SECTION 4 - TECHNICAL DATA
TABLE 21 - CABLE DIAGRAM (RS422/RS485)
PIN CONNECTION
1
2
5
3
9
4
5
6
1
6
7
8
LD20598
9
Shell
88
PIN.
NO.
SIGNAL NAME
RDA
RDB
SDA
ERA
SG
CSB
SDB
CSA
ERB
FG
RS-422/RS-485
DIRECTION
Input
Input
Output
Output
Data Terminal Ready A (+)
Input
Output
Input
Output
Data Terminal Ready B (-)
Frame Ground (Common with SG)
FORM 155.31-ICOM2.EN.UL
ISSUE DATE: 12/21/2018
MEANING
Receive Data A (+)
Receive Data B (-)
Send Data A (+)
Signal Ground
Send Possible B (-)
Send Data B (-)
Send Possible A (+)
JOHNSON CONTROLS