User Manual
Table Of Contents

- 3 -
Features and Specifications
• Signals:
RS-232:
RS
-422:
RS-485:
TxD, RxD and GND
TxD+(B) /
-(A),
RxD+(B) /
-(A), GND
Data+(B) / -(A), GND
• Port types:
RS-232:
RS-422/485:
Female DB9
Terminal Block or Male DB9
• Auto-senses baudrates from 50bps to 115.2Kbps
• RS-232 loopback: RTS to CTS; DTR to DSR and DCD
• Supports automatic RS-485 data direction control with no baudrate
switch settings
• 15 KV ESD for all serial RS-232/422/485 signals
• 2.5 KV isolation
• Built-in 120 ohm termination resistors for RS-422/RS-485 (DIP
switch selectable)
• Supports up to 32 units connected in an RS-485 multi-drop network
• Serial Power Source: TxD, RTS, or DTR (RTS/DTR ON is
recommended)
• LED Port Power Indicator (switch settings)
• External Power (jack): DC +5V to +12V adaptors or USB Power cord
(DC +5V)
• Operating temperature: 0 to 60°C (32 to 140°F)
• Dimensions: 42 x 80 x 22 mm
• Case: ABS + PC
• Weight: 50 ± 5 g
• CE, FCC Class B approval
• Power Consumption: 20 mA at +5 VDC (termination disabled)
• Warranty: 5 years
Installation
Serial (RS-232) Port Power
The RS-232 port of TCC-80I is designed with a female DB9 socket to
connect directly to the host PC, with power drawn from the TxD, RTS, or
DTR lines. TCC-80I is capable of taking enough power from the attached
Tx line only. For those attached serial RS-232 devices which does not
provide enough power on its Tx line, additional handshake lines should be
connected to TCC-80I. The DC jack of TCC-80I is also provided for
connecting a 5 to 12 VDC power supply via a USB power cord or external
power adaptor.