FO converters - PSI-MOS-RS232/FO 660 T

FO converter with integrated optical diagnostics, alarm contact, for RS-232 interfaces up to 115.2 kbps, T-coupler with two FO interfaces (FSMA), 660 nm, for polymer/PCF fiber cable

Product Details

Utilization restriction
EMC note EMC: class A product, see manufacturer's declaration in the download area
Utilization restriction
CCCex note Use in potentially explosive areas is not permitted in China.

Product type Media converter
MTTF 781 Years (SN 29500 standard, temperature 25°C, operating cycle 21%)
322 Years (SN 29500 standard, temperature 40°C, operating cycle 34.25%)
133 Years (SN 29500 standard, temperature 40°C, operating cycle 100%)
MTBF 284 Years (Telcordia standard, 25°C temperature, 21% operating cycle (5 days a week, 8 hours a day))
53 Years (Telcordia standard, 40°C temperature, 34.25% operating cycle (5 days a week, 12 hours a day))

Electrical isolation VCC // V.24 (RS-232)
Maximum power dissipation for nominal condition 2.4 W
Test voltage data interface/power supply 1.5 kVrms (50 Hz, 1 min.)
Supply voltage range 18 V DC ... 30 V DC
Nominal supply voltage 24 V DC (in acc. with UL)
Typical current consumption 100 mA (24 V DC)
Max. current consumption 120 mA
Connection method COMBICON plug-in screw terminal block

Output name Relay output
Output description Alarm output
Number of outputs 1
Maximum switching voltage 60 V DC
42 V AC
Limiting continuous current 0.46 A

Connection method COMBICON plug-in screw terminal block
Torque 0.56 Nm ... 0.79 Nm

Bit distortion, input ± 35 % (permitted)
Bit distortion, output < 6.25 %
Signal Modbus
Transmission channels 2 (1/1), RxD, TxD, full duplex
Data: optical FO
Transmit capacity, minimum -4.6 dBm (980/1000 µm)
-16.6 dBm (200/230 µm)
Transmission length incl. 3 dB system reserve 100 m (With F-P 980/1000 230 dB/km with quick mounting connector)
800 m (With F-K 200/230 10 dB/km with quick mounting connector)
Transmission protocol Transparent to protocol for RS-232 interface
Connection method F-SMA
Wavelength 660 nm
Minimum receiver sensitivity -31.2 dBm
Transmission medium Polymer fiber
PCF fiber
Data: V.24 (RS-232) interface in acc. with ITU-T V.28, EIA/TIA-232, DIN 66259-1
Serial transmission speed 4.8 Kbps ... 115.2 Kbps
Connection method D-SUB 9 plug
Transmission length ≤ 15 m
Conductor cross section flexible max. 2.5 mm²
Conductor cross section flexible min. 0.2 mm²
Conductor cross section solid max. 2.5 mm²
Conductor cross section solid min. 0.2 mm²
Conductor cross section AWG max. 14
Conductor cross section AWG min. 24
Transmission medium Copper
File format/coding UART (11 Bit, NRZ)
Data direction switching Automatic control

Width 35 mm
Height 99 mm
Depth 105 mm

Color green
Material PA 6.6-FR (Housing)

FO cable
Fiber types 980/1000 µm
200/230 µm
Polymer fiber
PCF fiber

Ambient conditions
Degree of protection IP20
Ambient temperature (operation) -20 °C ... 60 °C
Ambient temperature (storage/transport) -40 °C ... 85 °C
Altitude ≤ 5000 m (For restrictions, see the manufacturer's declaration for altitude operation)
Permissible humidity (operation) 30 % ... 95 % (non-condensing)

Designation CE
Certificate CE-compliant
Designation ATEX
Identification  II 3 G Ex nA nC IIC T4 Gc X
Note Please follow the special installation instructions in the documentation!
Designation ATEX, FO interface
Identification  II (2) G [Ex op is Gb] IIC
 II (2) D [Ex op is Db] IIIC
Certificate PTB 06 ATEX 2042 U
Note Please follow the special installation instructions in the documentation!
Designation UL, USA / Canada
Identification Class I, Zone 2, AEx nc IIC T5
Class I, Zone 2, Ex nC nL IIC T5 X
Class I, Div. 2, Groups A, B, C, D
Designation Corrosive gas test
Identification ISA-S71.04-1985 G3 Harsh Group A

Electromagnetic compatibility Conformance with EMC Directive 2014/30/EU
Noise emission EN 55011
Noise immunity EN 61000-6-2:2005
Electrostatic discharge
Standards/regulations EN 61000-4-2
Electrostatic discharge
Contact discharge ± 6 kV
Discharge in air ± 8 kV
Comments Criterion B
Electromagnetic HF field
Standards/regulations EN 61000-4-3
Electromagnetic HF field
Field intensity 10 V/m
Comments Criterion A
Fast transients (burst)
Standards/regulations EN 61000-4-4
Fast transients (burst)
Input ± 2 kV
Signal ± 2 kV
Comments Criterion B
Surge current load (surge)
Standards/regulations EN 61000-4-5
Surge current load (surge)
Input ± 0.5 kV
Signal ± 1 kV
Comments Criterion B
Conducted interference
Standards/regulations EN 61000-4-6
Conducted interference
Comments Criterion A
Voltage 10 V
Emitted interference
Standards/regulations EN 55011
Comments Class A, industrial applications
Criterion A Normal operating behavior within the specified limits.
Criterion B Temporary impairment to operational behavior that is corrected by the device itself.

Free from substances that could impair the application of coating according to P-VW 3.10.7 57 65 0 VW-AUDI-Seat central standard

Mounting type DIN rail mounting

Item number 2708410
Packing unit 1 pc
Minimum order quantity 1 pc
Sales Key CN
Product Key DNC215
Catalog Page Page 439 (C-6-2019)
GTIN 4017918974107
Weight per Piece (including packing) 255.9 g
Weight per Piece (excluding packing) 195.08 g
Customs tariff number 85176200
Country of origin DE


ECLASS-9.0 19170114
ECLASS-10.0.1 19170132
ECLASS-11.0 19170411


ETIM 8.0 EC001467


UNSPSC 21.0 43201500

cUL Recognized

Approval ID: FILE E 238705

UL Recognized

Approval ID: FILE E 238705


Approval ID: PTB 06 ATEX 2042U
Approval Specification Data
Nominal Voltage UN Nominal Current IN Cross Section AWG Cross Section mm2


Approval ID: PxCIF06ATEX2708261X

cUL Listed

Approval ID: FILE E 199827

UL Listed

Approval ID: FILE E 199827

cULus Recognized

cULus Listed

REACh SVHC Lead 7439-92-1
China RoHS Environmentally Friendly Use Period = 50 years
For information on hazardous substances, refer to the manufacturer’s declaration available under “Downloads”

Your advantages

Supply voltage and data signals routed through the DIN rail connectors
Connections can be plugged in via a COMBICON screw terminal block
Redundant power supply possible by means of optional system power supply unit
High-quality electrical isolation between all interfaces (RS-232 // fiber optic ports // power supply // DIN rail connector)
Approved for use in zone 2
Intrinsically safe fiber optic interface (Ex op is) for direct connection to devices in zone 1
Integrated optical diagnostics for continuous monitoring of FO paths
Floating switch contact for advance warning of critical FO paths
Automatic data rate detection for all data rates up to 115.2 kbps