Perle PSI-MOS-RS422/FO 850 T Serial to Fiber ...

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Produktgruppen > Mediaconverter > Perle PSI-MOS-RS422/FO 850 T Serial to Fiber ...

Perle PSI-MOS-RS422/FO 850 T Serial to Fiber Converter

RS422/RS485 4-wire over Fiber - 4-wire RS422 and RS485 to Redundant Fiber

Perle PSI-MOS-RS422/FO 850 T Serial to Fiber Converter
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  • Two ST type fiber connectors
  • Extend serial data up to 2.6 miles
  • Immune to EMI, RFI and transient surges
  • Point-to-point or star configuration
  • Terminal Block for 4-wire RS422/RS485 Connections
For applications where redundancy is required, the PSI-MOS-RS422/FO 850 T Serial to Fiber Converter transparently connects 4-wire RS422/RS485 and INTERBUS devices to two fiber optic cables. By transmitting serial data over optical fiber, these serial media converters provide an economical path to extend the reach of RS422 and RS485 devices. The serial data input is transmitted out both fiber ports to different locations or back-up systems.


Expandable Serial to Fiber Network infrastructures

Up to ten (10) Serial to Fiber Converters can be grouped together using the TBUS DIN Rail bus system for voltage and data. This allows the serial converter to operate in additional network topology environments:

  • as a star coupler, taking the serial data input signal and distributing it to up to 20 Fiber optic output ports
  • linear structure can be used to network several RS422/RS485 devices to form a master/slave structure


Long Distance Serial Data Transmission over Fiber

With the FO 850 T Serial to Fiber Converter you can extend your serial data transmission up to 4.2km (2.6 miles). Therefore, any two pieces of asynchronous serial equipment, located miles apart, can communicate at full duplex over fiber optic cable at rates up to 2 Mbps.


EMI, RFI and Transient Surge Immunity

Another advantage of the FO 850 T fiber optic transmission system is the electrically isolated connection of devices. Electromagnetic interference (EMI) is a common phenomenon in typical environments like industrial plants, warehouses and factory floors. This interference can cause corruption of data over RS422 or copper-based Ethernet links. Data transmitted over fiber optic cable however is completely immune to this type of noise, thus preventing the negative effects of voltage equalization currents and electromagnetic interference on the data cables. A Serial to Fiber Media Converter therefore enables you to inter-connect your serial devices over fiber ensuring optimal data transmission, increased availability of the system, and improved network design flexibility for point-to-point connections and star structures.


Flexible Fiber Optic Connections

The FO 850 T operates at 850 nm wavelength, using a separate LED emitter and photo-detector on ST type connectors. Almost any multimode glass fiber size can be used including 50/125 m, 62.5/125 m, and 200/230 m.


Power Budget Considerations

Calculating the power budget is critically important with planning the fiber optic link. The optical power budget is the amount of light required to transmit data successfully over distance through a fiber-optic connection. The amount of light energy available within the setup will dictate the length of the fiber optic cable run between serial media converters within the network. Optical power budgets are critical to help businesses avoid signal distortion. Transmit and receive dBm can be found in the Hardware specifications.


High Quality Features and Support

The FO 850 T are also equipped with comprehensive diagnostic functions to increase system availability, simplify start-up and permanently monitor the optical transmission quality. The integrated optical diagnostics allow permanent monitoring of the FO paths during installation and operation. The floating switch contact is activated when the signal level on the fiber optic paths reaches a critical level. This early alarm generation enables critical system states to be detected before they result in failure. These cost and time saving features, along with free worldwide technical support, make the FO 850 T serial to fiber converter the smart choice for IT professionals.

