FIB-P485-S
PROFIBUS RS485 to single-mode fiber converters manual
The distance and speed of optical fiber transmission aren’t
related. Serial-interface fiber transmission resolves the
contradiction of copper transmission’s long-distance and high-speed
communications because of it’s advantages such as high reliability,
security and confidentiality and so on. The use of fiber as
communication transmission medium completely solves the problems
such as electromagnetic interference, ground loop interference and
lightning damage.
It has been used more and more in industrial automation,
distributed data acquisition, intelligent transportation,
electricity, water, banking and many other areas and become the
preferred option for communications transmission.
FIB-P485-S is an industrial grade PROFIBUS-DP to fiber converter of
Fourstar, replacing Siemens OLM fiber converter module. It achieves
PROFIBUS-DP signal’s transparent transmission on fiber, without
changing the original communication protocols and software, plug
and play, and directly replace copper conductor transmission. This
product is based on binary diqit transparent transmission of data,
thus more suitable for the communication protocol whose physical
interface is RS485.
Product characteristics and major technical indicators
voltage: 9 ~ 40 VDC wide-voltage power supply or 5 VDC power supply
optional, isolate signal interface with external power within the
product through DC / DC isolation module. Power consumption: <1
W
interface: RS485 physical interface, two pairs of A, B
wiring-terminal, built-in anti-lightning and anti-surge protection,
repeatable capacity of surge: Ipp = 100A (10/700us, 4KV),standards:
ITU-TK20/21, VDE 0433.15KV ESD (electrostatic) protection to the
resumption of overcurrent protection, RS485 port can endure the
sustained over-current caused by 60 V voltage
communication rate: 0～5Mbps adaptive
applicable fiber: single-mode 9/125、10/125、8.3/125um
wavelength: 1310 nm
power of launched light: -6 dBm
receiving sensitivity: -22 dBm
transmission distance: 0 ~ 12km
(Maximum to 60 km or 120 km,a statement is needed, with the
standard FC connector)
fiber interface: standard ST connector, SC and FC connector
optional
temperature: -40 ~ +85
Relative Humidity: 0 to 95 percent (not condensed)
Dimensions: 855525 (LWH), the standard rails installation with
bolts hole
Weight: 100 g
The structure and shape of products:
The signal rank of PROFIBUS RS485 connection terminal
Signal-name of terminal | description |
A | RS485 signal is negativeconnect with other terminal A |
B | RS485 signal is positiveconnect with other terminal B |
A | RS485 signal is negativeconnect with other terminal A |
B | RS485 signal is positiveconnect with other terminal B |
SG | RS485 signal ground |
FG | Shielding ground（chassis） |
PWRpowerredalways shine
TXDdata sendingyellowtwinkle when sending data to fiber
RXDdata receivinggreentwinkle when receiving data from fiber
FIBredbe lighten when the fiber is broken
There is a LED indicator FIB besides the fiber connector Rx. When
the fiber is broken, the fiber is not connected or the opposite
party’s fiber converters is off, FIB will be lit by receiving the
matt signal, witch is very convenient to judge where the fault is.
Terminal resistance switch: OFF ---- no termination resistor, R
---- with 220 Ohm terminal resistance and 390 Ohm biasing resistor.
Rate selection switch: 1M <---turn to this location when rate is
greater than 1 Mbps, <1 M --- turn to this location when rate is
less than 1 Mbps
External power: the right terminal is a two-group external power
terminal, one is 9 ~ 40 VDC wide-voltage, and the other is 5 VDC
fixed voltage. Any one of them is ok. You needn’t to worry about
the power fluctuations. Isolating PROFIBUS RS485 signal with
external power within the product through DC / DC isolation module.
Thus the power supply can be taken from any power terminals of
equipment or powers of different equipments, to avoid the ground
loop interference caused by the of external power and PROFIBUS
RS485 signal and generate the safety of equipment.
Connection of PROFIBUS RS485 signal
Two pairs of A,B wiring-terminal are designed for this product’s PROFIBUS RS485 port, witch can be used to e
