https://www.phoenixcontact.com/pi/products/2708355

09/12/2020   Page 3 / 17

FO converters - PSI-MOS-RS422/FO 850 E - 2708355

Technical data

Interfaces

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

Optical interface FO

No. of channels

1

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 8 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

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

Conformance/approvals

Designation

CE

Identification

CE-compliant

Designation

EAC

Identification

EAC

Designation

ATEX

Identification

 II 3 G Ex nA nC IIC T4 Gc X

Additional text

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

Additional text

Please follow the special installation instructions in the documentation!

Designation

UL, USA/Canada