Jakemy Network Cable Tester (JM-468)

The Jakemy JM-468 Network Cable Tester is a portable handheld diagnostic tool designed for testing Ethernet and telephone cables in professional network installations and maintenance environments. It is widely used by IT technicians, network installers, and DIY users to verify cable integrity, identify wiring faults, and ensure proper connectivity in structured cabling systems. Supporting multiple connector types and advanced fault detection features, it provides fast and reliable network troubleshooting.

Product Features

Multi-Cable Compatibility for Network Testing

The JM-468 supports a wide range of cable types including RJ45 (Cat5, Cat5e, Cat6, Cat7), RJ11, and RJ12 connectors. This makes it suitable for both Ethernet networking and telephone line diagnostics in residential, commercial, and industrial environments.

Advanced Fault Detection System

The tester accurately identifies common cable issues such as open circuits, short circuits, mis-wiring, crossed pairs, and split pairs. This ensures quick identification of wiring errors during installation or maintenance.

Dual Unit Design with Remote Testing Capability

The device includes a detachable remote unit, allowing users to test cables installed across different rooms or locations. This feature is essential for verifying in-wall or long-distance cable runs.

LED Pin Mapping Display

A dual LED indicator system provides clear pin-to-pin mapping for all 8 conductors plus grounding (G). This visual system helps users quickly interpret wiring status and detect faults with precision.

Long Cable Testing Range

The JM-468 supports cable lengths of up to approximately 100 meters (328 feet), making it suitable for small to medium-sized network infrastructures.

Energy Efficient Operation

The device operates on a single 9V battery and includes an automatic power-off function after 20 minutes of inactivity. This helps conserve battery life during field use.

Shielded Cable Support Indicator

The tester includes a dedicated “G” LED indicator for testing shielded (STP/FTP) cables, ensuring compatibility with both shielded and unshielded network installations.

Product Specifications

• Model: JM-468
• Cable Compatibility: RJ45, RJ11, RJ12
• Supported Standards: Cat5, Cat5e, Cat6, Cat7
• Testing Range: Up to 100 meters (328 feet)
• Power Supply: 1 x 9V battery (not included)
• Operating Current: 20 mA to 25 mA
• Dimensions: Approximately 10 cm x 10.5 cm x 2.8 cm
• Weight: Approximately 110 g (without battery)
• Display Type: Dual LED pin-to-pin mapping indicators
• Modes: OFF, ON (Normal speed), S (Slow scanning mode)
• Auto Power Off: After 20 minutes of inactivity
• Shielded Cable Support: Yes (STP/FTP via G indicator)
• Application: Ethernet testing, telephone line diagnostics, structured cabling verification, network troubleshooting, and installation validation