--- title: Parallel Test Systems for ICT, ISP, and Functional Test | CheckSum description: CheckSum delivers parallel test systems for ICT, in-system programming, and functional test, helping electronics manufacturers improve throughput, increase coverage, and reduce scrap risk. image: https://www.checksum.com/hubfs/FI%20Homepage.png --- [Skip to the main content.](https://www.checksum.com#main-content) [![CheckSum Logo + Checkmark White Transp](https://www.checksum.com/hs-fs/hubfs/CheckSum%20Logo%20+%20Checkmark%20White%20Transp.png?width=1920&height=212&name=CheckSum%20Logo%20+%20Checkmark%20White%20Transp.png "CheckSum Logo + Checkmark White Transp")](https://checksum.com?hsLang=en) [![](https://www.checksum.com/hs-fs/hubfs/CheckSum%20with%20Check%20mark%20-Black%20-662x111px.png?width=588&height=164&name=CheckSum%20with%20Check%20mark%20-Black%20-662x111px.png)](https://checksum.com?hsLang=en) - [Solutions](https://www.checksum.com) - [ILS-X2 Dual Panel Automated Test System](https://www.checksum.com/ils-x2-dual-panel-automated-test-system) - [12KN Off-Line Test System](https://www.checksum.com/12kn-off-line-test-system) - [ICT - In Circuit Test](https://www.checksum.com/in-circuit-test-systems) - [ISP - MultiWriter™](https://www.checksum.com/in-system-programming) - [PFT - Parallel Functional Test](https://www.checksum.com/parallel-functional-test) - [Fixturing Solutions](https://www.checksum.com/fixturing-solutions) - [The Parallel Advantage](https://www.checksum.com/parallel-test-advantage) - [Resources](https://www.checksum.com) - [Software Updates](https://www.checksum.com/software-updates) - [Terms and Conditions](https://www.checksum.com/terms-and-conditions) - [Privacy Policy](https://www.checksum.com/privacy-policy) - [End User License Agreement](https://www.checksum.com/end-user-license-agreement) - [Contact Us](https://www.checksum.com) - [Contact 1-Call™ Support](https://www.checksum.com/contact-1-call-support) - [Contact Sales](https://www.checksum.com/contact-sales) - [Our Company](https://www.checksum.com/about-checksum) - 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[Solutions](https://www.checksum.com) - [ILS-X2 Dual Panel Automated Test System](https://www.checksum.com/ils-x2-dual-panel-automated-test-system) - [12KN Off-Line Test System](https://www.checksum.com/12kn-off-line-test-system) - [ICT - In Circuit Test](https://www.checksum.com/in-circuit-test-systems) - [ISP - MultiWriter™](https://www.checksum.com/in-system-programming) - [PFT - Parallel Functional Test](https://www.checksum.com/parallel-functional-test) - [Fixturing Solutions](https://www.checksum.com/fixturing-solutions) - [The Parallel Advantage](https://www.checksum.com/parallel-test-advantage) - [Resources](https://www.checksum.com) - [Software Updates](https://www.checksum.com/software-updates) - [Terms and Conditions](https://www.checksum.com/terms-and-conditions) - [Privacy Policy](https://www.checksum.com/privacy-policy) - [End User License Agreement](https://www.checksum.com/end-user-license-agreement) - [Contact Us](https://www.checksum.com) - [Contact 1-Call™ Support](https://www.checksum.com/contact-1-call-support) - [Contact Sales](https://www.checksum.com/contact-sales) - [Our Company](https://www.checksum.com/about-checksum) - [About Us](https://www.checksum.com/about-checksum) - [News and Trade Events](https://www.checksum.com/news-and-events) - [Careers](https://www.checksum.com/careers) [Contact Us](https://www.checksum.com/contact-sales?hsLang=en) # Parallel Test Changes # Production Economics   ### Improve efficiency, increase coverage, and reduce scrap risk ### with Parallel Test™ systems for ICT, ISP, and functional test.             [Request a Free Project Analysis](https://www.checksum.com/checksum-project-analysis-request?hsLang=en) ![parallel at every step™](https://www.checksum.com/hs-fs/hubfs/Parallel%20at%20Every%20Step%20Banner%20Large.png?width=1920&height=151&name=Parallel%20at%20Every%20Step%20Banner%20Large.png) ### Parallel Test Changes More Than the Test Cell   CheckSum helps electronics manufacturers improve PCB test throughput with parallel test systems for In-Circuit Test, In-System Programming, and Functional Test. When test cannot keep pace with SMT, the impact goes beyond the test cell.  **Slower feedback can increase rework, scrap, rescheduling, lost capacity, and overall factory cost.**  CheckSum’s Parallel Test solutions help manufacturers keep pace with the SMT process, reducing the broader cost and risk of delayed fault detection. Keeping pace with the line gives manufacturers faster process feedback and a more efficient test strategy. The result is better quality, lower overall test cost, and less floor space required to support production.     [Learn More About Parallel Test](https://checksum-llc-47306464.hubspotpagebuilder.net/the-parallel-advantage?hsLang=en) ![CheckSum parallel test systems for PCB manufacturing](https://www.checksum.com/hs-fs/hubfs/PCB%20Manufacturing%20B.png?width=800&height=523&name=PCB%20Manufacturing%20B.png) ![ICT Icon B](https://www.checksum.com/hs-fs/hubfs/ICT%20Icon%20B.png?width=800&height=800&name=ICT%20Icon%20B.png)   - **Multi-Core:** **1 / 2 / 4** boards in parallel per cycle. - **High-speed:** solid-state relays for fastest execution. - **Full coverage:** analog + digital + powered-on **(advanced tests)**. Faster test drives more value, enabling ISP + PFT in one test cell. [![\Learn More\](https://hubspot-no-cache-na2-prod.s3.amazonaws.com/cta/default/47306464/interactive-335494595305.png)](https://www.checksum.com/hs/cta/wi/redirect?encryptedPayload=AVxigLKKeZnqaQzQWGnwyEks3PU01ILeNQL33idzpwLo0L2r7c5m7%2Fy5u5MqtgfCvAZx%2FyaSbCq%2Bhzft6pQVJ%2Bbaijl3mMZvVYopRQKncGnodif3gM%2BMez5bSmZ1PyfL0nSyg1BuatEbwV7dI2FDdtApJT2lHrISjxb%2BnLsI%2FjB0RBXilWvdqeJY9lIBGjBd5VCIXS9Uens2wQrH3Wm90%2FtZGqs%3D&webInteractiveContentId=335494595305&portalId=47306464&hsLang=en) ![MultiWriter Icon](https://www.checksum.com/hs-fs/hubfs/MultiWriter%20Icon.png?width=800&height=800&name=MultiWriter%20Icon.png)   - **High-speed ISP:** programs at the speed of the device. - **Easy-to-use software:** job integrity, process control, and reporting. - **Security:** encryption + serialization for advanced cybersecurity. Turnkey and production-ready--engineered to integrate seamlessly with **ICT + PFT** in one test cell. [![Learn More](https://hubspot-no-cache-na2-prod.s3.amazonaws.com/cta/default/47306464/interactive-335535445691.png)](https://www.checksum.com/hs/cta/wi/redirect?encryptedPayload=AVxigLJYxUu6riGoRXJagkYkU9aJ0M9Ji3qNRIaaXUOdffEwKe9zc0I4dB%2F1MsWc584PjPm9lhtL9SBOEFDuDdEmv36CN051HLm4iHv06v6ogPXD7FgGi2EPWIJFpXIkJis5hhB%2FNaUUw7IsJOtc1RTSBV1EsZ%2B9Dy7zt3PQBsi98Wo07oQT%2ByhNhSTVWqPwf8U8By1E1GE%2BteFEKamvqP04W7%2Bk0vAK8fMqjI7NLAZWahkm2uZkfsoq7s0A97dLT0bepA%3D%3D&webInteractiveContentId=335535445691&portalId=47306464&hsLang=en)   ![PFT Icon](https://www.checksum.com/hs-fs/hubfs/PFT%20Icon.png?width=800&height=800&name=PFT%20Icon.png)   - **Parallel panel-level FT:** test the entire panel in parallel — **5–10× faster**. - **Project-by-project:** designed to your unique application and test spec. - **Scalable + modular:** seamless integration with CheckSum’s test software. High-speed panel-level functional testing enables more coverage early, reducing **EOL** load and scrap risk. [![Learn