User`s guide
LONWORKS LPT-10 Transceiver User’s Guide 5-5
System Specifications
• Up to 128 LPT-10 transceivers or 64 FTT-10 transceivers are allowed per network
segment.
• Both types of transceivers may be used on a given segment, provided that the
following constraint is met:
(1 x number of LPT-10 transceivers) + (2 x number of FTT-10 transceivers) ≤ 128
• The average temperature of the wire must not exceed +55°C, although individual
segments of wire may be as hot as +85°C.
• The sum of the application current of all the nodes in a segment must not exceed 3.2A
at +5V.