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




PSI-MOS-RS422/FO 850 T Serial to Fiber Media Converter Applications
  • near heavy electrical equipment
  • in environments with electrical (EMI) or radio (RFI) interference
  • in environments with transient surges
  • in industrial plants, warehouses and factory floors
  • enabling asynchronous serial equipment to communicate at full duplex, with rates up to 2 Mbps, over optical fiber
Point-to-point connections between serial devices over fiber
Configure the point-to-point connection redundantly to increase availability by using two PSI-MOS-RS422/FO 850 T Serial to Fiber Converters. Easily convert a data link from a single copper cable out to two fiber optic cables.
RS422 Redundant Point to Point Network Diagram
Redundant Star Topology Network
You can network RS-422/RS485 4-wire devices within a star structure as a master/slave network. Depending on the number of star lines required, several PSI-MOS-RS232/FO 850 T Serial to Fiber Converters are connected to TBUS DIN Rail bus systems for voltage and data. This makes up to 20 fiber optic ports available. Cross-wiring for serial data and the supply voltage is provided automatically by the DIN rail connector.
RS422 Redundant Star Network Diagram
Linear Networks
The fiber optic linear structure can be used to network several RS-422/RS-485 4 wire devices to form a master/slave structure. In this case, it must be possible to address all the serial devices via communication software. PSI-MOS-RS422/FO 850 E serial to fiber converters are used at the beginning and end of the fiber optic line. PSI-MOS-RS422/FO 850 T serial to fiber converters with two fiber optic ports are used along the line. You can use up to ten PSI-MOS-RS2422/FO devices along the line in a linear structure. The cascadability of the fiber optic devices is limited by the data rate.

Data Rate   Number of devices  
  ≤ 115.2 kbps   15
  ≤ 187.5 kbps 7
  ≤ 375 kbps 5
  ≤ 500 kbps 3
  ≤ 2000 kbps 2

RS422 Linear Network Diagram

 
INTERBUS Networks
PSI-MOS-RS422/FO 850 E converters also allow you to create INTERBUS networks with FO technology. For standard INTERBUS connections, the REMOTE IN and REMOTE OUT interfaces are converted to fiber optics using one PSI-MOS-RS422/FO 850 T terminal device each. This set-up provides redundant fiber optic connections.
Redundant Interbus Network Diagram

 
Block Diagram

PSI-MOS-RS422/FO 850 T Block Diagram

 



