4 Port GEMnet Automotive Ethernet Cable
PCM Cable Co., Ltd. is one of the leading 4 Port GEMnet Automotive Ethernet Cable 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-ZC-0185 uses a consolidated multi-port to distributed single-port architecture. One TE 1-2386629-4 GEMnet Z-Code connector carries four independent channel pairs, which are routed separately to four TE 1-2368022-4 single-port GEMnet Z-Code connectors. Compared with arranging four individual interfaces at the controller, this architecture reduces connector concentration while allowing each branch to be routed independently to different vehicle modules.
The four high-speed channels are not electrically paralleled at the breakout point. Each channel maintains a defined one-to-one branch relationship. PCM-ZC-0185 uses LEONI Dacar 686-3 automotive Ethernet cable with 100Ω nominal assembly impedance and a specified DC–10GHz frequency range. Independent branch routing helps maintain clear signal paths and avoids the uncontrolled impedance discontinuities associated with improvised splicing.
Installation Requirements
Before installation, verify that the host equipment uses a compatible 4-port GEMnet Z-Code interface and confirm the channel mapping for all four branches. Individual branches may be routed to cameras, radar, LiDAR, displays or other high-speed modules, so branch length, bending space, mounting points and connector orientation should be defined during harness design. PCM-ZC-0185 is a passive breakout harness, not an Ethernet switch, signal duplicator, protocol converter or active repeater.
Manufacturing Process
PCM-ZC-0185 manufacturing requires controlled termination, shielding, connector assembly and channel mapping across all four Dacar 686-3 branches. The current assembly specification includes 100% continuity testing, 500VRMS minimum Hi-Pot and 110N minimum cable retention. Multi-channel automotive high-speed harnesses require tighter control of channel assignment and mechanical termination than conventional low-speed breakout wiring.
Service Life
PCM-ZC-0185 is intended for long-term fixed high-speed vehicle-network wiring. The current assembly specification covers an operating temperature range of -40°C to +105°C. Actual service life also depends on cable bend radius, mounting method, vibration, thermal cycling and connector mating frequency, so production programs should validate the complete harness within the intended vehicle installation environment.
Products Specification
| Product Type | GEMnet Z Code 1-to-4 Automotive Ethernet Splitter Cable |
| Part Number | PCM-ZC-0185 |
| Wire rod | LEONI Dacar 686-3 Ethernet Cable |
| P1 Connector | TE: 1-2386629-4;GEMnet Jack Z Code ;8Pin |
| P2-P5 Connectors | TE: 1-2368022-4 ;GEMnet Jack Z Code ;2 Pin |
| Frequency Range | DC-10GHz |
| Working temperature | -40°C~ +105°C |
| Available Lengths | 500 ± 15 mm ;1000 ± 20 mm ; 2000 ± 20 mm |
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Product Features
4-Port GEMnet Main Interface
A TE 1-2386629-4 four-port GEMnet Z-Code interface consolidates four independent high-speed channels into one connector for a more compact controller-side connection.
Four Independent GEMnet Branches
Four TE 1-2368022-4 single-port GEMnet connectors provide defined one-to-one channel breakout for independent routing to separate vehicle modules.
Dacar 686-3 Automotive Cable
LEONI Dacar 686-3 automotive Ethernet cable provides a 100Ω nominal assembly impedance and specified DC–10GHz frequency range for high-speed vehicle data links.
Z-Code Automotive Interface
GEMnet Z-Code interfaces are used across both the consolidated and breakout sides for consistent integration with compatible ECUs, controllers and high-speed vehicle electronics.
Core Application Scenarios
ADAS & Multi-Camera Systems
Designed for multi-channel high-speed data links between ADAS domain controllers, central computing platforms, and front, side, rear or 360° surround-view HD cameras. PCM-ZC-0185 consolidates four channels through one 4-port GEMnet interface at the controller and independently routes them to separate camera modules. This architecture reduces connector concentration around the central controller while maintaining dedicated signal paths for high-resolution image acquisition, surround-view sensing and ADAS vision systems.
Autonomous Driving Domain Controllers & Sensor Fusion
Suitable for high-speed interconnection between autonomous driving domain controllers, central computing units, LiDAR, millimeter-wave radar and other sensing modules. A 4-port GEMnet interface consolidates multiple high-speed channels at the computing platform, while four independent branches can be routed to sensors positioned around the vehicle. This architecture reduces connector concentration at the controller and provides organized physical data paths for multi-sensor acquisition, environmental perception and subsequent sensor-fusion processing.
Core Performance Advantages
● Reduced Controller-Side Connector Footprint
Consolidating four high-speed channels into one multi-port interface reduces connector concentration around ECUs, domain controllers and central computing platforms.
● Independent Four-Channel Routing
Each GEMnet branch carries its own defined channel, allowing separate routing to cameras, radar, LiDAR or ECUs positioned in different areas of the vehicle.
● Next-Generation Vehicle Networking
The GEMnet platform targets multi-gigabit Ethernet and SerDes applications, with TE specifying platform capability up to 56Gbps and 15GHz and support for technologies including IEEE 802.3ch, GMSL2/3, FPD-Link IV, MIPI and PCIe. These are GEMnet platform capabilities and should not be interpreted as a guaranteed 56Gbps rating for every PCM-ZC-0185 configuration.
● Flexible OEM Branch Configuration
Overall length, individual branch lengths, channel mapping, labeling and packaging can be configured around vehicle architecture. Current standard lengths include 0.5m, 1m and 2m.
Frequently Asked Questions
Q1: This cable has a single main plug on one side and a 4-in-1 clip on the other; how does it prevent mis-mating inside dark, narrow panel spaces?
A1: The housing surfaces are strictly integrated with asymmetric, auto-grade keyed mechanical profiles conforming to GEMnet specifications. Smooth engagement occurs solely under correct orientations, and plugs feature a rigid retaining latch built with reverse spring tension that delivers a loud, crisp acoustic "click" upon full locking. This setup enables assembly technicians to verify a secure seating via touch and hearing alone during complete blind mating.
Q2: Vehicle layout lines span long routes with severe EMI noise; will communication drop if this line runs near high-voltage ignition or electric drive inverters?
A2: Absolutely not. The physical layer of vehicular gigabit/multi-gigabit Ethernet maintains punishingly high noise immunity specs. The internal structure integrates a heavy-duty dual-layer shield combining separate aluminum foil per pair (STP) and an overall high-density copper braiding mesh bonded seamlessly to grounded metal connector lips. This defensive shield traps and grounding out all external stray high-frequency electromagnetic noise, keeping the differential wave profile pristine.
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