More](https://hubspot-no-cache-na2-prod.s3.amazonaws.com/cta/default/47306464/interactive-335494709992.png)](https://www.checksum.com/hs/cta/wi/redirect?encryptedPayload=AVxigLJfKAJ6C8yWwsBHcgcW6Yxk9bYDZeT9YiNEnMOBzySBvjiZ2Jud%2FxOGx%2BxuHKwz%2Fi3LCWOm0Yzoy0Pzx77%2BwFdrTvBqX9sXACdI%2F5Ni3nOStd87i3y4vjTVqdNdRJGjpAoEaNRwm%2B3XsQTFRQ0waDcJMHYkIeoC96mag%2Fs1%2Fvl81w1sqVo7i51oHZkx6410RzwrXtb46piZgaKoJLWUFUmjf8bpws9KrJIM9%2FC3NOvz94xQ%2FCEu&webInteractiveContentId=335494709992&portalId=47306464&hsLang=en) ![Test Systems Icon ILS-X2](https://www.checksum.com/hs-fs/hubfs/Test%20Systems%20Icon%20ILS-X2.png?width=800&height=800&name=Test%20Systems%20Icon%20ILS-X2.png)   - **Dual-panel automation:** high-speed, fully automated test handling with two stop positions. - **Dual-panel flexibility:** run **single**, **dual-panel parallel**, or **dual-panel sequential** test flows. - **One platform for Parallel Test:** supports CheckSum’s **ICT + MultiWriter + PFT**. Unique dual-panel handling doubles throughput, dramatically reducing total cost of test while enabling **enhanced test coverage earlier** in the process. [![Learn More](https://hubspot-no-cache-na2-prod.s3.amazonaws.com/cta/default/47306464/interactive-340728736493.png)](https://www.checksum.com/hs/cta/wi/redirect?encryptedPayload=AVxigLLAWwSmB3Sk7Fung2K8DMcQIavMZgOlMPYgQVZFkU1OkgKpfPXcI8xbh9o52XUt3f2uFLfupy00s2EwxulafcZmYT8jzYAR6vYOHT5kgnL5kPjlCVuttVNNf4lLPz9RhzzcNUDMXVQAihLQjBtNqGmO%2Br2XwBdiaDtbYq2OlgzZV5q6wXtsoaHf%2FItiM%2B62x%2BTR4o6OesjHRLx8SQUHKOO0QYY%3D&webInteractiveContentId=340728736493&portalId=47306464&hsLang=en) ![CheckSum ILS-X2 dual-panel automated parallel PCBA test system](https://www.checksum.com/hs-fs/hubfs/ILS-X2%20Conveyors%20R34%20Transp%201080x1080.png?width=1080&height=1031&name=ILS-X2%20Conveyors%20R34%20Transp%201080x1080.png) ### Automated Parallel Test That Keeps Pace With SMT   **The ILS-X2 Dual-Panel Automated Test System** keeps test synchronized with modern SMT output by **combining CheckSum’s Parallel ICT, programming, and Functional Test** **technologies** in one high-throughput platform. - **Test Two Panels at Once --** Dual-panel handling doubles throughput in a single fixture, reducing cycle time and increasing test capacity without adding additional test cells. - **Combine ICT, Programming, and Functional Test --** Run CheckSum’s full Parallel Test suite -- ICT, MultiWriter ISP, and PFT -- in one station to increase coverage earlier in the process. - **Flexible Test Flow Options --** Support single-panel, dual-panel simultaneous, or sequential test flows to match the TAKT Time and coverage requirements of each product. - **Reduce Test Cell Footprint and Labor --** Higher throughput and combined test processes reduce the number of test systems, fixtures, and operators required.    [Learn More](https://www.checksum.com/ils-x2-dual-panel-automated-test-system?hsLang=en) ![CheckSum 12KN off-line parallel PCBA test system](https://www.checksum.com/hs-fs/hubfs/12KN%20R34%20Transp%201080x1080%20REVB.png?width=1080&height=1031&name=12KN%20R34%20Transp%201080x1080%20REVB.png) ### 12KN Off-Line Automated Test System   The **12KN Semi-Automated Off-Line Test System** supports CheckSum’s complete production test suite of Parallel Test Capabilities -- **ICT, ISP, and PFT** --in a robust semi-automated off-line platform designed for high-volume PCBA panel testing. - Complete CheckSum test capability for **ICT, ISP, and PFT** - Designed for **high-volume panel testing** with up to **5200 test points** - **Dual-level probing for electrical isolation** - Supports CheckSum's **production test software** for process control - **Fast fixture and program changeover** for efficient production use - Fixture compatibility with the **ILS-X2** and a **proven production platform** [Learn