3onedata 277/B Manual - Halaman 3

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Halaman Cetak

NOTE: SC, ST or FC, for optic fiber interface, SM is look the

NOTE:

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:

MODEL277/B RS-485/422 interface adopt 5 bit terminal block.

RS-485/422:

T+/D+

T+/D+ RS-422 send+/485+(A)

T+/D+

T-/D-

R+

R-

GND

LED

indications:

LED

LED indications:

indications:

Power

Green, Power supply indication

On: power joined; Off: no power connect

RxD

Green light, optic fiber interface receive

RxD

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

Green light, optic fiber interface send

TxD

datum instruct

On: Have data send; Off: no data send

Specifications:

Standards: EIA RS-485,RS-422 standard

Transfer rate: 300~500Kbps, auto test serial signal rate detect signal

Transfer distance: RS-485/422 side: 1.2Km(9600bps)

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

RS-422 send-/485-(B)

RS-422 receive+

RS-422 receive-

Signal ground

speed automatically, zero delay time,

Fiber optic:20,25,40,60,80,100,120km(SM),

Your Serial and Data Communications Expert

2,5 km(MM) optional

Shenzhen 3onedata Technology Co.,Ltd