IEC 61156-4-1:2009 pdf free download

IEC 61156-4-1:2009 pdf free download Multicore and symmetrical pair/quad cables for digital communications – Part 4-1: Riser cables – Blank detail specification
1Scope
This blank detail specification relates to multicore and symmetrical pair/quad cables for digitalcommunications in riser application.
This blank detail specification determines the layout and style for detail specifications
describing multicore and symmetrical pair(s)/quad(s) cables for digital communication in riserwiring. Detail specifications based on the blank detail specification may be prepared by anational standards organization, a manufacturer or a user.
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 editionof the referenced document (including any amendments) applies.
IEC 61156-1:2002 1, Multicore and symmetrical pairlquad cables for digital communications -Part 1 : Generic specification
IEC 61156-4, Multicore and symmetrical pair/lquad cables for digital communications – Part 4:Riser cables – Sectional specification
ISOIEC 11801,Information technology – Generic cabling for customer premises3Guidance for preparation of detail specifications
lt is necessary to keep the transmission characteristics indicated in the relevant sectionalspecification for the category number(3 or 5) and the characteristic impedance.
The detail specification shall be written in accordance with the layout of the blank detailspecification which forms part of this standard.
NOTE When a characteristic does not apply, then NA (for not applicable) may be entered in the appropriatespace.
When a characteristic applies but a specific value is not considered necessary, then NS (for not specified) shouldbe entered in the appropriate space.
The numbers shown in brackets on this and the following pages correspond to the followingitems of required information, which shall be entered in the spaces provided.
[1]Name and address of the organization that has prepared the document.
[2]IEC document number, issue number and date of issue.