Moxa Technologies TCF-90 User manual

P/N: 1802000900012
*1802000900012*
TCF-90
Quick Installation Guide
Version 1.0, June 2020
Technical Support Contact Information
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2020 Moxa Inc. All rights reserved.

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Overview
Introduction
TCF-90 is a compact size, high-speed RS-232 to Optic Fiber converter
which handles the extension of RS-232 transmission from simply 15
meters to 5 km (TCF-90-M, multi-mode) or 40 km (TCF-90-S, single-
mode) without supplying external power to it. The TCF-90 series is
designed to drain the power from the attached serial port. It allows two
RS-232 serial devices to connect to each other in full duplex
transmission via the reliable optic fiber. Moreover, the TCF-90 isolates
the devices from the dangerous ground potential rise, ground loops,
and also the electrical EMI/RFI noise. It greatly reduces RF radiation
and susceptibility. Data security is also enhanced by almost nonexistent
electromagnetic emissions.
Package Checklist
Before installing the TCF-90, verify that the package contains the
following items:
•TCF-90
•USB Power Cord
•Quick Installation Guide
NOTE: Please notify your sales representative if any of the above items
are missing or damaged.
Applications
•Point-to-point data communication
•Factory automation
•Remote serial device control
•Building security automation
•Critical industrial control
Specifications
Serial Communications
Serial Interface
RS-232
RS-232 Signals
TxD, RxD and GND
RS-232 Loopback
RTS to CTS; DTR to DSR and also DCD
Port Types
DB9 Female
Baudrate
300 bps to 115.2 Kbps
Fiber Communications
Connector Type
ST type

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Optic Fiber Interfaces
Multi/Single-mode
Optic Fiber Transmit Distance
TCF-90-S Multi-mode: 40 km
TCF-90-M Single-mode: 5 km
Wavelength
TCF-90-S: 1310 nm
TCF-90-M: 850 nm
TX Output Single mode: 0 to -5 dBm
Multimode: 0 to -5 dBm
RX Sensitivity
Single mode: 0 to-25 dBm
Multimode: 0 to -20 dBm
Environmental
Operating Temperature
0 to 60°C (32 to 140°F)
Storage Temperature
-20 to 75°C (-4 to 167°F)
Power
Ext. Power (jack)
5 to 12 VDC adapters or a USB Power
cord (DC +5V)
Serial Power Source
TxD, RTS and DTR; (RTS/DTR ON are
recommended)
Power Consumption
5 to 12 VDC 20 mA(max.)
Mechanical
Dimensions (W × D × H)
42 × 80 × 22 mm
Housing
Plastic (ABS + PC)
Gross Weight
50 ± 5 g
Regulatory Approvals
EMC
CE, FCC Class B approval
Warranty
Warranty
5 years
Typical Applications
Connecting TCF-90 to the RS-232 devices is simple. At the RS-232 side,
it is easy to connect to the host computer or the serial port of a device.
The ST type optic fiber connector is designed especially for the
inter/intra building applications, security, data communication and also
the industrial applications. Typical connection is as follows,
Serial RS-232 Port Power
The RS-232 port of TCF-90 is designed with a female DB9 socket to
connect directly to thehost PC, with power drawn from the TxD, RTS,
and DTR lines. Although the TCC-80I is able to obtain enough power
from the combination of the three Data/Handshake lines regardless of
whether the signal is high or low, it is highly recommended to have the
“ON” signal on either the RTS or DTR. For those applications that do not

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use the handshake lines, a DC jack is provided for connecting a 5 to 12
VDC power supply via a USB power cord or external power adaptor.
Port Power Dissipation
When installing an RS-232 port-powered TCF-90 converter, pay
attention to the power consumption, RS-232 cable length, and the
power provided by the serial port. In general, TCF-90 itself derives 70
mW from the power source; a standard COM port on a host PC can
provide 70 to 90 mW of power if the TxD, RTS, and DTR lines are
connected.
Moreover, the RS-232 cable length should be shorter than 15 m (@
9600 bps) to ensure that less power is lost from the host/device to the
TCF-90. The rest of the supplied power is used for transmitting the
Optic fiber signal.
Serial Port Power Compatibility
There are various kinds of serial ports that use diverse interface chips.
The power provided by those ports are not always the same, and some
of them do not even have enough power to activate the TCF-90.
Usually, the on-board COM1 and COM2 ports seldom have problems.
The table shows the add-on cards and the Serial-to-Ethernet Device
Servers that have been well tested as a good power source to drive the
TCF-90 when their RTS/DTR is connected and at the “ON” status.
RTS/DTR is ON
Multiport Serial Board
Serial Device Server
Moxa Smartio
CP-118U
CP-168U V2
CP-104U V2
CP-102U
Moxa NPort 5110/5210 V2.1
5410 V2.2
5610 V3.0
(or later)
Moxa Smartio
CP-118EL Series
CP-168EL Series
CP-104EL Series
Moxa USB to Serial UPort
1410/1610
Moxa USB NPort U1110
LED Port Power Indicator
The best way to ensure the attached serial port does provide enough
electricity to the TCF-90 is to check the power indicator LED at the front
panel. Attach the TCF-90 to the target RS-232 Port, turn the SW4 at
the side to the “Test” mode, it will be so easy to distinguish if the power
it OK or not by checking the LED status. ON means OK and in the

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opposite, please attach the external power to the TCF-90 when the LED
is OFF.
NOTE
Please turn the SW4 back to “Std.” mode (default) when
finishing the test. During the “Test” mode, TCF
-90 WILL NOT
perform any data transmission.
Optional External Power
In most circumstances, TCF-90 should be working without ext. power if
RTS/DTR is connected. For those application that the host does not
have the handshake lines available, or the both RTS/DTR are at “OFF”
states in which the interface chip of the attached serial port provides
less power than the general ones, an external USB power cord or DC
power supply should be used.
In short, performing the “LED Port Power Indicator” test is
recommended to verify if the power source is enough.
Ext. Power Supply
If additional external power is required, TCF-90 is designed to be
connected to a standard 5 to 12 VDC power adapter.
SW4

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RS-232 Pinouts
The DB9 Female port for the RS-232 signal is shown in the following
figure.
PIN
RS-232
1
DCD
2
TxD
3
RxD
4
DSR
5
GND
6
DTR
7
CTS
8
RTS
NOTE
Each group of (RTS, CTS; DTR, DSR and DCD) pins are shorted,
freeing users from the hardware flow control cable wiring
problem.
USB Power Cord
If additional external power is required, TCC-80 is designed to be
connected to a standard 5 to 12 VDC Power Supply, or an USB Power
Cord “CBL-USBAP-50”
USB “A” Male Connector
Connector
Pinouts
Signals
1
+5 VDC
2
-
3
-
4
GND
TCF-90
USB Connector
shorted
shorted

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NOTE
The optical transceiver is a class 1 laser product. The optical
transceiver complies with FDA performance standards for laser
products, except IEC 60825
-1 Ed. 3., as described in Laser
Notice No. 56, dated May 8, 2019. In order to meet laser safety
requirements, the transceiver shall be operated within the
Absolute Maximum Ratings.
WARNING
All adjustments have been done at the factory before the
shipment of devices. No maintenance or user serviceable part is
required. Tampering with or modifying the performance of the
device will result in
a voided product warranty. If any of the
controls ar
e adjusted, or any procedures altered other than
those specified herein
, may result in hazardous radiation
exposure.
WARNING
Class 1 laser products comply with 21 CFR 1040.10 and
1040.11
, except for conformance with IEC 60825-1 Ed. 3., as
described in laser Notice No.56 dated May 8, 2019.