ASYNC 232422/485 CONVERTER

negativeagain5. Connectmaking. thecarefulother pairnoteofofwireswhichtoRCV+colorisandpositive,RCV-andonthewhichterminalcolorisblock,

Ultimately,connectionno regardingyouwithwillthe“flippingwantRS-to485devicetheconstructl ads”)as. showntwo-pairbelowcrossover.cablethatmakes

 

 

NOTE

 

 

 

 

Posi ve and negative are relative terms

d may not alw

ys have the

 

s me relat ons

ip for all RS-422 or RS-485 devices (see the previous

 

XMT+

 

 

RCVA

Onepair

 

Converter

 

 

RS-485 Device

 

 

 

XMT-

 

 

RCVB

 

 

 

 

 

 

 

 

 

G

To Shield (Optional)

G

Onepair

 

 

RCV-

 

 

 

XMTB

 

 

 

 

 

 

RCV+

 

 

XMTA

 

 

 

 

 

 

 

6.connecting“G”Ifthere isterminaltheshieldblockaroundatthe.Tocomputertheavoidtwistedgroundend-paironlyloops,cable,it.wemayrecommenectedbe n

 

to

 

 

IMPORTANT!

 

 

 

 

If you are not using

wo IC476A-X-R2s back to back and the proce ure on

 

previous p

ge p

duces garba

ata (or none at all), flip the “A” and

 

“B” leads at o

end

f the 485 conn

ction.

 

 

 

 

A ground wire is not necessary

for proper operation of the Conver er.

should7. Whenyoufinishconnectingresemblethediagramatthewirestopoftothethenextterminalpage.block,theassembly

16

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Image 17
Black Box IC478A-M-R2, IC477A-F-R2, IC476A-F-R2, IC477A-M-R2, IC476A-M-R2, IC478A-F-R2 manual Converter RS-485 Device