User Manual

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First high-speed, isolated, self-powered RS-232 to RS-422, 2-wire/4-wire
RS-485 bi-directional converter with 2.5 KV isolation and 15 KV ESD
protection.
Overview
The TCC-80I is the world’s first high-speed, isolated, self-powered
converter. It is powered through the host’s RS-232 port and provides
complete signal conversion between RS-232 and RS-422/485 devices.
The TCC-80I coverts back and forth between RS-232’s TxD and RxD lines
to either half duplex 2-wire RS-485 or the balanced signal of full duplex
4-wire RS-422/485. In addition, the TCC-80I provides comprehensive 15
KV ESD protection for all serial lines. Perhaps the most important feature
is the 2.5 KV isolation designed to prevent ground loop currents, reduce
damage caused by data loss, and prevent damage to the communication
interfaces. The TCC-80I is also designed to provide RS-485 auto data
direction control, in which the RS-485 driver is enabled automatically
when the circuitry senses the TxD output from the RS-232 signal.
Programming effort is not required to control the transmission direction of
the half duplex RS-485 signal.
Package Checklist
• TCC-80I or TCC-80I-DB9
• USB Power Cord
• User’s Manual
Applications
• Multipoint data acquisition
• Factory automation
• Remote serial device control
• Building security automation
• Critical industrial control