ESS Cable Naming
and Labeling Policy
Karin Rathsman
Wednesday, May 22, 2013
Introduction
Scope
The cable naming convention applies to all
cables connecting device ports.
• By device we refer to equipment
defined according to the ICS definition
of devices.
• I.e. equipment with a device name
SSSS-BBBB:DDDD-III
Motivation
Based on experience from SNS, consistent naming
and labeling of cables are vital
• All responsible workpackage leaders had
conflicting ideas on how to name cables.
• Worse, some of the multi ideas lived in parallel
leading to inconsistent things in labeling
cables as well as naming convention.
• Some insisted on putting home brewed cable
names on cad drawing, leaving a second
source on cable names conflicting with the
global database.
• => Data base populated with 7 fields of aliases
of home made conventions on how to name
cables…
Guidelines
Cables shall be named and labelled
consistently to ease
• Installation
• Integration
• Configuration
• Troubleshooting
The long term operational phase of the
project is prioritized.
Labelling
Cables and Labels
Cable
• Each cable shall be
labeled with a name.
Cable Tree
• All cable ends (referred
to as ports) of a cable
with more than two
ends shall be
individually numbered.
Cable Bundle
• Each cable in a bundle
shall be named and
labelled individually.
Cable Labels
• Each cable shall be labeled on both ends.
• Long cables should have several labels at
convenient intervals.
• Cable shall be labelled at the latest during cable
pulling.
• Labels must not obstruct or fall off during
installation.
• Labels shall be placed at a convenient distance
from the end to prevent labels from accidentally
being cut when the end is trimmed
Cable Label
Cable Label
Cable Port Labels
• Ports of cable trees shall be labelled with a port number.
• Cable trees shall be delivered to ESS with labelled cable
ports.
• Cable port labels must not obstruct or fall off during
installation.
• Labels shall be placed at a convenient distance from the
end to prevent labels from accidentally being cut when
the end is trimmed
Cable Port Label
Cable
Cable Label
Cable Label
Mapped Device Port Labels
• Each device port shall be uniquely labelled.
• A mapped device port label with the connected
device port id shall be attached between the
cable port label and the plug.
• The device port labels shall be attached at the
latest when the cable is connected.
Device port label
Device
Mapped Device Port Label
Cable port label
Device
Cable
Device
Cable Label
Cable Label
Information on Labels
Label information
Meaningful, short and human readable
information on cables are required:
• Personnel should not have to refer to
electronics systems in every situation.
- Scenario: Troubleshooting during night shifts.
• To mitigate the potential risk of
sabotage the cable database might not
be accessible from e.g. mobile devices.
- Scenario: Ex-employee rewires cables on a
database level and thereby bypasses the MPS
Question:
What information besides identification needs to be displayed?
• Cable type (ethernet, optical fiber, etc)
• Source and destination.
• Criticality (MPS, TSS, PPS)
• Safety: Power and voltage level
• Noise sensitivity
• Noise generating
• Route
• Path (MPS Path, High power path etc...)
• Smoke and flammability classification.
• Radiation resistance classification.
• Length
• Weight
• Owner
Cable Names
Proposal
Meaningful, short, consistent and human
readable labels requires a naming policy:
• Name cables the same way as devices
according to the ESS naming convention
• Name cable ports the same way as device
ports
Port Mapping
• Pair ports in a one-to-one mapping in BLED.
Labeling
• Label cable port with the cable port number.
• Label cable ports with the mapped device
port name.
Device and Port Names
SSSS-BBBB:DDDD-III:PPPP
Device/Cable Name
Device/Cable Port Name/Number
SSSS
BBBB
DDDD
III
PPPP
System Convention Name
Subsystem Convention Name
Device Identifier
Device Quantifier
Port Identifier
Labels
Device Name
Device Port Name
Device
Cable Port Number
Cable Name
Cable
Device
Device
Benefits
• People are already familiar with the naming
convention
• Naming tools and underlying database
structure are already under development.
• Port mapping is simplified if we use the same
convention for devices and cables
• The same tools can be deployed for other
links, for example piping.
Categorization of cables
Generic Device Types
Two cables with different generic device
identifiers follow different paths
• Example: MPS, PPS, TSS cables are on
separate trays.
