
LPT-11 Transceiver Pinout
Name Pin Number Function
NET_A 1 Connection to TP network, polarity insensitive
NET_B 2 Connection to TP network, polarity insensitive
V+ 3 Power supply input voltage
INDUCTOR 4 Power supply inductor connection
VCC 5 +5VDC power output for device operation
GND 6 Power supply ground
CLK 7 Transceiver clock input from Neuron Chip
NC
8
No Connect (not connected internally)
TXD 9 Neuron Chip CP1
RXD 10 Neuron Chip CP0
NC
11 No Connect (not connected internally)
NC
12
No Connect (not connected internally)
NC 13 No Connect (not connected internally)
NC
14
No Connect (not connected internally)
t
esting. As a UL, CSA, and TÜV recognized component, the
L
PT-11 transceiver can be integrated into a product with mini-
mal additional safety testing. The transceiver is small enough to
fit into virtually any application, and is economically priced for
OEM applications of any volume.
E
chelon offers a comprehensive range of development
t
ools, network interfaces, routers, and network services tools to
simplify the task of designing products using the LPT-11 trans-
ceiver. Technical support for the transceiver is available
through Echelon’s LonSupport™ Premier technical assistance
program.
LPT-11 System Block Diagram
LPT-11
Device
LPT-11
Device
LPT-11
Device
FT 3120 / FT 3150
Smart Transceiver
Device
LPI-10
Interface
48VDC
Power
Supply
Sensor
Actuator
+5VDC power
42.4VDC max.
To additional
LPT-11 or
FT 3120/
FT 3150
Smart
Transceiver
Devices
FT 3120 / FT 3150
Smart Transceiver
Device
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