Ethernet.22
Table A.7 – Optical fibre connecting hardware .22
Table A.8 – Relationship between FOC and fibre types (Type 8 networks).23
Table A.9 – Colour code for balanced cables used by Type 8 networks .24
Table A.10 – Parameters for balanced cables .27
Table A.11 – Parameters for silica optical fibre cables .27
Table A.12 – Parameters for POF optical fibre cables .27
Table A.13 – Parameters for hard clad silica optical fibre cables.28
Table A.14 – Pin assignment of the terminal connector.30
Table B.1 – Network characteristics for balanced cabling based on Ethernet .37
Table B.2 – Network characteristics for optical fibre cabling.37
Table B.3 – Information relevant to balanced cable: fixed cables .39
Table B.4 – Information relevant to balanced cable: cords .40
Table B.5 — Information relevant to optical fibre cables.41

61784-5-6 © IEC:2010(E) – 3 –
Table B.6 – Connectors for balanced cabling CPs based on Ethernet .42
Table B.7 – Optical fibre connecting hardware .42
Table B.8 – Relationship between FOC and fibre types (CP 6/2 Ethernet network) .45
Table B.9 – Parameters for balanced cables.47
Table B.10 – Parameters for silica optical fibre cables .47
Table B.11 – Parameters for POF optical fibre cables .47
Table B.12 – Parameters for hard clad silica optical fibre cables.48

– 4 – 61784-5-6 © IEC:2010(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INDUSTRIAL COMMUNICATION NETWORKS –
PROFILES –
Part 5-6: Installation of fieldbuses –
Installation profiles for CPF 6

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
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2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61784-5-6 has been prepared by subcommittee 65C: Industrial
networks, of IEC technical committee 65: Industrial-process measurement, control and
automation.
This second edition cancels and replaces the first edition published in 2007. This edition
constitutes a technical revision.
This edition includes the following technical changes with respect to the previous edition:
a) alignment to IEC 61918:2010;
b) addition of the M12-FO connector.
This standard is to be used in conjunction with IEC 61918:2010.
The text of this standard is based on the following documents:

61784-5-6 © IEC:2010(E) – 5 –
FDIS Report on voting
65C/602/FDIS 65C/616/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of the IEC 61784-5 series, published under the general title Industrial
communication networks – Profiles – Installation of fieldbuses, can be found on the IEC
website.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
– 6 – 61784-5-6 © IEC:2010(E)
INTRODUCTION
This International Standard is one of a series produced to facilitate the use of communication
networks in industrial control systems.
IEC 61918:2010 provides the common requirements for the installation of communication
networks in industrial control systems. This installation profile standard provides the
installation profiles of the communication profiles (CP) of a specific communication profile
family (CPF) by stating which requirements of IEC 61918 fully apply and, where necessary, by
supplementing, modifying, or replacing the other requirements (see Figure 1).
For general background on fieldbuses, their profiles, and relationship between the installation
profiles specified in this standard, see IEC/TR 61158-1.
Each CP installation profile is specified in a separate annex of this standard. Each annex is
structured exactly as the reference standard IEC 61918 for the benefit of the persons
representing the roles in the fieldbus installation process as defined in IEC 61918 (planner,
installer, verification personnel, validation personnel, maintenance personnel, administration
personnel). By reading the installation profile in conjunction with IEC 61918, these persons
immediately know which requirements are common for the installation of all CPs and which
are modified or replaced. The conventions used to draft this standard are defined in Clause 5.
The provision of the installation profiles in one standard for each CPF (for example
IEC 61784-5-6 for CPF 6), allows readers to work with standards of a convenient size.
PLANNING
DESIGN AND
INSTALLATION
Offices
GENERIC
OFFICE PREMISES ISO/IEC 11801
Annex
CABLING
Home
HOMES ISO/IEC 15018
Annex
ISO/IEC Data centre
DATA CENTRES ISO/IEC 24764
14763-2 Annex
BETWEEN
Industrial
AUTOMATION ISO/IEC 24702
Annex
ISLANDS
BETWEEN
AUTOMATION
Installation
INDUSTRIAL PREMISES IEC 61158
IEC 61918
ISLANDS
Profiles
series
IEC 61784-5 series
and (Common
(Selection +
WITHIN
IEC 61784-1, -2 requirements)
Add/Repl/Mod)
AUTOMATION
ISLANDS
Com m on structure
APPLICATION-SPECIFIC
CABLING
Figure 1 – Standards relationships

