Complaint
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: 0ºC to 60ºC
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
| Model No. | Specification |
| UT-277MM-C2 | RS232/485/422 TO FIBER,Multimode dual fiber,2KM,SC |
| UT-277SM-C20 | RS232/485/422 TO FIBER,Single mode dual fiber,20KM,SC |
| UT-277SM-C40 | RS232/485/422 TO FIBER,Single mode dual fiber,40KM,SC |
| UT-277SM-C20A/B | RS232/485/422 TO FIBER,Single mode single fiber,20KM,SC |
| UT-277SM-C40A/B | RS232/485/422 TO FIBER,Single mode single fiber,40KM,SC |
Q1 . What's your MOQ?
A1 .1 pc/pair is ok, we don't have MOQ limited.
Q2.What certification did you get?
A2 : Our products passed the CE,FCC,ROHS and SGS test, you can trust our quality very good.
Q3 :What about your delivery time?
A3:For small sample QTY,we have in stock, need 1day.
For QTY 200-500, usually will take 2-3working days. for big QTY pls contact our sales about details.
Q4.What your common shipping method?
A4:By air, by sea or express(DHL,Fedex,UPS,TNT,EMS...), We will make a perfect delivery plan for you.
Q5.How about your product warranty time?
A5:Our products have 1/3/5years warranty for different product series.
Q6. How to handle quality issues with your product?
We give you the promise if any question during 1 year and not cause by human factors, we will fix it.
