https://cablematic.com/en/products/active-extender-long-range-tcp-ip-over-coaxial-1000-m-SJ009/
Active extender long range TCP / IP over coaxial 1000 m
- Active extender that transfers Ethernet signal up to a distance of 1000 m using 75 Ohms coaxial cable.
- Transmission speed in BNC: 100Mbps (500m) and 10Mbps (1000m). Transmission speed in RJ45: 100Mbps (500m) and 10Mbps (800m) with IP09.
- Each module has a female RJ45 connector, a female BNC connector and a DIP Switch.
- RJ45 supports 10BASE-T, 100BASE-TX, 100BASE-T1 standard.
- Supports Auto MDI / MDI-X.
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- Active extender that transfers Ethernet signal up to a distance of 1000 m using 75 Ohms coaxial cable.
- Transmission speed in BNC: 100Mbps (500m) and 10Mbps (1000m). Transmission speed in RJ45: 100Mbps (500m) and 10Mbps (800m) with IP09.
- Each module has a female RJ45 connector, a female BNC connector and a DIP Switch.
- RJ45 supports 10BASE-T, 100BASE-TX, 100BASE-T1 standard.
- Supports Auto MDI / MDI-X.
More info
Active Ethernet TCP / IP signal extender through coaxial cable. It consists of two modules that have a female RJ45 connector and a female BNC connector each. Both modules are interconnected by coaxial cable. The Ethernet cable signal for TCP / IP signal transmission is limited to 1000 m.
Specifications
- Active extender that transfers Ethernet signal up to a distance of 1000 m using 75 Ohms coaxial cable.
- Transmission speed in BNC: 100Mbps (500m) and 10Mbps (1000m). Transmission speed in RJ45: 100Mbps (500m) and 10Mbps (800m) with IP09.
- Each module has a female RJ45 connector, a female BNC connector and a DIP Switch.
- RJ45 supports 10BASE-T, 100BASE-TX, 100BASE-T1 standard.
- Supports Auto MDI / MDI-X.
- Active. Each module requires a power supply (DC12V, 0.5 mA). Two power supplies are included.
- On / off indicator LEDs and status of each port.
- Mounted in a black metal casing.
- Size of each module: 49 x 98.7 x 25 mm.
- It can be linked with cables from our references # RC01x and # TT006.
- Gross Weight: 440 g
- Product size (width x depth x height): 4.9 x 9.9 x 2.5 cm
- Number of packages: 1
- Packages size: 24.0 x 14.5 x 4.5 cm
Technical terms
- Impedance
- Categories network cables
- RJ45
- BNC
Impedance (Z) is the total opposition that a circuit offers to alternating current (AC) flow when a specific voltage is applied.
Unlike simple resistance, impedance is a complex quantity comprising resistance (the real part) and reactance (the imaginary part, representing inductive or capacitive effects). In the frequency domain, impedance is represented as a phasor, accounting for both magnitude and phase shift between voltage and current. In DC circuits, impedance reduces to pure resistance with zero phase angle.
| Parameter | Technical Spec |
|---|---|
| Symbol | Z |
| Unit | Ohm (Ω) |
Impedance management is critical in high-speed hardware design and signal integrity. In modern PCB manufacturing, controlled impedance ensures that high-frequency signals reach their destination without reflections, which is vital for PCIe or DDR5 performance.
Complex Domain Analysis
Mathematical modeling of impedance using the j-operator allows engineers to optimize filter performance and resonance characteristics in electronic systems.
Key Advantages
- Maximum power transfer through impedance matching.
- Minimized signal reflections in high-frequency transmission lines.
- Improved electromagnetic compatibility (EMC).
Note: Impedance is the cornerstone of modern AC circuit theory and high-frequency design.