61784-5-6 © IEC:2010(E) – 7 –
INDUSTRIAL COMMUNICATION NETWORKS –
PROFILES –
Part 5-6: Installation of fieldbuses –
Installation profiles for CPF 6

1 Scope
This part of IEC 61784 specifies the installation profiles for CPF 6 (INTERBUS) .
The installation profiles are specified in the annexes. These annexes are read in conjunction
with IEC 61918:2010.
2 Normative references
The following referenced documents are indispensable for the application of this document.
For dated references, only the edition cited applies. For undated references, the latest edition
of the referenced document (including any amendments) applies.
IEC 61918:2010, Industrial communication networks – Installation of communication networks
in industrial premises
The normative references of IEC 61918:2010, Clause 2, apply. For profile specific normative
references, see Clauses A.2 and B.2.
3 Terms, definitions and abbreviated terms
For the purposes of this document, the terms, definitions and abbreviated terms of
IEC 61918:2010, Clause 3, apply. For profile specific terms, definitions and abbreviated terms
see Clauses A.3 and B.3.
4 CPF 6: Overview of installation profiles
CPF 6 consists of seven communication profiles (see IEC 61784-1 for CP 6/1, CP 6/2, CP 6/3,
see 61784-2 for CP 6/4, CP 6/5, CP 6/6, see 61784-3-6 for FSCP 6/7).
The CPF 6 Type 8 network (non Ethernet based) installation profile is specified in Annex A.
The CP 6/2 Ethernet specific installation profile file is specified in Annex B.
5 Installation profile conventions
The numbering of the clauses and subclauses in the annexes of this standard corresponds to
the numbering of IEC 61918 main clauses and subclauses.
———————
INTERBUS is a trade name of INTERBUS Club, an independent organisation of users and vendors of
INTERBUS products. This information is given for the convenience of users of this International Standard and
does not constitute an endorsement by IEC of the trademark holder or any of its products. Compliance to this
profile does not require use of the trade name INTERBUS. Use of the trade name INTERBUS requires
permission of the trade name holder.

– 8 – 61784-5-6 © IEC:2010(E)
The annex clauses and subclauses of this standard supplement, modify, or replace the
respective clauses and subclauses in IEC 61918.
Where there is no corresponding subclause of IEC 61918 in the normative annexes in this
standard, the subclause of IEC 61918 applies without modification.
The annex heading letter represents the installation profile assigned in Clause 4. The annex
(sub)clause numbering following the annex letter shall represent the corresponding
(sub)clause numbering of IEC 61918.
EXAMPLE “Annex B.4.4” in IEC 61784-5-3 means that CP 3/2 specifies the Subclause 4.4 of IEC 61918.
All main clauses of IEC 61918 are cited and apply in full unless otherwise stated in each
normative installation profile annex.
If all subclauses of a (sub)clause are omitted, then the corresponding IEC 61918 (sub)clause
applies.
If in a (sub)clause it is written “Not applicable”, then the corresponding IEC 61918 (sub)clause
does not apply.
If in a (sub)clause it is written “Addition:”, then the corresponding IEC 61918 (sub)clause
applies with the additions written in the profile.
If in a (sub)clause it is written “Replacement:”, then the text provided in the profile replaces
the text of the corresponding IEC 61918 (sub)clause.
NOTE A replacement can also comprise additions.
If in a (sub)clause it is written “Modification:”, then the corresponding IEC 61918 (sub)clause
applies with the modifications written in the profile.
If all (sub)clauses of a (sub)clause are omitted but in this (sub)clause it is written
“(Sub)clause x has addition:” (or “replacement:”) or “(Sub)clause x is not applicable.”, then
(sub)clause x becomes valid as declared and all the other corresponding
IEC 61918 (sub)clauses apply.
6 Conformance to installation profiles
Each installation profile within this standard includes part of IEC 61918:2010. It may also
include defined additional specifications.
as either
A statement of compliance to an installation profile of this standard shall be stated
Compliance to IEC 61784-5-6:2010 for CP 6/m or
Compliance to IEC 61784-5-6 (Ed.2.0) for CP 6/m
where the name within the angle brackets < > is optional and the angle brackets are not to be
included. The m within CP 6/m shall be replaced by the profile number 1 to 2.
NOTE The name may be the name of the profile, for example INTERBUS.
If the name is a trade name then the permission of the trade name holder shall be required.
———————
In accordance with ISO/IEC Directives
The date should not be used when the edition number is used.