More](https://www.checksum.com/12kn-off-line-test-system?hsLang=en) ![Engineers reviewing PCBA test analysis and throughput data](https://www.checksum.com/hs-fs/hubfs/Project%20Analysis%20PCB%20Discussion%20C-2.png?width=1101&height=720&name=Project%20Analysis%20PCB%20Discussion%20C-2.png) ## Free Test Analysis ### Learn How Parallel Test Changes the Math On Your Project   With CheckSum's **Free** **Test Analysis**, you get real test process insights -- on your application -- with no obligation. **What You Get:** ✅ Verified Cycle Time Improvements ✅ Throughput and Efficiency Projections ✅ ROI Projections Specific to your Application     [Request a Free Project Analysis](https://www.checksum.com/checksum-project-analysis-request?hsLang=en) ### Customer Results Library:  Everyone Benefits When Test Keeps Pace *Explore use cases showing how parallel test removed bottlenecks, reduced WIP, and lowered total cost of test across the PCBA flow.* [![4-up engine control unit parallel test project analysis](https://www.checksum.com/hs-fs/hubfs/Appliocation%20Analysis%20Summary%20Card%204-Up-3.png?width=1260&height=1080&name=Appliocation%20Analysis%20Summary%20Card%204-Up-3.png)](https://www.checksum.com/checksum-parallel-test-project-analysis-4-up-electronic-control-unit?hsLang=en) **Parallel Test Application Analysis: 4-Up Engine Control Unit** [![8-up automotive CAN board parallel test project analysis](https://www.checksum.com/hs-fs/hubfs/Appliocation%20Analysis%20Summary%20Card%208-Up-4.png?width=1260&height=1080&name=Appliocation%20Analysis%20Summary%20Card%208-Up-4.png)](https://www.checksum.com/parallel-test-application-analysis-8-up-can?hsLang=en) **Parallel Test Application Analysis: 8-Up CAN Board** [![12-up power control module parallel test project analysis](https://www.checksum.com/hs-fs/hubfs/Appliocation%20Analysis%20Summary%20Card%2012-Up-3.png?width=1260&height=1080&name=Appliocation%20Analysis%20Summary%20Card%2012-Up-3.png)](https://www.checksum.com/checksum-parallel-test-project-analysis-12-up-control-module?hsLang=en) **Parallel Test Application Analysis: 12-Up Power Control Module** [![48-up ultrasonic sensor parallel test project analysis](https://www.checksum.com/hs-fs/hubfs/Appliocation%20Analysis%20Summary%20Card%2048-Up-4.png?width=1260&height=1080&name=Appliocation%20Analysis%20Summary%20Card%2048-Up-4.png)](https://www.checksum.com/parallel-test-application-analysis-48-up-ultrasonic-sensor?hsLang=en) **Parallel Test Application Analysis: 48-Up Ultrasonic Sensor** ![Complete Parallel test Soluton Image A-1](https://www.checksum.com/hs-fs/hubfs/Complete%20Parallel%20test%20Soluton%20Image%20A-1.png?width=1080&height=1031&name=Complete%20Parallel%20test%20Soluton%20Image%20A-1.png)   ### The Complete Test Platform for ICT, ISP, and Functional Test   **CheckSum delivers fully integrated test solutions including fully automated in-line and off-line systems, and turnkey, production ready-test fixtures.**   ***Learn more about CheckSum's advanced automated test systems and how parallel test can impact your SMT manufacturing.*** [Learn More](https://www.checksum.com/parallel-test-advantage?hsLang=en) [![Checksum Logo + Checkmark Vector Solid transp](https://www.checksum.com/hubfs/Checksum%20Logo%20+%20Checkmark%20Vector%20Solid%20transp.png)](https://www.checksum.com) © 2026 CheckSum All Rights Reserved [Linkedin](https://www.linkedin.com/company/checksum-llc)[YouTube](https://www.youtube.com/@checksum2327) **P +1.360.435.5510 ** **6108 188th St. NE** **Suite B800** **Arlington, WA** **98223** **![Footer Background B-1](https://www.checksum.com/hs-fs/hubfs/Footer%20Background%20B-1.png?width=1920&height=216&name=Footer%20Background%20B-1.png)** Return to top