Crimping tool and cable tester INTELLINET 780124 — RJ-12 crimper, length 220 mm, black/yellow

The Intellinet Crimping Tool and Cable Tester 780124 combines a universal modular plug crimping tool with an integrated cable tester in a compact handheld design. It supports cutting, stripping and terminating RJ45, RJ11, RJ12 and RJ22 cables and can verify wiring continuity, open circuits, short circuits and miswires before or after installation. With a durable black-and-yellow housing and a compact footprint (80 × 220 × 25 mm), the tool is suitable for fieldwork, rack installations and workshop use.

Advantages

This 2-in-1 tool reduces the need to carry separate crimpers and testers by providing crimping, cutting, stripping and basic cable testing in one device. It offers support for multiple modular plug types (RJ45, RJ11, RJ12, RJ22), helps identify wiring faults such as opens, shorts and miswires, and features a compact, ergonomic design for easier handling during repetitive tasks.

Suitable for

• Installing and terminating Ethernet (RJ45) patch cables
• Telephone and legacy low-voltage cabling (RJ11, RJ12, RJ22)
• Field technicians performing quick continuity and wiring checks
• IT staff and DIY users preparing custom-length cables

Key specifications

• Brand: INTELLINET
• Model / MPN: 780124
• Functions: Crimping, cutting, stripping, cable testing (continuity, open, short, miswire)
• Supported connectors: RJ45, RJ11, RJ12, RJ22
• Dimensions: 80 mm (W) × 220 mm (L) × 25 mm (H)
• Weight: 0.513 kg
• Colour: Black, Yellow

How to use

Select the appropriate connector slot for the modular plug you are terminating. Use the cutter to trim the cable to length, then strip the outer jacket in the stripping slot to expose the conductor pairs. Arrange conductors according to the required pinout, insert the plug and apply the crimping action. For testing, connect one end of the cable to the main unit and the other end to the remote/tester module, then activate the tester to read continuity and wiring status. Follow the indicator results to confirm correct termination or to locate faults.

Usage recommendations

Use the tool on cables within the supported connector types and avoid excessive force when crimping to prevent damage to connectors or conductors. Store the device in a dry place and inspect cutting and crimping jaws regularly for wear. For critical installations, verify results with a full-featured cable certifier when required.