PSI-MOS-RS422/FO 850 T Technical Specifications


Ambient conditions
Ambient temperature (operation) -20 °C ... 60 °C
Ambient temperature (storage/transport) -40 °C ... 85 °C
Permissible humidity (operation) 30 % ... 95 % (non-condensing)
Altitude 5000 m (For restrictions see manufacturer“s declaration)
Degree of protection IP20
Noise immunity EN 61000-6-2:2005
Standards and Regulations
Electromagnetic compatibility Conformance with EMC Directive 2014/30/EU
Type of test Vibration resistance in acc. with EN 60068-2-6/IEC 60068-2-6
Test result 5g, 10-150 Hz, 2.5 h, in XYZ direction
Type of test Shock in acc. with EN 60068-2-27/IEC 60068-2-27
Test result 15g, 11 ms period, half-sine shock pulse
Shock 15g in all directions in acc. with IEC 60068-2-27
Noise emission EN 55011
Noise immunity EN 61000-6-2:2005
Connection in acc. with standard CUL
Standards/regulations EN 61000-4-2
EN 61000-4-3
EN 61000-4-4
EN 61000-4-5
EN 61000-4-6
Vibration (operation) In acc. with IEC 60068-2-6: 5g, 150 Hz
Conformance CE-compliant
ATEX II 3 G Ex nA nC IIC T4 Gc X
II (2) G [Ex op is Gb] IIC (PTB 06 ATEX 2042 U)
II (2) D [Ex op is Db] IIIC (PTB 06 ATEX 2042 U)
UL, USA/Canada 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
Optical interface FO
Number of FO ports 2
Transmit capacity, minimum -4.6 dBm (200/230 µm)
-17.6 dBm (50/125 µm)
-13.6 dBm (62,5/125 µm)
Minimum receiver sensitivity -33.2 dBm
Wavelength 850 nm
Transmission length incl. 3 dB system reserve 2800 m (With F-K 200/230 10 dB/km with quick mounting connector)
4200 m (with F-G 50/125 2.5 dB/km)
4800 m (with F-G 62,5/125 3.0 dB/km)
Transmission medium PCF fiber
Multi-mode fiberglass
Transmission protocol Transparent to protocol for RS-422 interface
Connection method B-FOC (duplex ST®)
General
Transmission channels 2 (1/1) RD, TD, full duplex
Bit distortion, input ± 35 % (permitted)
Bit distortion, output < 6.25 %
Electrical isolation VCC // RS-422
Test voltage data interface/power supply 1.5 kVrms (50 Hz, 1 min.)
Electromagnetic compatibility Conformance with EMC Directive 2014/30/EU
Noise emission EN 55011
Net weight 209.58 g
Housing material PA 6.6-FR
Color green
MTBF 178 Years (Telcordia standard, 25°C temperature, 21% operating cycle (5 days a week, 8 hours a day))
26 Years (Telcordia standard, 40°C temperature, 34.25% operating cycle (5 days a week, 12 hours a day))
Conformance CE-compliant
ATEX II 3 G Ex nA nC IIC T4 Gc X (Please follow the special installation instructions in the documentation!)
II (2) G [Ex op is Gb] IIC (PTB 06 ATEX 2042 U) (Please follow the special installation instructions in the documentation!)
II (2) D [Ex op is Db] IIIC (PTB 06 ATEX 2042 U) (Please follow the special installation instructions in the documentation!)
UL, USA/Canada 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
Digital outputs
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
Power supply
Nominal supply voltage 24 V DC (With UL approval)
Supply voltage range 18 V DC ... 30 V DC
Max. current consumption 130 mA
Typical current consumption 120 mA (24 V DC)
Connection method COMBICON plug-in screw terminal block
Serial interface
Interface 1 RS-422 interface in acc. with ITU-T V.11, EIA/TIA-422, DIN 66348-1
Operating mode Full duplex
Connection method Pluggable screw connection
Transmission medium Copper
Transmission length ≤ 1000 m (depending on the data rate, with shielded, twisted data cable)
Termination resistor 220 Ω
100 Ω
220 Ω
Conductor cross section solid min. 0.2 mm²
Conductor cross section solid max. 2.5 mm²
Conductor cross section flexible min. 0.2 mm²
Conductor cross section flexible max. 2.5 mm²
Conductor cross section AWG min. 24
Conductor cross section AWG max. 14
Serial transmission speed ≤ 2 Mbps
Dimensions
Width 35 mm
Height 99 mm
Depth 103 mm

PSI-MOS-RS422/FO 850 T

 
Environmental Product Compliance
China RoHS Environmentally Friendly Use Period = 50
Reach and RoHS Compliant Yes
Approvals
cUL Listed
cULus Listed
UL Listed
ATEX
EAC
DNV
cUL Recognized
cULus Recognized
UL Recognized
Commercial data
Packing unit 1
Weight per piece 248.5 g
Country of origin Germany
Warranty 1 Year
Classifications
eCl@ss 4.0 27230207
eCl@ss 4.1 27230207
eCl@ss 5.0 27230207
eCl@ss 5.1 27230207
eCl@ss 6.0 27230207
eCl@ss 7.0 27230207
eCl@ss 8.0 19179290
eCl@ss 9.0 19179290
ETIM 2.0 EC001423
ETIM 3.0 EC001423
ETIM 4.0 EC001423
ETIM 5.0 EC000310
ETIM 6.0 EC000310
UNSPSC 6.01 30211506
UNSPSC 7.0901 39121008
UNSPSC 11 39121008
UNSPSC 12.01 39121008
UNSPSC 13.2 43222604



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