
LT-4201TM/4301TM Installation Guide
45
English
Serial Interface Pin Assignment COM1
The figure shows the pins of the RJ45 connector when viewed from LT:
The table describes the pin assignment of the RJ45 connector:
CANopen Capabilities
The LT CANopen master has the following features:
For each additional CANopen slave:
The application size increases by an average of 10 KB that can result in a memory size
overload.
The configuration initialization time at startup increases, which can lead to a watchdog
condition.
Pin RS-232C RS-485 Description
1 RxD N.C. Received data (RS-232C)
2 TxD N.C. Transmitted data (RS-232C)
3 N.C. N.C. Not connected
4 N.C. D1+ Differential data (RS-485)
5 N.C. D0- Differential data (RS-485)
6 N.C. N.C. Not connected
7 N.C. N.C. Not connected
8 GND GND Signal ground
WARNING
UNINTENDED EQUIPMENT OPERATION
Do not connect wires to unused terminals or terminals marked “Not Connected (N.C.)”.
Failure to follow these instructions can result in death, serious injury, or equipment
damage.
Maximum number of slaves on the bus 16 CANopen slave devices
Maximum length of CANopen fieldbus cables According to the CAN specification (see cable
length and transmission speed).
Maximum number of PDOs managed by the
master
32 TPDOs + 32 RPDOs
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