GE RS-485 Two-Wire Communication Guide for HE500TIU050 and HE500TIU112C-002

CH. 6: COMMUNICATIONS	06 Apr 2000	PAGE 33
		GFK-1819

6.5RS-485 Two-Wire

TIU110/100

R S 4 22 /48 5 (2 -w ire )

R S4 22/485 R S 232

Tx+ 2

Tx - 3

Rx+ 4

Rx- 5

TxD 6

0V 7

RxD 8

AE

Tx/Rx+

Tx/Rx-

CO M

0.1uF Ceramic

TIU050/101/102/103/111/112/113/20X

R S 4 22 /48 5 (2 -w ire )

R S 422 /48 5 R S 23 2

Tx+	1
Tx -	2
Rx+	3
Rx-	4
TxD	5
0V	6
RxD	7

AE

Tx/Rx+

Tx/Rx-

CO M

0.1uF Ceramic

Figure 6.3 – RS-485 Two-Wire