IEC 61784-5-6:2007

IEC 61784-5-6
Edition 1.0 2007-12
INTERNATIONAL
STANDARD
Industrial communication networks – Profiles –
Part 5-6: Installation of fieldbuses – Installation profiles for CPF 6

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IEC 61784-5-6
Edition 1.0 2007-12
INTERNATIONAL
STANDARD
Industrial communication networks – Profiles –
Part 5-6: Installation of fieldbuses – Installation profiles for CPF 6

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
X
ICS 35.100.05 25.040.40 ISBN 2-8318-9404-2

– 2 – 61784-5-6 © IEC:2007(E)

CONTENTS
FOREWORD.5

INTRODUCTION.7

1 Scope.8

2 Normative references.8

3 Terms, definitions and abbreviated terms.8

4 CPF 6: Overview of installation profiles .8

5 Installation profile conventions .8

6 Conformance to installation profiles .10
Annex A (Normative) CPF 6 Type 8 network specific installation profile .11
A.1 Installation profile scope .11
A.2 Normative references .11
A.3 Installation profile terms, definitions, and abbreviated terms.11
A.3.1 Terms and definitions .11
A.3.2 Abbreviated terms.12
A.3.3 Conventions for installation profiles.12
A.4 Installation planning.13
A.4.1 Introduction .13
A.4.2 Planning requirements .13
A.4.3 Network capabilities.14
A.4.4 Selection and use of cabling components.19
A.4.5 Cabling planning documentation.26
A.4.6 Verification of cabling planning specification.26
A.5 Installation implementation .26
A.5.1 General requirements .26
A.5.2 Cable installation .26
A.5.3 Connector installation .28
A.5.4 Terminator installation .30
A.5.5 Device installation.30
A.5.6 Coding and labeling .30
A.5.7 Earthing and bonding of equipment and devices and shield cabling .30
A.5.8 As-implemented cabling documentation .30
A.6 Installation verification and installation acceptance test .31

A.6.1 Introduction .31
A.6.2 Installation verification .31
A.6.3 Installation acceptance test.32
A.7 Installation administration .32
A.8 Installation maintenance and installation Troubleshooting.33
Annex B (Normative) CP 6/2 Ethernet network specific installation profile .34
B.1 Installation profile scope .34
B.2 Normative references .34
B.3 Installation profile terms, definitions, and abbreviated terms.34
B.3.1 Terms and definitions .34
B.3.2 Abbreviated terms.34
B.3.3 Conventions for installation profiles.34
B.4 Installation planning.35
B.4.1 Introduction .35

61784-5-6 © IEC:2007(E) – 3 –

B.4.2 Planning requirements .35

B.4.3 Network capabilities.36

B.4.4 Selection and use of cabling components.39

B.4.5 Cabling planning documentation.45

B.4.6 Verification of cabling planning specification.45

B.5 Installation implementation .45

B.5.1 General requirements .45

B.5.2 Cable installation .45

B.5.3 Connector installation .47

B.5.4 Terminator installation .48

B.5.5 Device installation.48
B.5.6 Coding and labeling .48
B.5.7 Earthing and bonding of equipment and devices and shield cabling .49
B.5.8 As-implemented cabling documentation .49
B.6 Installation verification and installation acceptance test .49
B.6.1 Introduction .49
B.6.2 Installation verification .49
B.6.3 Installation acceptance test.49
B.7 Installation administration .49
B.8 Installation maintenance and installation Troubleshooting.49
Bibliography .50

Table A.1 – Basic network characteristics for balanced cabling not based on Ethernet .17
Table A.2 - Network characteristics for optical fibre cabling .18
Table A.3 – Information relevant to balanced cable: fixed cables .19
Table A.4 – Information relevant to balanced cable: cords .20
Table A.5 – Remote bus fibre optic cable length .22
Table A.6 – Connectors for balanced cabling CPs not based on Ethernet.23
Table A.7 – Optical fibre connecting hardware.23
Table A.8 – Colour code for balanced cables used by Type 8 networks.24
Table A.9 – Parameters for balanced cables.27
Table A.10 – Parameters for silica optical fibre cables .27
Table A.11 – Parameters for POF optical fibre cables.27

Table A.12 – Parameters for hard cladded silica optical fibre cables .28
Table A.13 – 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 .38
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
Table B.6 – Connectors for balanced cabling CPs based on Ethernet .42
Table B.7 – Optical fibre connecting hardware.42
Table B.8 – Dimensions of the sealed SC-RJ free connector .43
Table B.9 – Dimensions of the sealed SC-RJ fixed adaptor.44
Table B.10 – Typical parameters for copper cables.46

– 4 – 61784-5-6 © IEC:2007(E)

Table B.11 – Typical parameters for Silica fibre cables .46

Table B.12 – POF fibre cables.46

Table B.13 – Hard cladded silica fibre cables .47

Table B.14 – Connector pin assignment .48

Figure 1 – Standards relationships .7

Figure A.1 – Type 8 network structure example .15

Figure A.2 – Example of a Type 8 network configuration.16

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 – Sealed SC-RJ free connector .43
Figure B.2 – Sealed SC-RJ fixed adaptor.44
Figure B.3 – Terminal connector at the device .48
Figure B.4 – Pin numbering .48

61784-5-6 © IEC:2007(E) – 5 –

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 interna-
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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 standard is to be used in conjunction with IEC 61918:2007.
The text of this standard is based on the following documents:
FDIS Report on voting
65C/471/FDIS 65C/482/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.

