The TCF-90 is a compact media converter that transmits RS-232 signals over optical fiber. Power is derived from either the serial port or an external power source.

The TCF-90 extends RS-232 transmission up to 5 km with multi-mode fiber, or up to 40 km with single-mode fiber. A pair of TCF-90 converters can be used to connect two RS-232 devices with optical fiber in full duplex mode.

The optical fiber isolates the data signals from dangerous increases in ground potential, ground loops, and electrical EMI/RFI noise, and enhances data security by eliminating the harmful effects of RF radiation and susceptibility to electromagnetic radiation.

Fiber Connector
SC or ST

Wavelength
Single-mode 1310 nm
Multi-mode 850 nm

Tx Output
Single-mode > -5 dBm
Multi-mode > -5 dBm

Rx Sensitivity
Single-mode -25 dBm
Multi-mode -20 dBm

Connector
Terminal Block

RS-232 Signals
TxD, RxD, SGND

RS-422 Signals
TxD+, TxD-, RxD+, RxD-, SGND

RS-485-4w Signals
TxD+, TxD-, RxD+, RxD-, SGND

RS-485-2w Signals
Data+, Data-, SGND

Baudrate
50 bps to 921.6 Kbps

ESD Protection
15 KV for all signals

Operating Temperature
0 to 60°C (32 to 140°F)

Input Voltage
12 VDC

Power Consumption
150 mA @ 12 V