61784-5-6 © IEC:2010(E) – 9 –
Product standards shall not include any conformity assessment aspects (including quality
management provisions), neither normative nor informative, other than provisions for product
testing (evaluation and examination).

– 10 – 61784-5-6 © IEC:2010(E)
Annex A
(normative)
CPF 6 Type 8 network specific installation profile

A.1 Installation profile scope
Addition:
This standard specifies the installation profile for CPF 6 Type 8 networks and the related
Communication Profiles:
• CP 6/1, CP 6/2, CP 6/3 - specified in IEC 61784-1;
• CP 6/4, CP 6/5, CP 6/6 - specified in IEC 61784-2;
• FSCP 6/7 - specified in IEC 61784-3-6.
A.2 Normative references
Addition:
IEC 60794-1-2:2003, Optical fibre cables – Part 1-2: Generic specification - Basic optical
cable test procedures
IEC 61156-1:2007, Multicore and symmetrical pair/quad cables for digital communications –
Part 1: Generic specification
IEC 61156-5 - Ed. 1.0, Multicore and symmetrical pair/quad cables for digital communications
– Part 5: Symmetrical pair/quad cables with transmission characteristics up to 600 MHz –
Horizontal floor wiring – Sectional specification
IEC 60189-1:2007, Low-frequency cables and wires with PVC insulation and PVC sheath –
Part 1: General test and measuring methods
A.3 Installation profile terms, definitions, and abbreviated terms
A.3.1 Terms and definitions
Addition:
A.3.1.1
bus coupler
a device that divides the Type 8 network into segments by opening the ring and integrating
another ring at this point
A.3.1.2
local bus
a ring segment of a Type 8 network with alternate media specifications, which is coupled to a
remote bus device via a bus coupler
A.3.1.3
local bus device
device that operates as a slave on a local bus

