TCF-90-S-ST MOXA Fiber Converters

Features and Benefits

• Use either external power or power over serial
• Extends RS-232 transmission up to: 40 km with single-mode—TCF-90-S, 5 km with multi-mode—TCF-90-M
• Reduces signal interference
• Protects against electrical interference or chemical corrosion
• 15 kV ESD protection for serial signals
• Compact size

Specifications

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. Connecting RS-232 devices to the TCF-90 is easy. The ST-type optical fiber connector is designed especially for data communication applications that transmit data either between or within buildings. The TCF-90 can be used for industrial applications and for applications that require secure data transfer. The RS-232 port on the TCF-90 uses a DB9 female socket to connect directly to the host PC, with power drawn from the TxD, RTS, and DTR lines.  Although the TCF-90 can obtain enough power from the three data/handshake lines whether the signal is high or low, we strongly recommend setting either the RTS or DTR signal to ON. It’s easy enough to use a multimeter to test if the serial device is supplying the TCF-90 with enough power through the serial connection, but why bother when the TCF-90 can do the testing for you? Connect the TCF-90 to the device’s RS-232 port and set the SW4 switch to Test mode. If the  port power LED indicator lights up, the TCF-90 is receiving enough power. If the LED does NOT light up, you will need to attach an external power source to the TCF-90. In most circumstances, the TCF-90 should be able to operate without using an external power source. However, an external USB power cord or DC power supply can be used in situations where the handshake lines are not available, both the RTS/DTR signals are set to OFF, or the attached device’s serial interface chip provides less power than required.

Optical Fiber Side

Fiber Connector: ST
Cable Requirements:
     Single-mode: 8.3/125, 8.7/125, 9/125, or 10/125 μm
     Multi-mode: 50/125, 62.5/125, or 100/140 μm
Transmission Distance:
     Single-mode: 40 km
     Multi-mode: 5 km
Wavelength:
     Single-mode: 1310 nm
     Multi-mode: 850 nm
Tx Output:
     Single-mode: > -5 dBm
     Multi-mode: > -5 dBm
Rx Sensitivity:
     Single-mode: -24 dBm
     Multi-mode: -20 dBm

RS-232 Side

Connector: DB9 female
Signals: RS-232 Tx, Rx, GND (Loop-back wiring: RTS to CTS, DTR to DSR and DCD)
Baudrate: 300 bps to 115.2 kbps

Physical Characteristics

Housing: ABS + PC
Dimensions: 42 x 80 x 22 mm (1.65 x 3.15 x 0.87 in)
Weight: 150 g

Environmental Limits

Operating Temperature: 0 to 60°C (32 to 140°F)
Storage Temperature: -20 to 75°C (-4 to 167°F)
Ambient Relative Humidity: 5 to 95% (non-condensing)

Power Requirements

Source of Input Power: RS-232 port (TxD, RTS, DTR) or power input jack
Input Voltage: 5 to 12 VDC
Power Consumption: 20 mA @ 5 V (with termination disabled)

Standards and Certifications

Safety: UL 60950-1
EMC: CE, FCC
EMI: FCC Part 15 Subpart B Class B
EMS:
     IEC 61000-4-2 (ESD) Level 2,
     IEC 61000-4-3 (RS) Level 2,
     IEC 61000-4-4 (EFT) Level 2,
     IEC 61000-4-5 (Surge) Level 3,
     IEC 61000-4-6 (CS) Level 2,
     IEC 61000-4-8 (SFMF) Level 1
Green Product     RoHS, CRoHS, WEEE

MTBF (mean time between failures)

Time: 2,272,562 hrs
Database: MIL-HDBK-217F

Warranty

Warranty Period: 5 years