 | TRP-C31 superceeded by TRP-C37 |
 | TRP-C31M superceeded by TRP-C37M |
 | TRP-C32 superceeded by TRP-C37H |
 | TRP-C34 superceeded by TRP-C37H |
 | TRP-C36 Ethernet to 1 port RS-232/422/485 Opto-Isolated Converter |
 | TRP-C37 Ethernet to 1 port RS-232/422/485 Converter |
 | TRP-C37H Ethernet to 4 ports RS-232/422/485 Converter |
 | TRP-C38 superceeded by TRP-C37H |
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 | TRP-C39 Fibre optic to RS-232/422/485 Opto-Isolated converter, ST 2KM Multi-mode mode |
 | TRP-C39S Fibre optic to RS-232/422/485 Opto-Isolated converter, SC 40KM single mode |
 | TRP-C41 Ethernet to fibre optic Media Converter, SC 20KM single mode |
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 | TRP-C24 16-channel digital output isolated RS-485 module, Open Collector, supporting ASCII and Modbus RTU protocols |
 | TRP-C26 16-channel digital input isolated RS-485 module, supporting ASCII and Modbus RTU protocols |
 | TRP-C28 4-channel isolated digital input and 4-channel power relay output RS-485 module, supporting ASCII and Modbus RTU protocols |
 | TRP-C29 8-channel isolated digital input and 8-channel digital output (O.C) RS485 module, supporting ASCII and Modbus RTU Protocols |
 | TRP-C29U USB to 8-channel isolated digital input and 8-channel digital output(O.C), supporting ASCII and Modbus RTU Protocols |
 | TRP-C37M Modbus TCP to RTU/ASCII Gateway |
 | TRP-C68 8-channel Analog input Isolated RS-485 module, supporting ASCII and Modbus RTU protocols |
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 | TRP-C06 RS-232 to RS-422/485 Opto-Isolated Converter |
 | TRP-C06H Dual port RS-232 to RS-422/485 Opto-Isolated Converter |
 | TRP-C07 RS-422/485 Opto-Isolated Repeater |
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 | TRP-C08 USB to 1 port RS-232/422/485 Opto-Isolated Converter |
 | TRP-C08H USB 2.0 to 2 ports RS-232 and 2-ports RS-422/485 Opto-Isolated Converter |
 | TRP-C08S USB 2.0 to 1 port RS232 and 1 port RS422/485 Opto-Isolated Converter |
 | TRP-C08U USB 2.0 to 4 ports RS-232 Opto-Isolated Converter |
 | TRP-C08X USB 2.0 to 4 ports Serial RS-232/RS-422/RS-485 Converter |
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 | TRP-C51A Bluetooth to RS-232/422/485 all-in-one converter(100M can up to 1Km) |
 | ANT-2-4G-9DB Mini Outdoor Antenna for TRP-C51A |
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 | T-SNAP DIN Rail Mounting Adapter |
 | LI-232-9F9F 1.8m 9 Pin Male to 9 Pin Female Serial Cable
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 | LI-232-9M9F 1.8m Null Modem Serial Cable
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 | LI-USB-A-B 1.8m USB A to B Cable |