– 6 – 61784-5-6 © IEC:2007(E)

A list of all parts of the IEC 61784-5 series, 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

maintenance result 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.
61784-5-6 © IEC:2007(E) – 7 –

INTRODUCTION
This International Standard is one of a series produced to facilitate the use of communication

networks in industrial control systems.

IEC 61918:2007 (Ed. 1.0) provides the common requirements for the installation of communi-

cation 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 (e.g. IEC 61784-5-6 for
CPF 6), allows readers to work with standards of a convenient size.

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– 8 – 61784-5-6 © IEC:2007(E)

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 the media specified in CPF 6
(INTERBUS) .
The installation profiles are specified in the annexes. These annexes are read in conjunction
with IEC 61918:2007.
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 61918:2007, Industrial communication networks – Installation of communication networks
in industrial premises
The normative references of IEC 61918:2007, Clause 2, apply. For profile specific normative
references see A.2, and B.2.
3 Terms, definitions and abbreviated terms
For the purpose of this document, the terms, definitions and abbreviated terms of
IEC 61918:2007, Clause 3, apply. For profile specific terms, definitions and abbreviated terms
see A.3 and B.3 .
4 CPF 6: Overview of installation profiles
CPF 6 consists of seven CPs (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 61918:2007 main clauses and subclauses.
The annex clauses and subclauses of this standard supplement, modify, or replace the
respective clauses and subclauses in IEC 61918:2007.
___________
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.
61784-5-6 © IEC:2007(E) – 9 –

Where there is no corresponding subclause of IEC 61918:2007 in the normative annexes in

this standard, the subclause of IEC 61918:2007 applies without modification.

The annex heading letter represents the installation profile assigned in Clause 4 The annex

heading number shall represent the corresponding numbering of IEC 61918:2007.

EXAMPLE  “Annex A.4.4” in IEC 61784-5-6 means that the installation profile for the Type 8 network profiles
specifies the Subclause 4.4 of IEC 61918:2007.

All main clauses of IEC 61918:2007 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 is “Not applicable””, then (sub)clause x becomes valid
as declared and all the other corresponding IEC 61918 (sub)clauses apply.

– 10 – 61784-5-6 © IEC:2007(E)

6 Conformance to installation profiles

Each installation profile within this standard includes part of IEC 61918:2007. It may also

include defined additional specifications.

A statement of compliance to the installation profile specified in Annex A shall be stated as

Compliance to IEC 61784-5-6:2007 for CPF 6 Type 8 Network

where the name within the angle brackets < > is optional and the angle brackets are not to be

included.
NOTE  The name may be the name of the profile, e.g. INTERBUS.
If the name is a trade name then the permission of the trade name holder shall be required.
A statement of compliance to the installation profile specified in Annex B shall be stated as
Compliance to IEC 61784-5-6:2007 for CP 6/2 Ethernet Network
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).

___________
In accordance with ISO/IEC Directives.

61784-5-6 © IEC:2007(E) – 11 –

Annex A
(Normative)
CPF 6 Type 8 network specific installation profile

A.1 Installation profile scope

Addition:
This annex specifies the installation profile for 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 (Ed. 2.0), 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
NOTE  EN 50377-6-1 is under consideration as IEC 61754-24.
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 via a bus coupler
A.3.1.3
local bus device
device that operates as a slave on a local bus

– 12 – 61784-5-6 © IEC:2007(E)

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
POF Plastic Optical Fibre
SELV Safety Extra Low Voltage
A.3.3 Conventions for installation profiles
Not applicable.
61784-5-6 © IEC:2007(E) – 13 –

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 24702
Not applicable.
A.4.2 Planning requirements
A.4.2.1 Safety
A.4.2.1.1 General
A.4.2.1.2 Electrical 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 is also
possible. 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 (OFCS)
A.4.2.2 Security
A.4.2.3 Environmental considerations and EMC
A.4.2.3.1 Description methodology
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.

– 14 – 61784-5-6 © IEC:2007(E)

A.4.2.3.2 Use of the described environment to produce a bill of material

Addition:
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 require-

ments. 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 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
Modification:
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 is possible according to A.4.4.1.5
A.4.3.1.5 Specific physical topology 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.

