Micro-D 9 Pin to DB9 Cable Compatible Molex 83421 Series
PCM Cable Co., Ltd. is one of the leading Micro-D 9 Pin to DB9 Cable Compatible Molex 83421 Series manufacturers and suppliers in China. Welcome to wholesale high quality customized products at discount price from our factory. Contact us for quotation and free sample.
PCM-S-0788 is designed to bridge the interface gap between compact Commercial Micro-D equipment and standard DB9 hardware. One end uses a 9-circuit Micro-D male connector for space-conscious controllers, embedded modules and compact instruments, while the opposite end provides a standard D-Sub 9-pin male interface for compatible legacy equipment and test systems.
This asymmetric architecture is particularly useful for equipment upgrades, allowing newer Micro-D hardware to integrate with existing DB9 infrastructure without adding a separate adapter.
Core Advantages
As Premier Cable's engineering milestone in crossover hybrid interconnections, this runner delivers a flawless peer-to-peer conversion from a 1.27mm micro-pitch Micro-D to a 2.77mm standard D-Sub profile. Engineered to eliminate structural signal reflections at transitional nodes, it optimizes linear characteristics to anchor cross-size impedance matching tuning consistency, severely curtailing waveform distortions across industrial multi-channel monitoring network nodes during micro-host-to-standard-peripheral interlinks.
Stable Connection
Countering severe electromagnetic fields emitted by workshop inverter modules, this heterologous harness implements a heterogeneous loop total-state closed anti-noise grounding layer. Stamped grounding dimples on both the Micro-D and standard DB9 steel frames secure a 360-degree seamless electromagnetic wrap upon mating. Combined with a dense multi-shielding net, it establishes a robust high-and-low-frequency broadband transient noise hardwired defense to eradicate packet loss.
Installation Requirements
This assembly features asymmetrical mechanics specialized for hybrid boundaries where micro-panels mate alongside traditional large serial sockets inside space-restricted PLC rack spacing configurations. The Micro-D head deploys micro-slotted jackscrews, while the DB9 face utilizes extended knurled thumbscrews. This layout targets high-density chassis panel breakout routing bottlenecks, granting technicians swift toolless dual-end locking within narrow slits.
Products Specification
| Product Name | Micro DB9 to DB9 9-Pin Male-to-Male Shielded Cable |
| Drawing Number | PCM-S-0788 |
| P1 Connector | Micro DB9P Male |
| P2 Connector | Standard DB9P Male |
| Pin Count | 9 Pin-9 Pin |
| Wiring Method | 1:1 Straight-Through |
| Standard Length | 2000 + 30mm |
| Wire rod | UL2464 |
| Conductor | 28AWG x 9C |
| Cable Outer Diameter | OD 5.6mm |
Compatible
★ PCM-S-0788 -0.46M Compatible Molex 834219036
★ PCM-S-0788 -0.91M Compatible Molex 834219037
★ PCM-S-0788 -1.83M Compatible Molex 834219038
★ PCM-S-0788 -5.0M Compatible Molex 834219286
Products Display
Product Features
Micro-D to DB9 Symmetrical Dual-Male Matrix
Integrates a 1.27mm Micro-D male on one side and a 2.77mm standard DB9 male on the other for seamless heterogeneous serial bus linear relaying.
Dual Stamped Dimple Metal Envelopes
Both multi-size steel front brackets integrate raised grounding dimples to automatically secure cross-cabin shell grounding closure and seamless shield continuity.
Braided-Plus-Dual-Foil Omnidirectional Shield
Dense copper braid overlapping multi-layer aluminum foils constructs a noise-shielded continuous physical layer against broadband electromagnetic interference.
Asymmetric Jackscrews & Knurled Thumbscrews
Outfitted with micro-slotted jackscrews on the micro-end and extended knurled thumbscrews on the standard end for versatile quick manual alignment inside tight spots.
Core Application Scenarios
Micro-to-Standard IPC Interconnects
Designed to bridge rugged embedded SBCs, UAV flight-control modules, and compact robotic controllers with compatible standard DB9 industrial equipment. The Micro-D end minimizes host-side space, while the DB9 end supports integration with compatible serial or equipment-defined I/O systems.
Semiconductor ATE Peripheral Interconnects
Suitable for chip-level burn-in, MEMS functional testing, and compact ATE fixtures, converting dense Micro-D 9-pin connections to standard DB9 instrument or control interfaces for acquisition, trigger, and equipment-control signal routing.
Frequently Asked Questions
Q1：Can PCM-S-0788 replace Molex 83421-9036 / 9037 / 9038?
A1：PCM-S-0788 is designed for applications associated with 83421-9036 / 9037 / 9038, using a Micro-D 9-pin female to standard DB9 male configuration. Pin mapping and cable length can be matched to the original equipment requirements. Verify the original pinout and mechanical specifications before replacement to ensure compatibility.
Q2：How does the Micro-D-to-DB9 cable reduce EMI in industrial environments?
A2：PCM-S-0788 can use shielded cable construction and controlled conductor routing to help reduce external EMI and inter-channel interference near inverters, motors, and industrial power equipment. Combined with molded connectors and proper shield termination, it supports stable Micro-D-to-DB9 signal transmission in industrial control and test systems.
Q3：How does PCM-S-0788 protect the smaller Micro-D interface from cable stress?
A3：PCM-S-0788 uses overmolded connector transitions and strain-relief structures to distribute mechanical loads caused by cable weight, bending, vibration, and handling. With proper locking hardware and cable support, it helps reduce stress on the smaller Micro-D interface and protects the equipment-side connection during long-term use.
Products Drawing
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