Toshiba TC-net 100 Instruction Manual page 20

Chapter 1 Introducing the TN8 Module
Station address setting switch (STN-H, STN-L)
Switches to set the station address in hexadecimal. For setting method,
refer to "Chapter 3 Setting."
Operation mode setting switch (MODE)
Switches to set the operation mode. For setting method, refer to
"Chapter 3 Setting."
Serial communication port RS-232C (TOOL)
A RS-232C port for maintenance. The connector is a 9-pin D-sub
connector (socket).
TC-net 100MT-RJ connectors (TN-A and TN-B)
A communication port for the TC-net 100. The optical fiber cord with
the MT-RJ connector is connected to it.
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