UTP Splitter DATACOM 4207 4×RJ45 CAT3 - passive line splitter for one UTP to four RJ45 ports

DATACOM 4207 is a passive UTP line splitter that combines four two‑wire telephone lines into a single 4‑pair UTP cable. The device is passive and intended for use with Cat3 cabling; it is sold and used in pairs, so an even quantity must be purchased. The splitter offers a compact form factor and plug‑and‑play operation for basic telephony, low‑speed data or legacy network extension scenarios.

Advantages

The DATACOM 4207 requires no power or configuration and provides a simple, mechanical method to route four separate 2‑wire lines over one 4‑pair UTP cable. Its compact dimensions make it suitable for installations with limited space and for retrofitting existing Cat3 infrastructure. Pin mapping is printed for each connector to ensure correct wiring when used in pairs.

Suitable for

• Basic analog telephony lines over Cat3 UTP
• Low‑speed data or legacy network extensions that use 2‑wire pairs
• Situations where multiple telephone lines must be combined into a single 4‑pair cable

Key specifications

• Model: DATACOM 4207
• Type: Passive UTP splitter, 1→4 RJ45 (Cat3)
• Connectors: 1×RJ45 male input, 4×RJ45 female outputs
• Pinout (RJ45M: 1-2-3-4-5-6-7-8): RJ45F1: x-x-x-4-5-x-x-x; RJ45F2: x-x-4-x-x-5-x-x; RJ45F3: 4-5-x-x-x-x-x-x; RJ45F4: x-x-x-x-x-x-4-5
• Dimensions: width 27 mm, height 26 mm, body length 85 mm, length including cable 220 mm
• Brand: DATACOM, MPN: 4207, EAN: 8596250008856

How to use

Install the splitter pair by connecting the RJ45 male plug to the source UTP cable and the four RJ45 female outputs to the destination devices or phone lines according to the printed pinout. Because the device is passive, ensure correct mating of pinouts between the two splitters in the pair. No power or configuration is required; verify continuity and signal integrity after installation with appropriate test equipment.

Usage recommendations

Purchase an even number of units and use them in matching pairs. Use with Cat3 cabling and for low‑frequency signals (analog telephony or low‑speed data). Avoid use for modern high‑speed Ethernet (Cat5e/Cat6) or any application requiring active signal conditioning.