1. Circuit endpoints
Identify the two connection points and the applicable circuit or wire references without relying on an informal description.
POINT-TO-POINT CONNECTIONS BUILT TO YOUR DEFINITION
Customer-specific jumper wires and compact point-to-point assemblies built around your drawing, circuit definition, wire and connector requirements, length, identification, and project-specific inspection scope.
Use one controlled requirement set to align engineering, procurement, manufacturing, and quality review before quotation.

A jumper wire assembly is a short, defined electrical connection used to link two points within equipment or an electronic system. Its construction is controlled by the customer-approved circuit, wire, termination, length, orientation, identification, protection, and acceptance requirements.
CLEAR PRODUCT ROLE
Jumper wires can look simple, but a quotation-ready definition still needs more than two endpoints. The supplier must understand the circuit relationship, termination at each end, conductor requirement, finished length, orientation, identification, protection, quantities, and inspection basis.
Cablum manufactures custom wire harnesses and cable assemblies based on customer requirements. Jumper assemblies can be reviewed as customer-specific wire or cable assemblies when the applicable drawing, specification, BOM, or approved reference defines the product.
This page addresses custom OEM assemblies. It does not describe automotive booster cables, off-the-shelf breadboard leads, or a universal stocked connector range.
RFQ INPUTS
Keep the drawing, BOM, connection data, and revision record aligned around the same approved requirement.
Identify the two connection points and the applicable circuit or wire references without relying on an informal description.
State the customer-selected wire specification, size, construction, color, and any applicable project condition.
List the approved terminal, contact, connector, housing, or prepared-end requirement for both ends.
Define the measurement reference, finished length, and customer-approved tolerance rather than leaving the endpoints implicit.
Show terminal direction, connector orientation, cavity position, or exit direction wherever assembly fit depends on it.
Define wire color, labels, markings, or part identification when needed for installation or traceability.
Specify heat shrink, sleeving, routing protection, or other customer-approved protection only where the design requires it.
State the applicable inspection, electrical checks, documentation, quantity, and revision requirements for the project.

CONFIGURATION REVIEW
A jumper assembly may use the same termination on both ends or two different customer-specified interfaces. The BOM and drawing should identify the required components and their relationship to the equipment.
Use when both endpoints share the same approved component or prepared-end definition.
Define each side separately when the jumper links different interfaces.
Provide cavity mapping, sequence, grouping, and identification when several point-to-point connections form one controlled set.
BUYER REVIEW TABLE
| Open question | Information to provide | Why it matters |
|---|---|---|
| What does each end connect to? | Endpoint references, component requirements, and cavity or terminal definition | Prevents incompatible interpretations of the same connection |
| How is length measured? | Named measurement points and the approved finished-length requirement | Aligns drawing review and physical fit |
| Does orientation matter? | Connector view, contact direction, keying, or wire-exit direction where applicable | Reduces installation and assembly ambiguity |
| How is the assembly identified? | Color, label, part number, or grouped-set definition | Supports installation and document control |
| What must be checked? | Customer-approved inspection and electrical-test requirements | Defines quotation and acceptance scope |
PROJECT WORKFLOW
Cablum can review customer drawings, specifications, BOM information, customer-approved requirements, and sample references where applicable.
Confirm the customer-specified wire and component requirements, length definition, orientation, identification, and open decisions.
Wire cutting, stripping, crimping, soldering, labeling, heat shrink, or sleeving can be included where required by the approved design.
Inspection and electrical checks are defined according to customer-approved project requirements. Test records may be provided where their scope is agreed.
Related planning resources include the Wire Harness Drawing Checklist, BOM Requirements, and Connector Selection Requirements.
CABLUM PROJECT SUPPORT
Cablum is a Shenzhen-based custom wire harness and cable assembly manufacturer established in 2012.
Cablum supports customer-specific assemblies, drawing and specification review, and prototype and production support based on project requirements.
Customer-specified wires and connectors can be reviewed for the project. Material availability, component availability, tooling, quantities, and the exact inspection scope are confirmed during quotation rather than assumed.
Need one connector feeding individually identified free wire ends? Review our custom pigtail wire harness assemblies for connector-to-wire configurations, including specified ferrule ends and twisted pairs. Use the approved drawing to distinguish this format from a point-to-point jumper.
Explore broader wire harness and cable assembly products, data and signal cable assemblies, materials and component planning, engineering and prototyping support, or quality testing.
BUYER QUESTIONS
PREPARE ONE CONTROLLED REQUIREMENT SET
Share the drawing, circuit endpoints, component requirements, lengths, quantities, revision status, and project-specific inspection needs.