61784-5-6 © IEC:2010(E) – 11 –
A.3.1.4
master
device that controls the data transfer on the Type 8 network and initiates the media access of
the slaves by sending messages and that constitutes the interface to the control system
A.3.1.5
remote bus
a ring segment of a network
A.3.1.6
remote bus
device operating as a slave on a remote bus
A.3.1.7
remote bus link
connection of two remote bus devices
A.3.1.8
ring segment
one section of a Type 8 network
A.3.1.9
slave
a device that accesses the medium only after it has been initiated by the preceding slave or
master
A.3.2 Abbreviated terms
Addition:
BC Bus coupler
COM Ground line
/DI Incoming interface: send data line –
Outgoing interface: receive data line –
DI Incoming interface: send data line +
Outgoing interface: receive data line +
/DO Incoming interface: receive data line –
Outgoing interface: send data line -
DO Incoming interface: receive data line +
Outgoing interface: send data line +
PELV Protective Extra Low Voltage
SELV Safety Extra Low Voltage
A.3.3 Conventions for installation profiles
Not applicable.
– 12 – 61784-5-6 © IEC:2010(E)
A.4 Installation planning
A.4.1 Introduction
A.4.1.1 Objective
A.4.1.2 Cabling in industrial premises
A.4.1.3 The planning process
A.4.1.4 Specific requirements for CPs
Not applicable.
A.4.1.5 Specific requirements for generic cabling in accordance with ISO/IEC 24702
Not applicable.
A.4.2 Planning requirements
A.4.2.1 Safety
A.4.2.1.1 General
A.4.2.1.2 Electric safety
Addition:
Power distribution system shall comply with IEC 60364-1 312.2.1 TN-S systems, i.e. earthed
by bonding of bodies with separated conductors for neutral (N) and protection earth (PE).
Otherwise there are additional efforts necessary to avoid currents on the shield, i.e. an a.c.
earthed system on one end in a network with balanced cables or a network built with FO-
cables. For networks built with OF-cables the power distribution system should comply with
IEC 60364-1 312.2.1 TN S systems.
PELV is the default version for the power supply with extra-low-voltage, but SELV may also
be used. Temporary connected devices shall be powered by PELV or SELV.
A.4.2.1.3 Functional safety
A.4.2.1.4 Intrinsic safety
Not applicable.
A.4.2.1.5 Safety of optical fibre communication systems
A.4.2.2 Security
A.4.2.3 Environmental considerations and EMC
A.4.2.3.1 Description methodology
A.4.2.3.2 Use of the described environment to produce a bill of material
Addition:
To make fieldbus installation work easier for inexperienced planners, the user shall determine
suitability of the components for the targeted environment through agreements with the
component providers. The planner shall also observe the related technical data from the
active devices. Depending on the expected environment he should define additional
requirements.
61784-5-6 © IEC:2010(E) – 13 –
The planner shall take into account the mating or terminating interface of devices to be
connected to the fieldbus network.
The planner also shall take care about the environmental conditions of the whole Type 8
network and select suitable mitigation techniques in addition to meet the respective
requirements. Products necessary for mitigation also shall be mentioned in the bill of material.
A.4.2.4 Specific requirements for generic cabling in accordance with ISO/IEC 24702
Not applicable.
A.4.3 Network capabilities
A.4.3.1 Network topology
A.4.3.1.1 Common description
A.4.3.1.2 Basic physical topologies for passive networks
Not applicable.
A.4.3.1.3 Basic physical topologies for active networks
Replacement:
For Type 8 networks only the ring topology specified in IEC 61158-2:2007 shall be used.
NOTE The Type 8 ring topology is achieved with specific cables and resembles a linear tree topology. Futher
explanation of the physical layer of Type 8 networks can be found in IEC 61158-2.
A.4.3.1.4 Combination of basic topologies
Replacement:
The combination of several topologies may also be used according to A.4.3.1.5
A.4.3.1.5 Specific requirements for CPs
Addition:
The general structure is a ring topology with special cables to build tree like configurations.
Bus couplers allow a branch from the remote bus to the local bus or to a further remote bus.
Figure A.1 shows a Type 8 network structure example. There is no limit for the sub-leveling of
remote buses. Only one local bus can be connected to a remote bus. A maximum from 63
devices can be connected to one local bus.

– 14 – 61784-5-6 © IEC:2010(E)
Master
w
Key
a
w outgoing interface of the master
BC a
a incoming interface of a slave
w1
w1 first outgoing interface of a slave
Slave
w2
w2 second outgoing interface of a slave
w2
The ring segment level is increased when the devices
a
are connected to w1.
Slave
a
w2
BC
a
w1
w2
Slave
w2
a
a
Slave Slave
w2 w2
Bus level 0 Bus level 1
Figure A.1 – Type 8 network structure example
The remote bus link length (i.e. the cable between two devices on a remote bus link) shall be
between 0 m and the maximum length for the used bit rate (see Table A.1). The local bus link
length (i.e. the cable between two devices on a local bus link) shall be between 0 m and 10 m.
Figure A.2 shows a Type 8 network configuration example with bus length indications.

61784-5-6 © IEC:2010(E) – 15 –
Master
BC Slave Slave
Local bus branch
BC
Remote bus branch
BC
Slave Slave
Remote bus branch
Slave
BC
Slave
Figure A.2 – Example of a Type 8 network configuration
A.4.3.1.6 Specific requirements for generic cabling in accordance with
ISO/IEC 24702
Not applicable.
A.4.3.2 Network characteristics
Remote bus (max. 12,8 km)
Bus segment (max. 400 m)
– 16 – 61784-5-6 © IEC:2010(E)
A.4.3.2.1 General
A.4.3.2.2 Network characteristics for balanced cabling not based on Ethernet
Table A.1 provides values based on the template given in IEC 61918:2010, Table 1.
Table A.1 – Basic network characteristics for balanced cabling not based on Ethernet
Characteristic Type 8 network
Basic transmission technology Type 8
Length / transmission speed Segment length
m
a
500 kbit/s 400 m between nodes
a
2 Mbit/s 150 m between nodes
a
8 Mbit/s 125 m between nodes
a
16 Mbit/s 100 m between nodes
Maximum capacity Max. No.
b
Devices / segment Remote Bus: 256
b
Local Bus: 63
b
Number of devices / network Remote Bus: 256
b
Local Bus: 256
a
The maximum length of a Type 8 network depends on the number of devices
supported by the master and could be calculated by multiplication of link length
by the number of devices.
b
The maximum number of all device in one Type 8 network is limited to 256.