61784-5-6 © IEC:2007(E) – 15 –

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

w2 Slave
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.

– 16 – 61784-5-6 © IEC:2007(E)

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 24702
Not applicable.
Remote bus (max. 12,8 km)
Bus segment (max. 400 m)
61784-5-6 © IEC:2007(E) – 17 –

A.4.3.2 Network characteristics

A.4.3.2.1 General
A.4.3.2.2 Network characteristics for balanced cabling not based on Ethernet

Replacement:
Table A.1 provides values based on the template given in IEC 61918:2007, Table 1.

Table A.1 – Basic network characteristics for balanced cabling not based on Ethernet

Characteristic Type 8 network
Basic network technology Type 8
Length / transmission speed
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
Max Capacity
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 61918:2007, Table 3.

– 18 – 61784-5-6 © IEC:2007(E)

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
Mode field diameter (µm) 9 … 10

Cladding diameter (µm) 125
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 x km) 600
at λ
Alternative description
Core diameter (µm) 50
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 x km) 600
at λ
Alternative description
Core diameter (µm) 62,5
Cladding diameter (µm) 125
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 x km) ≥ 10 MHz x 100
at λ m
Alternative description
Core diameter (µm) 980
Cladding diameter (µm) 1 000
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 x km) ≥ 17 MHz x km
at λ
Alternative description
Core diameter (µm) 200
Cladding diameter (µm) 230
NA 0,37
Minimum length (m) 0
Maximum length (m) 400
61784-5-6 © IEC:2007(E) – 19 –

A.4.3.2.5 Specific network characteristics

Not applicable.
A.4.3.2.6 Specific requirements for generic cabling in accordance with ISO 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
Replacement:
Table A.3 and Table A.4 provide values based on the template given in IEC 61918:2007
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, 3.3.2
DCR of conductors
max. 9,6 Ω / 100 m
Test method IEC 60189-1, 5.1
DCR of shield Not defined
Number of conductors 3 x 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 2
min. 0,20 mm
Dielectric strength
- Conductor/conductor 1 000 V , 1 min
rms
- Conductor/shield
1 000 V , 1 min
rms
Test method IEC 60189-1, 5.2
Insulation resistance
Min. 150 MΩ for a cable of 1 km in length
(after dielectric strength test) Test method IEC 60189-1, 5.3

– 20 – 61784-5-6 © IEC:2007(E)

Characteristic Type 8 network
Maximum transfer impedance
- at 30 MHz 250 mΩ/m
Test method IEC 60096-1
Mutual capacitance (at 800 Hz) Max. 60 nF for a cable of 1 km in length

Test method IEC 60189-1, 5.4
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, 3.3.4
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, 3.3.2

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, 3.3.2

DCR of conductors
max. 9,6 Ω / 100 m
Test method IEC 60189-1, 5.1
DCR of shield Not defined
Number of conductors 3 x 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

61784-5-6 © IEC:2007(E) – 21 –

Characteristic Type 8 network
Agency ratings Cable types with different ratings available

Cross section 2
min. 0,20 mm
Dielectric strength
- Conductor/conductor 1 000 V , 1 min

rms
- Conductor/shield
1 000 V , 1 min
rms
Test method IEC 60189-1, 5.2
Insulation resistance
Min. 150 MΩ for a cable of 1 km in length

(after dielectric strength test) Test method IEC 60189-1, 5.3
Maximum transfer impedance
- at 30 MHz
250 mΩ/m
Test method IEC 60096-1
Mutual capacitance (at 800 Hz) Max 60 nF for a cable of 1 km in length
Test method IEC 60189-1, 5.4
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, 3.3.4
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, 3.3.2

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
A.4.4.1.3 Cable requirements for wireless installation
A.4.4.1.4 Optical fibre cables
Addition:
The cable shall be according to IEC 61158-2:2007, 27.7.2

– 22 – 61784-5-6 © IEC:2007(E)

Polymer optical fibre cable shall be detailed according to IEC 61158-2:2007, 28.6.2

Polymer cladded optical fibre cable shall be detailed according to IEC 61158-2:2007, 28.6.3

A.4.4.1.5 Special purpose copper and optical fibre cables

Addition:
The specification from additional mechanical data depends on the application. The electrical or

Table A.5).
optical data apply also for specific cabling (see

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 iare used.

A.4.4.1.6 Specific cable 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 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 61918:2007, Table 8.

61784-5-6 © IEC:2007(E) – 23 –

Table A.6 – Connectors for balanced cabling CPs not based on Ethernet

IEC
60807-2 IEC 60947-5-2
EN ANSI/NFPA
or or Others
122120 T3.5.29 R1-2003
IEC IEC 61076-2-101
60807-3
M12-5 M12-5 M12-n 7/
...