Your Serial and Data Communications Expert
Shenzhen 3onedata Technology Co.,Ltd
NOTE:
NOTE:
NOTE:
NOTE:
SC, ST or FC, for optic fiber interface, SM is look the
same to MM for form. For example,Model277 SM/B/SC,the optic
fiber interface(SC)
is look the same to Model277 MM/B/SC.
RS-485/422:
RS-485/422:
RS-485/422:
RS-485/422:
MODEL277/B RS-485/422 interface adopt 5 bit terminal block.
RS-485/422:
RS-485/422:
RS-485/422:
RS-485/422:
T+/D+
T+/D+
T+/D+
T+/D+
RS-422 send+/485+(A)
T-/D-
T-/D-
T-/D-
T-/D-
RS-422 send-/485-(B)
R+
R+
R+
R+
RS-422
R-
R-
R-
R-
RS-422 receive-
GND
GND
GND
GND
Signal ground
LED
LED
LED
LED
indications:
indications:
indications:
indications:
Specifications:
Specifications:
Specifications:
Specifications:
Standards: EIA RS-485,RS-422 standard
Transfer rate: 300~500Kbps, auto test serial signal rate detect signal
speed automatically, zero delay time,
Transfer distance: RS-485/422 side: 1.2Km(9600bps)
Fiber optic:20,25,40,60,80,100,120km(SM),
2,5 km(MM) optional
Fiber connector: 2
×
SC, 2
×
ST, 2
×
FC optional
Wavelength:1310nm
Fiber optic cables:Single Mode:8.3/125,8.7/125,9/125 or 10/125 um
Power
Power
Power
Power
Green, Power supply indication
On: power joined; Off: no power connect
RxD
RxD
RxD
RxD
Green light, optic fiber interface receive
data point out and concurrently mere port
report an emergency and ask for help or
increased vigilance, on: There are data that
are received; Off:
Have data receive
TxD
TxD
TxD
TxD
Green light, optic fiber interface send
datum instruct
On: Have data send; Off: no data send