A.4.3.2.3 Network characteristics for balanced cabling based on Ethernet
Not applicable.
A.4.3.2.4 Network characteristics for optical fibre cabling
Replacement: Table A.2 provides values based on the template given in IEC 61918:2010,
Table 3.
61784-5-6 © IEC:2010(E) – 17 –
Table A.2 – Network characteristics for optical fibre cabling
Type 8 network
Optical fibre type Description
Standard IEC 60793-2-50; Type B1
Single mode silica
Nominal transmission 1 310 nm
wavelength (nm)
Attenuation coefficient at λ
≤ 0,5 dB/km
Alternative description
9 … 10
Mode field diameter (μm)
Cladding diameter (μm)
Minimum length (m) 0
Maximum length (m) 15 000
Standard IEC 60793-2-10; Type A1a
Multimode silica
Nominal transmission 1 300 nm
wavelength (nm)
Attenuation coefficient at λ
≤ 0,7 dB/km
Modal bandwidth (MHz × km)
at λ
Alternative description
Core diameter (μm)
Cladding diameter (μm) 125
NA 0,20
Minimum length (m) 0
Maximum length (m) 3 000
Standard IEC 60793-2-10; Type A1b
Multimode silica
Nominal transmission 1 300 nm
wavelength (nm)
Attenuation coefficient at λ
≤ 0,7 dB/km
Modal bandwidth (MHz × km) 600
at λ
Alternative description
62,5
Core diameter (μm)
Cladding diameter (μm)
NA 0,2
Minimum length (m) 0
Maximum length (m) 3 000
Standard IEC 60793-2-40; Type A4a
POF
Nominal transmission 650 nm
wavelength (nm)
Attenuation coefficient at λ
≤ 170 dB/km
Modal bandwidth (MHz × km) ≥
at λ
10 MHz × 100m
Alternative description
Core diameter (μm)
1 000
Cladding diameter (μm)
NA
0,5 ± 0,05
Minimum length (m) 0
Maximum length (m) 70
Standard IEC 60793-2-30; Type A3c
Plastic clad silica
Nominal transmission 650 nm
wavelength (nm)
Attenuation coefficient at λ
≤ 10 dB/km
Modal bandwidth (MHz × km) ≥ 17 MHz × km
at λ
Alternative description
Core diameter (μm)
Cladding diameter (μm)
NA 0,37
Minimum Length (m) 0
Maximum Length (m) 400
– 18 – 61784-5-6 © IEC:2010(E)
A.4.3.2.5 Specific network characteristics
Not applicable.
A.4.3.2.6 Specific requirements for generic cabling in accordance with
ISO/IEC 24702
Not applicable.
A.4.4 Selection and use of cabling components
A.4.4.1 Cable selection
A.4.4.1.1 Common description
A.4.4.1.2 Copper cables
A.4.4.1.2.1 Balanced cables for Ethernet based CPs
Not applicable.
A.4.4.1.2.2 Copper cables for non Ethernet based CPs
Replacement:
Table A.3 and
Table A.4 provide values based on the template given in IEC 61918:2010, Table 4 and
Table 5.
Table A.3 – Information relevant to balanced cable: fixed cables
Characteristic Type 8 network
Nominal impedance of cable (tolerance) 120 Ω ± 20 % at f= 0,064 MHz
100 Ω ± 15 Ω at f > 1 MHz
Test method IEC 61156-1, 6.3.1
DCR of conductors
max. 9,6 Ω / 100 m
Test method IEC 60189-1, 8.1
DCR of shield Not defined
Number of conductors
3 × 2, twisted pair
Shielding Yes
Colour code for conductor DO = yellow
/DO = green
DI = gray
/DI = pink
COM = brown
Jacket colour requirements Green, RAL 6017
Jacket material Application dependant
Resistance to harsh environment (e.g. UV, oil resist, LS0H) Cable types for different applications available
Agency ratings Cable types with different ratings available
Cross section
min. 0,20 mm
61784-5-6 © IEC:2010(E) – 19 –
Characteristic Type 8 network
Dielectric strength
- Conductor/conductor 1 000 V , 1 min
r.m.s
- Conductor/shield
1 000 V , 1 min
r.m.s
Test method IEC 60189-1, .8.2
Insulation resistance
min 150 MΩ for a cable of 1 km in length
(after dielectric strength test)
Test method IEC 60189-1, 8.3
Maximum transfer impedance
- at 30 MHz 250 mΩ/m
Mutual capacitance (at 800 Hz) Max 60 nF for a cable of 1 km in length
Test method IEC 60189-1, 8.4
Min. near end cross talk loss
(NEXT) for a cable of 100 m
- at 0,772 MHz 61 dB
- at 1 MHz 59 dB
- at 2 MHz 55 dB
- at 4 MHz 50 dB
- at 8 MHz 46 dB
- at 10 MHz 44 dB
- at 16 MHz 41 dB
- at 20 MHz 40 dB
Test method IEC 61156-1, 6.3.5
Max. attenuation for a cable of 100 m
- at 0,256 MHz 1,5 dB
- at 0,772 MHz 2,4 dB
- at 1 MHz 2,7 dB
- at 4 MHz 5,2 dB
- at 10 MHz 8,4 dB
- at 16 MHz 11,2 dB
- at 20 MHz 11,9 dB
Test method IEC 61156-1, 6.3.3

