OMRON

Basic Positioning
GX-JC06 is an OMRON GX series EtherCAT industrial branch switch (EtherCAT Junction Coupler), specifically designed for EtherCAT motion bus network expansion. It is an industrial real-time motion-specific hub that can only be used on the EtherCAT bus and cannot be used as a regular Ethernet switch. It is compatible with OMRON NX/NJ/NY series motion controllers and EtherCAT bus servo (such as R88D-KN series), used for bus wiring expansion of multi-axis equipment.
Model Segmentation Explanation
GX: OMRON EtherCAT supporting bus accessory series;
JC: Junction Coupler, EtherCAT branch coupler / splitter;
06: Number of ports = 6 RJ45 EtherCAT interfaces.
II. Core Function (What does an EtherCAT coupler do)
EtherCAT is an industrial high-speed real-time motion bus used to connect motion controllers, servo drives, and remote IO modules, requiring extremely low latency and precise multi-axis synchronization.
The hand-to-hand parallel wiring of ordinary network cables has limitations in distance and the defect of a single point failure causing the entire bus to fail. The GX-JC06 solves the wiring problem:
Star topology expansion of the bus
1 EtherCAT input signal enters, splits into 6 independent EtherCAT output ports, supports star topology wiring, each servo / remote IO is connected to a separate wire to the coupler, the wiring is neat, and it is more convenient for equipment disassembly and maintenance;
Fault isolation, no line reconfiguration shutdown
If any port of the servo fails, short-circuits, or has a fault, it will only disconnect that branch, the remaining 5 devices will continue to operate normally, and the entire production line will not be shut down;
Extend the bus wiring distance
Each port supports standard Ethernet cables (CAT5e/CAT6) with a maximum length of 100 meters for a single cable, and can be flexibly arranged in various locations of the equipment for servo motors;
Bus signal shaping and amplification
Built-in signal relay driver chip, compensates for long-line attenuation, ensures multi-axis synchronization accuracy (microsecond-level synchronization), meets the requirements of high-precision robotic arms and multi-axis synchronous equipment;
Plug-and-play without configuration
Pure hardware forwarding, no need to set IP, baud rate, software parameters, the device is recognized as an EtherCAT slave device upon power-on, combined with NJ/NX motion controllers, no additional programming is required.
Essential difference from ordinary home/industrial Ethernet switches
Ordinary switches store and forward data packets, has high latency, cannot be used for EtherCAT real-time motion control;
The GX-JC06 is a hardware direct-through EtherCAT dedicated coupler, hardware-level real-time forwarding, synchronization accuracy ≤ 1μs, specifically adapted for servo multi-axis linkage. Terminal Definition: +V (positive 24V), -V (0V negative), grounding symbol (shield ground);
Power Supply Specifications: Industrial standard DC 20.4~26.4V power supply. The overall power consumption is extremely low. The 24V switch power supply of the electrical control cabinet directly supplies power.

3. Body Identification Indicator Lights
   PWR: Power operation indicator light. The light is always on after power-on, indicating normal power supply;
   Full-metal heat dissipation fins of the shell: Long-term high-load bus transmission heat dissipation, suitable for 0~55℃ electrical control cabinet environment;
   Bottom DIN rail clip: Standard 35mm electrical guide rail installation, and fixed side by side with PLC and servo.
   Four. Key Hardware Specifications
   Port Configuration: 6 independent EtherCAT RJ45 interfaces (1 input 5 output);
   Bus Protocol: Pure EtherCAT real-time bus, compatible with all standard EtherCAT slave stations (Omron R88D-KN EtherCAT servo, NX series remote IO);
   Synchronization Performance: Hardware direct forwarding, bus synchronization jitter <1μs, meeting multi-axis synchronization cutting, multi-joint manipulator;
   Cabling Distance: Maximum 100m for single-port network cable (CAT5e shielded wire);
   Topology Support: Star, tree, cascading expansion (multiple GX-JC06 can be connected in series to expand more ports);
   Fault Isolation: Single-port short circuit / break automatically cuts off this channel, while the bus of the other channels is not interrupted;
   Installation Method: Vertical installation on DIN rail, IP20 protection, only used in the electrical control cabinet;
   Operating Temperature: 0~55℃, stable operation in industrial dust, electromagnetic interference environment.
   Five. Typical Supporting Application Scenarios (Linked with previous servo/PLC)
   Multi-axis Automation Equipment
   Multi-servo mechanical hands, gantry transplanting, multi-station indexing equipment: One NJ motion controller main line is connected to GX-JC06, 6 ports are respectively connected to 6 R88D-KN EtherCAT servo motors to achieve precise synchronous movement;
   Large packaging assembly line
   Multi-axis servo distributed layout for cutting, laminating, labeling, winding, using coupler star-shaped wiring, convenient for individual maintenance of a certain axis without affecting the entire production line;
   Electronic assembly equipment
   Multi-axis dispensing machines, multi-station lock screw machines, PCB inspection equipment, servo distributed in different areas of the equipment, star-shaped wiring neatly arranged;
   Machine tools, CNC fixtures
   Small CNC drilling, multi-axis grinding fixtures, EtherCAT bus expansion for multiple servo and remote IO;
   Remote IO expansion of the assembly line
   Some ports are connected to servo, some ports are connected to NX series remote EtherCAT IO modules, synchronously collecting sensor signals.
   Overall Equipment Linkage Chain
   NJ/NX EtherCAT motion controller → Network cable → GX-JC06 (EtherCAT coupler) → Multiple network cables → R88D-KN EtherCAT servo driver (servo motor) + NX remote IO module. Additional Explanation
   Other models in the series: GX-JC02 (2 ports), GX-JC04 (4 ports), GX-JC06 (6 ports), GX-JC10 (10 ports). Choose the model based on the number of servo axes;
   Do not mix use: This equipment only supports the EtherCAT bus and cannot be connected to ordinary Ethernet or Modbus TCP devices;
   Comparison with your previous MECHATROLINK-II servo: This is a new-generation servo with EtherCAT bus support, featuring superior speed and synchronization accuracy compared to the older ML2 bus model. It is an advanced motion control solution from Omron;
   Maintenance advantages: In a star-shaped wiring layout, any single servo failure only results in the disconnection of the corresponding port, allowing the remaining axes of the equipment to continue operating, significantly reducing the downtime for the entire machine and maintenance time.

For more models, please contact via email: plcvarious@foxmail.com