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Ethernet Cable Combiner/Splitter Kit

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Combines Two Power and 10/100 Data (POE) Lines on One Ethernet Cable

Product Features:

  • Dual LAN use allows you to simplify installations. Use one Ethernet cable to be run for 2 devices. The MMF-RJ45 Combiner / Splitter kit carries two data lines on one Cat 5e/6 cable to two Mode A (pins 1,2 3,6) devices
  • Achieve 4 Pair PoE (uPoE) with up to 60 watts available for one device - Works easily with your existing 802.3af/at compliant PoE injector/switch or use PoE Texas’ AT-4-56v120w injector
  • Uses two switch ports for one combiner, and splitter separates the signal at the device end
  • Supports 10/100 data rates for each circuit
  • Uses two Switch ports for one Combiner, and Splitter separates the signal at the device end
  • Online Product Manual

Cost effective solution/Dual use scenarios. The MMF-RJ45 combiner splitter kit was designed for unique applications. It can be used to achieve 60 watts of power using 4PPoE to power one dual signature 802.3bt device. OR it can be used to deliver 30 watts of power to two separate devices (Mode A compatible) over one cable run.

The kit can achieve 4PPoE when used with an 802.3at switch or injector

uPoE usage

  • Use with PoE Texas' AT-4 or AT-8 midspans to provide 60 watts of power
  • Combines two 802.3at ports into one uPoE port
  • Max Data Speed Rating: 100 Mbps in uPoE usage
  • Requires two ports on the PoE side of the AT device
  • No splitter required at the remote device

2. The MMF-RJ45 combiner/splitter kit can deliver PoE power to 2 remote devices using one cable run (up to 100 meters)

Specifications for dual LAN use

  • Long run connection 1 x 8P/8C RJ45 Female
  • Device/Switch Connector: 2 x 4P/4C RJ45 Male
  • Cable Rating: Cat 5e
  • Max Data Speed Rating: 100 Mbps
  • Requires two ports on the PoE side and 2 Ports on the LAN side (for data) of the AT device
  • 25 watts per circuit if CAT-6 is used

Important Notes:

  • Each connected device requires a separate router/switch port
  • Only 10/100 is supported over 2 pairs according to Ethernet standards
  • The WiFi-Texas brand supports 802.3af PoE applications
  • Compatible with injectors and switches that use Mode A for power (is not compatible with our passive mode B injectors)

Product Specifications

Adapters included 2 x RJ45 Y-Cable Splitter/Injectors
Connector Types Female RJ45 x 1, Male RJ45 x 2
Dimensions 1x1x5 in.
Input Voltage Range 12-56 Volts
Max Voltage 56 volts
Max. Amps Per Port 1
Operating Humidity 5% to 90%
PoE Mode/Pinout Female RJ45 - Mode A (-1,2 +3,6)/Mode B (+4,5 -7,8) 1 Male RJ45 - Mode A (-1,2 +3,6) 1 Male RJ45 - Mode B (+4,5 -7,8)
PoE Standard Passive


Ask a Question
  • Regarding: MMF-RJ45-2X. Which RJ45 male is Mode A and which one is Mode B

    Technically, both are Mode A.  The MMF-RJ45 supports Mode A power only (1,2,3,6).  The "block" on the female RJ45 end will inject power on to both Mode A and Mode B on to the Cat cable then split it back out on to Mode A on both of the male RJ45s.