Table A.4 – Information relevant to balanced cable: cords
Characteristic Type 8 network
Nominal impedance of cable (tolerance) 120 Ω ± 20 % at f= 0,064 MHz
100 Ω ± 15 Ω at f > 1 MHz
Test method IEC 61156-1, 6.3.1
DCR of conductors
max. 9,6 Ω / 100 m
Test method IEC 60189-1, 8.1
DCR of shield Not defined
Number of conductors
3 × 2, twisted pair
Shielding Yes
– 20 – 61784-5-6 © IEC:2010(E)
Characteristic Type 8 network
Colour code for conductor DO = yellow
/DO = green
DI = gray
/DI = pink
COM = brown
Jacket colour requirements Green, RAL 6017
Jacket material Application dependant
Resistance to harsh environment (e.g. UV, oil resist, LS0H) Cable types for different applications available
Agency ratings Cable types with different ratings available
Cross section 2
min. 0,20 mm
Dielectric strength
- Conductor/conductor 1 000 V , 1 min
r.m.s
- Conductor/shield
1 000 V , 1 min
r.m.s
Test method IEC 60189-1, 8.2
Insulation resistance
min 150 MΩ for a cable of 1 km in length
(after dielectric strength test)
Test method IEC 60189-1, 8.3
Maximum transfer impedance
- at 30 MHz 250 mΩ/m
Mutual capacitance (at 800 Hz) Max 60 nF for a cable of 1 km in length
Test method IEC 60189-1, 8.4
Min. near end cross talk loss
(NEXT) for a cable of 100 m
- at 0,772 MHz 61 dB
- at 1 MHz 59 dB
- at 2 MHz 55 dB
- at 4 MHz 50 dB
- at 8 MHz 46 dB
- at 10 MHz 44 dB
- at 16 MHz 41 dB
- at 20 MHz 40 dB
Test method IEC 61156-1, 6.3.5
Max. attenuation for a cable of 100 m
- at 0,256 MHz 1,5 dB
- at 0,772 MHz 2,4 dB
- at 1 MHz 2,7 dB
- at 4 MHz 5,2 dB
- at 10 MHz 8,4 dB
- at 16 MHz 11,2 dB
- at 20 MHz 11,9 dB
Test method IEC 61156-1, 6.3.3

A.4.4.1.3 Cables for wireless installation
A.4.4.1.4 Optical fibre cables
Addition:
61784-5-6 © IEC:2010(E) – 21 –
The cable shall be according to IEC 61158-2, 27.7.2 and 28.1.
Polymer optical fibre cable shall be detailed according to IEC 61158-2, 28.6.2.
Polymer clad optical fibre cable shall be detailed according to IEC 61158-2, 28.6.3.
A.4.4.1.5 Special purpose balanced and optical fibre cables
Addition:
The specification from additional mechanical data depends on the application. The electrical
or optical data apply also for specific cabling (see Table A.5).
Table A.5 – Remote bus fibre optic cable length
Fibre type Minimum length Maximum length
Polymer optical fibre 0 m 50 m (see notes 1, 2)
Plastic clad silica fibre 0 m 300 m (see notes 1, 2)
NOTE 1 This does not exclude longer distances between two devices e.g. by using receive circuits
with a lower minimum optical receiver sensitivity than specified.
NOTE 2 The maximum length may be reduced in cases where special cables with higher
attenuation than the standard cables specified are used.