• Implies that Criticality and the path will
be visible on labels.
Generic device types
The following generic device types are proposed
(Preliminary)
cTSS
cPPS
cMPS
cbVP
cbV
cbP
cbS
cbNG
Cb
Target Safety System Cable
Personnel Protection System Cable
Machine Protection System Cable
High voltage (>1 kV DC/1.5kV AC), high power cable
High voltage (>1 kV DC/1.5kV AC), low power cable.
Example: for BLMs and other detector for bias.
High power, low voltage ( < 1kV DC/1.5 kV AC) cable
Sensitive signal cable
Noise generating cable (like motor drive)
Other cables
Specific Device Type
Cables shall be selected from an approved
list of cables.
• Use the specific device type list in the
naming convention tool as a list of
approved cables to select from.
• Example of specific device types are
Ethernet cables, optical fiber, etc.
Example
Example: Names
The vertical dipole magnets (DV) in the third
subsection of high Energy beam transport to
target section (HEBT-03) are devices of the
proton beam optics (PBO) discipline named
HEBT-PBO:DV-03a
HEBT-PBO:DV-03b
The cable from this dipole to the power supply (PS)
HEBT-PBO:PS-03
is a classified as a high power cable and named
HEBT-PBO:CbP-03PS2DV
Remarks
Not decided if cable should be sorted
under separate discipline Integration
(Int)
The quantifier should indicate source and
destination.
Long cable names should be avoided for
practical reasons but is not an issue since
there are no process variables associated
with cable name.
Port Name Mapping
Device Port Name
Cable Port Name
HEBT-PBO:PS-03:Output HEBT-PBO:CbP-03ps2dv:1
HEBT-PBO:DV-03a:Input HEBT-PBO:CbP-03ps2dv:2
HEBT-PBO:DV-03b:Input HEBT-PBO:CbP-03ps2dv:3
Example: Labels
HE
BT
-P
BO
:P
S03
:O
ut
pu
t
HEH
BETB
-TPBPOB
HEBT-PBO:DV-03a
:OD:
VD-V
0-3
a:
In
pu
t
HEBT-PBO:PS-03
2
Vertical Dipole
1
Power Supply
Cable
3
HEBT-PBO:CbP-DV2PS
Vertical Dipole
tt
u
u
p
p
n
n
I
::I
b
b
HEBT-PBO:DV-03b
33
0
V
VD:
D
:O
B
O
BP
P
-T
B
T
E
B
HEH
Comparison
SNS Labels
FRIB Labels
Facility for Rare Isotope Beams
FRIB Cable Criteria
FRIB-T10503-SP-000146-R001 Page 4 of 19
Issued 24 September 2012
Cable labeling information shall include:
 Cable number, supplied by the cable database
• Cable
number,
supplied
by the cable
database
 Barcode,
based on the
TBD standard, corresponding
to the cable
number
 The Tray Designation, as listed in the first column of Table 6-1
• Barcode,
based
on
the
TBD
standard,
 Plain text, giving Fr(om)/To information. The “Fr” location is the name of the device, corresponding
the
cable
the cable connects toto
at that
end of
the cablenumber
where the label is applied. The device
at the other, far end of the cable shall correspond to the “To” location for this same • Traylabel. Designation,
as
first
column
The label at the other end listed
of the cable in
will the
be identical except for the “To” and “Fr” device names, which are now exchanged. The device names on the label shall be
of Table
6-1
based on the FRIB naming convention [3].
•
Plain
text,
giving
Fr(om)/To
information.
Examples of label are shown in figures 5-1 to 5-3.
Figure 5-1: Example of 0.656” width cable labels for the two ends of one and the same cable
Alternative to barcodes...
Wanted
Mobile Devices
Application on mobile devices to look up
information given a name
SSSS-BBBB:DDDD-III:PPPP
• Input methods
-
Type
Select
Scan
Talk
• Output
- A portal with links to further information.
Eugene Tanke (FRIB)
Thomas Shea (experience from SNS)
Annika Nordt (experience from Cern)
Leandro Fernandes (experience from Cern)
Jure Malovrh (CosyLab)
Thomas Gahl (experience from PSI)
Acknowledgement