ESS Cable Naming and
Labeling Policy
Karin Rathsman
Scope
The cable naming conven;on applies to all
cables connec;ng device ports.
• By device we refer to equipment defined according to the ICS defini;on of devices.
Mo;va;on
Based on experience from SNS, consistent
naming and labelling of cables are vital
• All responsible workpackage leaders had conflic;ng ideas on how to name cables.
• Worse, some of the mul; ideas lived in parallel leading to inconsistent things in labeling cables as well as
naming conven;on.
• Some insisted on puTng home brewed cable names on cad drawing, leaving a second source on cable names conflic;ng with the global database.
• => Data base populated with 7 fields of aliases of home made conven;ons on how to name cables…
Guidelines
Cables shall be named and labelled
consistently to ease
• Installa;on • Integra;on
• Configura;on
• Troubleshoo;ng
The long term opera;onal phase of the
project is priori;sed.
Cables and Labels
Cable
• Each cable shall be labelled with a name.
Cable Tree
• All cable ends shall be individually numbered.
Cable Bundle
• Each cable in a bundle shall be 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 before cable rou;ng and pulling.
• Labels must not obstruct or fall off during cable rou;ng and pulling.
• Labels shall be placed at a convenient distance from the
end to prevent labels from accidentally being cut off when the end is trimmed
Cable Port Labels
• Ends of cable trees shall be labelled with a cable end number.
• Cable trees shall be delivered to ESS with labelled cable ends.
• Cable end labels must not obstruct or fall off during installa;on.
• Labels shall be placed at a convenient distance from the end to prevent labels from accidentally being cut when the end is trimmed
Cable End Label
Cable
Mapped Device Port Labels
• Each device port shall be uniquely labelled.• A mapped device port label with the connected device port id shall be a_ached between the cable port label and the plug. • The device port labels shall be a_ached at the latest when the
cable is connected.
Device
Device Cable
Device
Mapped Device Port Label Device port label
Cable Label Cable Label Cable end label
Label informa;on
Meaningful, short and human readable
informa;on on cables are required:
• Personnel should not have to refer to electronics systems in every situa;on.
Ques;on:
What informa;on besides iden;fica;on needs to be displayed in cable name?
• Cable class (ethernet, op;cal fiber, etc) • Source and des;na;on.
• Cri;cality (MPS, PPS)
• Safety: Power and voltage level • Noise sensi;vity
• Noise genera;ng • Route
• Bundle
• Path (MPS Path, High power path etc...) • Smoke and flammability classifica;on. • Radia;on resistance classifica;on.
• Length • Weight • Owner
Answer:
The following informa;on needs to be
displayed in the cable name:
• Cable class (Cls) • Discipline (Dis)
• Iden;fica;on code (Id)
(Source and des;na;on can also be
Proposal
Meaningful, short, consistent and human
readable labels requires a naming policy:
• Name cables on the form Cls-‐Dis-‐Id • Name cable ends with a number N
Port Mapping
• Pair device ports and cable ends in a one-‐to-‐one mapping in the cabling database.
Labeling
• Lable the cable with the cable name Cls-‐Dis-‐Id
• Label each cable end with the cable end number N. • Label cable ends with the mapped device port name.
Labels
Device Device Cable Device Cls-Dis-Id Device Port SSSS-BBBB:DDDD-III SSSS-BBBB:DDDD-III:P N Cls-Dis-IdExample: Names
The vertical dipole magnets (DV) in the
third subsection of the dogleg
(DgLg-03) are devices of the Beam
Magnets and Deflector (BMD) discipline
named
• DgLg-‐BMD:DV-‐04
The cable from this dipole to the power supply
(PS)
• DgLg-‐BMD:PS-‐04
is a classified as a high power cable and named
Cable End and Device Port Mapping
Cable Name End No Device Port
PWR-‐PBO-‐1234567 1 DgLg-PBO:PS-04:Out
Example: Labels
Ver;cal Dipole Power Supply Cable HEBT-PBO :PS-03 :Output PWR-PBO-1234567PWR-PBO-1234567 HEBT-BMD:PS-04DV HEBT-BMD:DV-04 HEBT-BMD :PS-04DV :Out 1 2 HEBT-BMD :DV-04 :InFRIB Labels
Cable labeling informa;on shall include:
• Cable number, supplied by the cable database
• Barcode, based on the TBD standard, corresponding to the cable number
• Tray Designa;on, as listed in the first column of Table 6-‐1 • Plain text, giving Fr(om)/To informa;on.
Facility for Rare Isotope Beams FRIB-T10503-SP-000146-R001 Page 4 of 19
FRIB Cable Criteria Issued 24 September 2012
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
Plain text, giving Fr(om)/To information. The “Fr” location is the name of the device, the cable connects to at that end of the cable where the label is applied. The device at the other, far end of the cable shall correspond to the “To” location for this same label. The label at the other end of the cable will be identical except for the “To” and “Fr” device names, which are now exchanged. The device names on the label shall be based on the FRIB naming convention [3].
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
Figure 5-2: Example of a 0.875” width single cable label to go around a large diameter cable
Figure 5-3: Example of 0.875” width cable labels for the two ends of one and the same cable
6 Standardization
6.1 Web Page
A project web page that serves as a mechanism for distributing cabling information to all design team members is located at the FRIB Portal under the “Engineering” Tab. The page contains this document, access to the cabling database spreadsheet, the approved cable listing, and other
helpful information.
6.2 Voltage Ratings
Basically, cable voltage ratings must provide compliance with the National Electric Code (NEC). The guidance given here is intended to help insure compliance.
