What is the difference between straight-thru and cross pinning on a modular cable or coupler?
A B A B .900 + .675 Crossed Couplers with Crossed Output Straight Couplers with Straight Output Crossed Crossed Coupler A A A A Crossed A A Crossed Straight Coupler A A A A Crossed B B B B B B B B B B Straight A A B B Crossed Coupler Straight A A B B A B TYPE A TYPE B Plug A B Straight A A B B Straight Coupler Jack A A B B Plug 1.142 Straight A B A B ECF504B-UAB Rear View ECF504-UABS Rear View ECJ504-UA Rear View ECF504-94MS (Front view) TYPE A TYPE A ECF504B-UAB Front View ECF504-UABS Front View Color: Black or Ivory Gold Plating: 30 microinches Flammability Rating: 94V-0 TYPE B TYPE B RECOMMENDED PANEL HOLES Drill and Tap Holes for 4-40 Screw + .900 + .675 ECF504-94MS (Rear view) PR175F504 PR35F504 PR175F504-UAB PR35F504-UAB 1.142 PR35F504-94MS 2008 Master Catalog 1.0 Free technical support Call toll free at 1-800-343-1455 if you have questions about your application.
A. Straight-thru means each contact is pinned to its respective contact (1-1, 2-2, 3-3, etc.) Crossed pinning means contacts are pinned through to the opposite contact (Example: an 8 position RJ45: 1-8, 2-7, 3-6, etc.). When using a coupler between two patch cords it is important to choose the correct type. If the desired pinning from end to end is crossed, then the coupler and cables must be crossed. For straight pinning, all the couplers and cables must be pinned straight-thru.
Straight-thru means each contact is straight PINNED to its respective contact (1-1, 2-2, 3-3, etc.). Crossed pinning means contacts are PINNED through to the opposite contact. Example: On an 8 position RJ45: 1-8, 2-7, 3-6, etc. When using a coupler between two patch cords it is important to choose the correct type. As the diagrams illustrate, …