A.4.4.1.6 Specific requirements for CPs
Addition:
The specification from additional mechanical data depends on the application. The electrical
or optical data apply also for specific cabling.
A.4.4.1.7 Specific requirements for generic cabling in accordance with
ISO/IEC 24702
Not applicable.
A.4.4.2 Connecting hardware selection
A.4.4.2.1 Common description
A.4.4.2.2 Connecting hardware for balanced cabling CPs based on Ethernet
Not applicable.
A.4.4.2.3 Connecting hardware for copper cabling CPs not based on Ethernet
Replacement: Table A.6 provides values based on the template given in IEC 61918:2010,
Table 8.
– 22 – 61784-5-6 © IEC:2010(E)
Table A.6 – Connectors for copper cabling CPs not based on Ethernet
IEC
60807-2 IEC 60947-5-2 ANSI/NFPA
T3.5.29 R1-2003
or or IEC 61169-8 Others
IEC IEC 61076-2-101
60807-3
M12-5 with M12-5 with M12-n with Coaxial 7/8-16 Open Terminal M23,
Sub-D M 18
A-coding B-coding X-coding (BNC) UN-2B THD style block 9 pos
CPF 6
Type 8
a
Yes No Yes No No No No Yes Yes
Yes
net
work
NOTE For M12-5 connectors, there are many applications using these connectors that are not compatible and when

mixed may cause damage to the applications.
a
Hybrid connector as specified in IEC 61158-2, Annex M.3
A.4.4.2.4 Connecting hardware for wireless installation
A.4.4.2.5 Connecting hardware for optical fibre cabling
Table A.7 provides values based on the template given in IEC 61918:2010
Replacement:
Table 9.
Table A.7 – Optical fibre connecting hardware
IEC 61754 IEC 61754 IEC 61754 IEC 61754 IEC 61754 IEC 61754 Others
-2 -4 -24 -24-21 -20 -22
BFOC 2,5 SC SC-RJ Sealed LC F-SMA Hybrid M12-
SC-RJ connec FO
tor
CPF 6
a b
Type 8 Yes No Yes Yes No Yes
Yes Yes
network
NOTE IEC 61754 series define the optical fibre connector mechanical interfaces; performance specifications for
optical fibre connectors terminated to specific fibre types are standardised in IEC 61753 series.
a
As specified in IEC 61158-2, Annex M.3
b
As defined in Figure B.1 and Figure B.2 of this standard. The M12-FO connector is under consideration for
inclusion in the IEC 61754-24 series.

Replacement: Table A.8 provides values based on the template given in IEC 61918:2010,
Table 10.
61784-5-6 © IEC:2010(E) – 23 –
Table A.8 – Relationship between FOC and fibre types (Type 8 networks)

