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Brand Name : UTOPTEK
Model Number : UT168SM-SC20
Certification : CE FCC RoHs
Place of Origin : China
MOQ : 1pair
Payment Terms : Western Union, T/T, Paypal, Alipay
Delivery Time : 3-5Working days
Interface : RS485/422/232 serial port, 1Fiber port
Bit Rate : 0-120Kbps
Fiber Connector : SC/FC/ST optional
Fiber Type : SM or MM, Single fiber or Dual fiber optional
Fiber Distance : MM (2KM); SM (20km Default)
Power input : 9V~36V DC
Working Temperature : 0℃ to 60℃
Size : 100mm*69mm*22mm
Power supply : DC12V 1A
Warranty : 1 year
UT168SM-SC20
RS-232/485/422 Serial to Fiber Converter Single mode dual fiber SC 20km 1310nm
(FC/SC/ST Connector optional )

1. Overview
Model UT168 series 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~36V 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
| RS232 to fiber series | UT218MM-SC2 | RS232 to Fiber, Dual Fiber, MM 1310nm , 2KM, SC | 
| UT218SM-SC20 | RS232 to Fiber, Dual Fiber, SM 1310nm , 20KM, SC | |
| UT218SM-SC20A | RS232 to Fiber, Single Fiber, SM Tx1310nm/RX1550nm, 20KM, SC | |
| UT218SM-SC20B | RS232 to Fiber, Single Fiber, SM Tx1550nm/RX1310nm, 20KM, SC | |
| RS485/422 to fiber series | UT268MM-SC2 | RS485/422 to Fiber, Dual Fiber, MM 1310nm , 2KM, SC | 
| UT268SM-SC20 | RS485/422 to Fiber, Dual Fiber, SM 1310nm , 20KM, SC | |
| UT268SM-SC20A | RS485/422 to Fiber, Single Fiber, SM Tx1310nm/RX1550nm, 20KM, SC | |
| UT268SM-SC20B | RS485/422 to Fiber, Single Fiber, SM Tx1550nm/RX1310nm, 20KM, SC | |
| RS485/422/232 to fiber series | UT168MM-SC2 | RS485/422/232 to Fiber, Dual Fiber, MM 1310nm , 2KM, SC | 
| UT168SM-SC20 | RS485/422/232 to Fiber, Dual Fiber, SM 1310nm , 20KM, SC | |
| UT168SM-SC20A | RS485/422/232 to Fiber, Single Fiber, SM Tx1310nm/RX1550nm, 20KM, SC | |
| UT168SM-SC20B | RS485/422/232 to Fiber, Single Fiber, SM Tx1550nm/RX1310nm, 20KM, SC | 
(Remark: ST/SC/FC Fiber connector Optional; optical distance:20/40/60/80km optional)
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