Smappee Infinity – Installation manual – English
13. Smappee Bus cable specification
Custom RJ10 cables can also be used. Please note the following specifications and limitations:
• A cable containing 2 unshielded twisted pairs (e.g. Cat5 UTP cable). Shielded cable may also be
used (e.g. CAT6 UTP cable).
• Straight connection: pin 1 tot 1, etc.
• Unshielded.
• Pins 1 and 4 and pins 2 and 3 must be twisted pairs.
• Characteristic impedance of 100 ohm.
• AWM style 2835: 60°/30 V – 24 AWG.
• The total length of the CT bus must be no more than 100 meters (109 yards).
• The length of the gateway-Power Box bus must be no more than 500 meters (545 yards).
WARNING: the bus termination plug must be plugged into the output of the last CT
Hub or Solid Core 3-Phase CT. The plug is supplied in Port A of the Power Box.
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