RS485/422/232 to Fiber Modem, RS232/422 Rs485 over Fiber Converter for alarm system using

Brand Name:UTOPTEK
Certification:CE FCC RoHs
Model Number:UT168-S20AB
Minimum Order Quantity:1pair
Delivery Time:3-5Working days
Payment Terms:Western Union, T/T, Paypal, Alipay
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Location: Shenzhen Guangdong China
Address: No. 10-1, Lane 7, Xuewuxin Village, Jinsha Community, Kengzi Street, Pingshan District, Shenzhen, Guangdong, China
Supplier`s last login times: within 26 hours
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Product Details

UT168SM-C20

RS-232/485/422 Serial to Fiber Converter Single mode dual fiber SC 20km (FC/SC/ST Connector optional )


1. Overview

Model 168 is a sort of more function and economy RS-232/485/422 interface optic fiber MODEM. It is the best choice to connect RTU to HOST or SCADA controller. It used Optic fiber as transfer medium, increase the transfer function of system. Communication equipment abstain menace effective to lightning strike, surge, electromagnetism disturb under the scurviness environment.


2. Function and Characteristic

a) Support RS-232/RS-485/RS-422 interface

b) Asynchronous, point to point, rate up to 120Kbps

c) Support 9V~40V DC Volt input, consumption 2W

d) 1500W surge protection, 15KV static protection

e) RS-485/422 port support 32 node ( can choice hand-tailor 128 Node)

f) Working wavelength: 1310nm

g) Auto test signal rate, zero delay auto transmit


3. Performance guideline

Interface: support EIARS-232, 485, 422 standard

Rate: 0-500Kbps

Transmit distance: RS-232 port 15m, RS-485/422 port 1500m, optical port multi-mode 2KM, single-mode 20KM

Working environment: 0℃ to 60℃


4. Appearance guideline

Interface type: 8 bit terminal block, multi-mode choice ST/SC/FC interface, single-mode choice FC/SC/ST interface

L*W*H: 100mm*69mm*22mm

Shell: Iron

Color: White

Weight: 230g


5. Pin define

Power interface

GND --------- Ground

DCIN --------- 9-40V input

Optical fiber interface

IN --------- Optical fiber input

OUT --------- Optical fiber output

RS-485/422 port

T+/D+ --------- RS-422 Send +/ RS-485 +

T-/D- --------- RS-422 Send -/ RS-485-

R+ --------- RS-422 Received +

R- -------- RS-422 Received –

GND --------- Ground

RS-232 port

IN --------- RS-232 input

OUT --------- RS-232 output

GND --------- Ground


6. Indicator light explain

Power: Power indication

RxD: Optical fiber interface receive indication

TxD: Optical fiber interface send indication


  • Order Information
RS232 to fiber seriesUT218MM-S2RS232 to Fiber, Dual Fiber, MM 1310nm , 2KM, SC
UT218SM-S20RS232 to Fiber, Dual Fiber, SM 1310nm , 20KM, SC
UT218SM-S20ARS232 to Fiber, Single Fiber, SM Tx1310nm/RX1550nm, 20KM, SC
UT218SM-S20BRS232 to Fiber, Single Fiber, SM Tx1550nm/RX1310nm, 20KM, SC
RS485/422 to fiber seriesUT268MM-S2RS485/422 to Fiber, Dual Fiber, MM 1310nm , 2KM, SC
UT268SM-S20RS485/422 to Fiber, Dual Fiber, SM 1310nm , 20KM, SC
UT268SM-S20ARS485/422 to Fiber, Single Fiber, SM Tx1310nm/RX1550nm, 20KM, SC
UT268SM-S20BRS485/422 to Fiber, Single Fiber, SM Tx1550nm/RX1310nm, 20KM, SC
RS485/422/232 to fiber seriesUT168MM-S2RS485/422/232 to Fiber, Dual Fiber, MM 1310nm , 2KM, SC
UT168SM-S20RS485/422/232 to Fiber, Dual Fiber, SM 1310nm , 20KM, SC
UT168SM-S20ARS485/422/232 to Fiber, Single Fiber, SM Tx1310nm/RX1550nm, 20KM, SC
UT168SM-S20BRS485/422/232 to Fiber, Single Fiber, SM Tx1550nm/RX1310nm, 20KM, SC

(Remark: ST/SC/FC Fiber connector Optional; optical distance:20/40/60/80km optional)


China RS485/422/232 to Fiber Modem, RS232/422 Rs485 over Fiber Converter for alarm system using supplier

RS485/422/232 to Fiber Modem, RS232/422 Rs485 over Fiber Converter for alarm system using

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