Figure 22 - 2-Wire 1:1 Connection With User-Created Cable; Table 26 - Cable Diagram (Rs-422/Rs485) - York EX Series Installation, Operation & Maintenance Instructions Manual

FORM 155.32-ICOM1.EN.GB
ISSUE DATE: 10/13/2017

TABLE 26 - CABLE DIAGRAM (RS-422/RS485)

PIN CONNECTION PIN.
NO.
1
2
5 3
9
4
5
6
1
6
7
8
LD20598
9
Shell
2-Wire Type Cable Diagrams
The following is a sample cable diagram for a 2-wire
type connection. It uses a GP4000 series (COM2).

FIGURE 22 - 2-WIRE 1:1 CONNECTION WITH USER-CREATED CABLE

JOHNSON CONTROLS
SIGNAL NAME
RDA Input
RDB Input
SDA Output
ERA Output
SG
CSB Input
SDB Output
CSA Input
ERB Output
FG
RS-422/RS-485
DIRECTION
Receive Data A (+)
Receive Data B (-)
Send Data A (+)
Data Terminal Ready A (+)
Signal Ground
Send Possible B (-)
Send Data B (-)
Send Possible A (+)
Data Terminal Ready B (-)
Frame Ground (Common with SG)
SECTION 4 - TECHNICAL DATA
MEANING
LD20599
LD20599
73
4