Fibre type
9.10/125 50/125 μm 62,5/125 μm 980/1 000 μm 200/230 μm Others
μm single multimode multimode step index step index
mode silica silica POF hard clad
silica silica
BFOC/2,5 No No Yes No Yes No
SC No No No No No No
SC-RJ Yes Yes Yes Yes Yes No
LC No No No No No No
F-SMA No No No Yes Yes No
Hybrid No No No Yes Yes No
connector
M12-FO Yes Yes Yes Yes Yes No
A.4.4.2.6 Specific requirements for CPs
Not applicable.
A.4.4.2.7 Specific requirements for generic cabling in accordance with
ISO/IEC 24702
Not applicable.
A.4.4.3 Connections within a channel/permanent link
A.4.4.3.1 Common description
Not applicable.
A.4.4.3.2 Balanced cabling connections and splices for CPs based on Ethernet
Not applicable.
A.4.4.3.3 Copper cabling connections and splices for CPs not based on Ethernet
A.4.4.3.3.1 Common description
Addition:
Refer to manufacturers data sheet regarding the number of allowed connections.
The number of allowed connections, adaptors and splices relates to the maximum channel
attenuation.
A.4.4.3.3.2 Connections minimum distance
A.4.4.3.3.3 Copper cabling splices
A.4.4.3.3.4 Copper cabling bulkhead connections
A.4.4.3.3.5 Copper cabling J-J adaptors
A.4.4.3.4 Optical fibre cabling connections and splices for CPs based on Ethernet
Not applicable.
– 24 – 61784-5-6 © IEC:2010(E)
A.4.4.3.5 Optical fibre cabling connections and splices for CPs not based on
Ethernet
Addition:
The number of allowed connections and splices relates to the maximum channel attenuation.
A.4.4.3.6 Specific requirements for generic cabling in accordance with
ISO/IEC 24702
Not applicable.
A.4.4.4 Terminators
Not applicable.
A.4.4.5 Device location and connection
A.4.4.5.1 Common description
A.4.4.5.2 Specific requirements for CPs
Not applicable.
A.4.4.5.3 Specific requirements for wireless installation
A.4.4.5.4 Specific requirements for generic cabling in accordance with
ISO/IEC 24702
Not applicable.
A.4.4.6 Coding and labelling
A.4.4.6.1 Common description
A.4.4.6.2 Additional requirements for CPs
A.4.4.6.3 Specific requirements for CPs
Addition:
For balanced cables, the signal wires shall comply with colour codes specified in Table A.9.
Table A.9 – Colour code for balanced cables used by Type 8 networks
Signal Colour code
DO YE
/DO GN
DI GY
/DI PK
COM BN
A.4.4.6.4 Specific requirements for generic cabling in accordance with
ISO/IEC 24702
Not applicable.
61784-5-6 © IEC:2010(E) – 25 –
A.4.4.7 Earthing and bonding of equipment and devices and shielded cabling
A.4.4.7.1 Common description
A.4.4.7.1.1 Basic requirements
Replacement:
Earth potential differences between cabling end points will induce noise in the cabling system.
This is especially true in shielded cabling systems. Controlling earth currents is extremely
important in reducing interference caused by earth offsets. Shield currents shall be mitigated
by using a proper earthing system and or proper shield termination techniques as defined in
this standard and the relevant CPs. If this requirement cannot be met, then alternate media,
such as optical fibre cables, or wireless, shall be considered. UTP cables shall not be used.
A.4.4.7.1.2 Planner tasks
A.4.4.7.1.3 Methods for controlling potential differences in the earth system
A.4.4.7.1.4 Selection of the earthing and bonding systems
A.4.4.7.2 Bonding and earthing of enclosures and pathways
A.4.4.7.2.1 Equalisation and earthing conductor sizing and length
A.4.4.7.2.2 Bonding straps and sizing
A.4.4.7.2.3 Surface preparation and methods
A.4.4.7.2.4 Bonding and earthing
A.4.4.7.3 Earthing methods
A.4.4.7.4 Shield earthing
A.4.4.7.4.1 Non-earthing or parallel RC
Replacement::
A parallel RC circuit is located in the devices. Otherwise a equipotential cable between any
two devices shall be installed according to IEC 61918:2010, 4.4.7.2.1.
A.4.4.7.4.2 Direct
Not applicable.
A.4.4.7.4.3 Derivatives of direct and parallel RC
Not applicable.
A.4.4.7.5 Specific requirements for CPs
Not applicable.
A.4.4.7.6 Specific requirements for generic cabling in accordance with
ISO/IEC 24702
Not applicable.
A.4.4.8 Storage and transportation of cables
A.4.4.9 Routing of cables
– 26 – 61784-5-6 © IEC:2010(E)
A.4.4.10 Separation of circuit
A.4.4.11 Mechanical protection of cabling components
A.4.4.11.1 Common description
A.4.4.11.2 Specific requirements for CPs
A.4.4.11.3 Specific requirements for generic cabling in accordance with
ISO/IEC 24702
A.4.4.12 Installation in special areas
Subclause 4.4.12.3 is not applicable.
A.4.5 Cabling planning documentation
A.4.5.1 Common description
A.4.5.2 Cabling planning documentation for CPs
Addition:
The device documentation shall be observed for additional rules.
A.4.5.3 Network certification documentation
A.4.5.4 Cabling planning documentation for generic cabling in accordance with
ISO/IEC 24702
Not applicable.
A.4.6 V
...