FO converters - PSI-MOS-RS485W2/FO 850 E

FO converter with integrated optical diagnostics, alarm contact, for RS-485 2-wire bus systems (SUCONET K, Modbus ...) up to 500 kbps, NRZ coding, terminal device with one FO interface (BFOC), 850 nm, for PCF/fiberglass cable (multimode)

Detalii despre produs

The PSI-MOS-RS485W2/FO... FO converters convert the electrical data signal into an optical one by protocol transparent means. The integrated optical diagnostics allow permanent monitoring of the FO paths during installation and also during operation. The floating switch contact is activated when the signal output on the fiber optic paths drops to a critical level. The PSI-MOS-RS485W2/FO... E termination devices convert an RS-485 interface to a fiber optic cable. They are ideal for point-to-point connections.

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 957 Years (SN 29500 standard, temperature 25°C, operating cycle 21%)
426 Years (SN 29500 standard, temperature 40°C, operating cycle 34.25%)
176 Years (SN 29500 standard, temperature 40°C, operating cycle 100%)
MTBF 272 Years (Telcordia standard, 25°C temperature, 21% operating cycle (5 days a week, 8 hours a day))
44 Years (Telcordia standard, 40°C temperature, 34.25% operating cycle (5 days a week, 12 hours a day))

Electrical isolation VCC // RS-485
Maximum power dissipation for nominal condition 2.88 W
Test voltage data interface/power supply 1.5 kVrms (50 Hz, 1 min.)
Supply voltage range 18 V DC ... 30 V DC (via pluggable COMBICON screw terminal block)
Nominal supply voltage 24 V DC (in acc. with UL)
Typical current consumption 120 mA (24 V DC)
Max. current consumption 130 mA
≤ 2 A (For operation in a joining station, via the DIN rail connector)
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 (Resistive Load, General Load)
30 V AC (Resistive load)
42 V AC (peak, resistive load)
Limiting continuous current 0.46 A

Connection method COMBICON plug-in screw terminal block
Stripping length 7 mm
Tightening torque 0.56 Nm ... 0.79 Nm

Bit distortion, input ± 35 % (permitted)
Bit distortion, output < 6.25 %
Bit delay ≤ 1 bit
Signal Modbus
Suconet K
Data: optical FO
No. of channels 1
Transmit capacity, minimum -4 dBm (200/230 µm)
-17.6 dBm (50/125 µm)
-14 dBm (62,5/125 µm)
Transmission length incl. 3 dB system reserve 2800 m (with F-K 200/230 8 dB/km with quick mounting connector)
4200 m (with F-G 50/125 2.5 dB/km)
3300 m (with F-G 62,5/125 3.0 dB/km)
Transmission protocol Protocol-transparent to the RS-485 interface
Connection method B-FOC (ST®)
Wavelength 850 nm
Minimum receiver sensitivity -32.5 dBm (50/125 µm)
-32.5 dBm (62,5/125 µm)
-32.1 dBm (200/230 µm)
Maximum receiver sensitivity -3 dBm (200/230 µm)
Transmission medium PCF fiber
Multi-mode fiberglass
Data: RS-485 interface, 2-wire
Serial transmission speed 4.8/ 9.6/ 19.2/ 38.4/ 57.6/ 75/ 93.75/ 115.2/ 136/ 187.5/ 375/ 500 kbps
Connection method Pluggable screw connection
Transmission length ≤ 1200 m (depending on the data rate, with shielded, twisted data cable)
Termination resistor 390 Ω (Can be connected)
220 Ω
390 Ω
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
Max. AWG conductor cross section, flexible 14
Min. AWG conductor cross section, flexible 24
Single-wire/terminal point, solid AWG max. 14
Single-wire/terminal point, solid AWG min. 24
Transmission medium Copper
File format/coding UART (11/10 bit switchable; NRZ), slip-tolerant
Data direction switching Automatic control

Width 35 mm
Height 99 mm
Depth 105 mm

Material PA 6.6-FR (Housing)

FO cable
Fiber types 200/230 µm
50/125 µm
62.5/125 µm
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)
≤ 2000 m (Hazardous locations)
Permissible humidity (operation) 30 % ... 95 % (non-condensing)

Certificate CE-compliant
Identification  II 3 G Ex ec IIC T4 Gc
Certificate UL 21 ATEX 2550X
Note Please follow the special installation instructions in the documentation!
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!
Identification Ex ec IIC T4 Gc
Certificate IECEx ULD 21.00013X
UL, USA / Canada
Identification Class I, Zone 2, AEx ec IIC T4 Gc
Ex ec IIC T4 Gc X
Class I, Div. 2, Groups A, B, C, D
KC approval for South Korea
Certificate KCC-REI-PCK-FOCVT2708339
Corrosive gas test
Identification ISA-S71.04-1985 G3 Harsh Group A
Identification DNV GL
DNV GL data
Temperature B
Humidity A
Vibration A
Enclosure Required protection according to the Rules shall be provided upon installation on board

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 in accordance with VW-AUDI-Seat central standard P-VW 3.10.7 57 65 0

Mounting type DIN rail mounting

Număr articol 2708339
Unitate de ambalare 1 Bucată
Cantitate minimă pentru comandă 1 Bucată
Cod produs DNC212
Pagina de catalog Pagina 435 (C-6-2019)
GTIN 4017918974039
Greutate pe bucată (inclusiv ambalajul) 235,8 g
Greutate pe bucată (fără ambalaj) 154,38 g
Cod tarifar vamal 85176200
Țara de origine DE


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


ETIM 8.0 EC001467


UNSPSC 21.0 43201500


ID de înregistrare: TR TS_D_01871-19


ID de înregistrare: TAA00001KR
Approval Specification Data
Tensiune nominală UN Curent nominal IN Secțiune transversală AWG Secțiune transversală mm2


ID de înregistrare: KCC-REI-PCK-FOCVT270

UL Listed

ID de înregistrare: FILE E 238705

cUL Listed

ID de înregistrare: FILE E 238705


ID de înregistrare: PTB 06 ATEX 2042U
Approval Specification Data
Tensiune nominală UN Curent nominal IN Secțiune transversală AWG Secțiune transversală mm2


ID de înregistrare: PxCIF06ATEX2708261X

cUL Listed

ID de înregistrare: FILE E 199827

UL Listed

ID de înregistrare: FILE E 199827


ID de înregistrare: IECEx ULD 21.0013X


ID de înregistrare: UL 21 ATEX 2550X

cULus Listed

cULus Listed

China RoHS Environmentally Friendly Use Period = 50 years
For information on hazardous substances, refer to the manufacturer’s declaration available under “Downloads”

Produse compatibile

Avantajele dumneavoastră

Can be combined with the PSI copper repeater in a modular way using DIN rail connectors
Supply voltage and data signals routed through the DIN rail connectors
Connections can be plugged in via a COMBICON screw terminal block
Automatic data rate detection or fixed data rate setting via DIP switches
High-quality electrical isolation between all interfaces (RS-485 // fiber optic ports // power supply // DIN rail connector)
Redundant power supply possible by means of optional system power supply unit
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
Suitable for data rates up to 500 kbps
Bit retiming for any cascading depth
Shipbuilding approval in accordance with DNV GL