3One data FL485 User manual

1
FL485
Surge Protection Devices For Twisted-Pairs System
The transmission performance is superior, the insertion loss is small, and there is no network drop phenomenon
caused by ground fault, which can effectively eliminate various interferences caused by the common ground
transmission signal
The excellent lightning protection performance, built-in multi-level surge protection, large surge capacity,
high-speed response (nanosecond level), low residual voltage level, chip-level protection for the protected
equipment, small size, easy wiring, installation convenience
The internal equipotential design of the lightning arrester can effectively prevent equipment damage caused by
the instantaneous increase of the potential difference between the lines and the lines or between the lines and
the ground

1
Introduction
FL485 RS-485 surge protection devices is designed according to IEC61643-21 and GB/T
18802.21 standards. It adopts multi-level protection circuit and TDK-EPCOS high-speed
surge protective parts. It has fast response speed, low output residual voltage and low
capacitance design , transmission performance is superior. This product is suitable for
surge protection of twisted-pairs system, such as RS-485, RS-422, CAN bus, Profibus etc.
It effectively suppresses high voltage and high current pulses induced in the line and
protects the back-end equipment from lightning and industrial surge. This product is made
of aluminum alloy shielded metal casing, has good sealing performance, and has dustproof
and anti-corrosion function. It is connected in series and installed between the protected
equipment and the outer line.
Dimension
Unit:mm
Specification
Nominal operating voltage / Un 5V
Maximum continuous operating voltage / Uc 6V
Nominal discharge current / In(8/20us) 500A(Line-line), 3000A(Line-ground)
Maximum discharge current / Imax(8/20us) 1000A(Line-line), 5000A(Line-ground)
Voltage protection level / Up(1.2/50us) <30V(Line-line), <600V(Line-ground)
Impulse withstand voltage (10/700us) 6000V(Line-line, Line-ground)

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Insertion loss ≤0.5dB
Number of protection lines 2 lines
Transmission rate 0-10Mbps
Interface type 3Pin 5.08 terminal blocks
Degree of protection IP20
Response time ≤10ns
Working temperature -20℃~+60℃
Dimensions 73*25*25 (±1) mm
Net Weight / Gross weight 49 / 67 (±5) g
Certification CE, FCC, RoHS
Warranty
1 year

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Ordering Information
Available Models RS-485 (Input) RS-485 (Output) Power Supply
FL485 1 1 No
Address: 3/B, Zone 1, Baiwangxin High Technology Industrial Park, Song Bai Road,
Nanshan District, Shenzhen, 518108, China
TEL.: [phone] ext 835 FAX: [phone]
E-mail: [email protected]
Website: www.3onedata.com
Please scan our QR code for more details
*Product pictures and technical data in this datasheet are only for reference. Updates are subject to change
without prior notice. The final interpretation right is reserved by 3onedata.

FL485
Surge Protection Devices For
Twisted-Pairs System
Quick Installation Guide
3onedata Co., Ltd.
Address: 3/B, Zone 1, Baiwangxin High Technology
Industrial Park, Xili, Nanshan District, Shenzhen
Website: www.3onedata.com
Tel: [phone]
Fax: [phone]
【Package Checklist】
Please check whether the package and accessories are intact
while using the device for the first time.
1
Surge protection device
2
Quick installation guide
3
Certification
4
Warranty card
If any of these items are damaged or lost, please contact our
company or dealers, we will solve it ASAP.
【Product Overview】
The product is RS-485 surge protection device. Model is:
FL485 (1 RS-485 input +1 RS-485 output).
【Mounting Dimension】
Unit: mm
Note before mounting:
Dont place or install the device in area near water or
moist, keep the relative humidity of the device
surrounding between 5%~95% without condensation.
Before power on, first confirm the supported power
supply specification to avoid over-voltage damaging the
device.
The device surface temperature is high after running;
please dont directly contact to avoid scalding.
【The Method of Maintenance】
This product is connected in series. The surge protection
device is installed in the front end of the protected
equipment. The “IN” of the surge protection device is the
input side, and the “OUT” is the output side. That is, the
external signal cable is connected to the “IN (Line)” end
of the surge protection device, The protected device is
connected to the “OUT (Equip)” end of the surge
protection device;
The length of the connection line between the protected
equipment and the surge protection device should not
exceed 0.5 meters, it is better that the surge protection
device is closer to the protected equipment;
The PE line of the surge protection device is connected
to the equipotential bonding terminal of the protected
device first, and then reliably connected with the
grounding network of the lightning protection system.
The connection line is required to be short, thick and
straight;
The components in the surge protection device are
strictly tested. Normally, no special maintenance is
required. The surge protection device should be
regularly tested during use. Remove the surge protection
device during fault detection. The resistance between
the input and output should be ≤11Ω, and the
resistance between the core line and ground should be
≥10ΜΩ.If there is a fault, it should be repaired or
replaced in time to ensure the safety of the equipment.
【Specification】
Specifications
Nominal operating voltage / Un
5V
Maximum continuous operating
voltage / Uc
6V
Nominal discharge current /
In(8/20us)
500A(Line-line),
3000A(Line-ground)
Maximum discharge current /
Imax(8/20us)
1000A(Line-line),
5000A(Line-ground)
Voltage protection level /
Up(1.2/50us)
<30V(Line-line),
<600V(Line-ground)
Impulse withstand voltage
(10/700us)
6000V(Line-line,
Line-ground)
Insertion loss
≤
0.5dB
Number of protection lines
2 lines
Transmission rate
0-10Mbps
Interface type 3Pin 5.08 terminal
blocks
Degree of protection IP20
Response time
≤10ns
Working temperature
-20℃~+60℃
Dimensions
73
*
25
*
25 (±1) mm
Net Weight / Gross weight 49 / 67 (±5) g