York YHAU-CL Series - FIGURE 38 - 2-Wire 1:1 Connection with User-Created Cable; FIGURE 39 - 2-Wire N:1 Connection with User-Created Cable; TABLE 21 - Cable Diagram (RS-422;RS-485)

JOHNSON CONTROLS
85
SECTION 4 - TECHNICAL DATA
FORM 155.30-ICOM2.EN.UL
ISSUE DATE: 12/21/2018
4
TABLE 21 - CABLE DIAGRAM (RS-422/RS-485)
PIN CONNECTION PIN.
NO.
RS-422/RS-485
5
1
9
6
LD20598
SIGNAL NAME DIRECTION MEANING
1 RDA Input Receive Data A (+)
2 RDB Input Receive Data B (-)
3 SDA Output Send Data A (+)
4 ERA Output Data Terminal Ready A (+)
5 SG Signal Ground
6 CSB Input Send Possible B (-)
7 SDB Output Send Data B (-)
8 CSA Input Send Possible A (+)
9 ERB Output Data Terminal Ready B (-)
Shell FG Frame Ground (Common with SG)
2-Wire Type Cable Diagrams
The following is a sample cable diagram for a 2-wire type connection. These use a GP4000 series (COM2).
LD20599
)
RDA
RDB
SDA
SDB
SG
100
Ω
(1/2W
2
3
7
5
4
SG
1
Pin
RDB
SDA
SDB
RDA
9
6
CSA
ERB
CSB
ERA
8
100
(1/2W)
Display
Shield
(Slave)
D-sub 9 pin (socket)
Signal name
External Device
(Master)
Your own cable
Signal name
Termination
resistance
Termination
resistance
Shell
FG
Ω
FIGURE 38 - 2-WIRE 1:1 CONNECTION WITH USER-CREATED CABLE
LD20945
)
RDA
RDB
SDA
SDB
SG
100
Ω
(1/2W
2
3
7
5
4
SG
1
Pin
RDB
SDA
SDB
RDA
9
6
CSA
ERB
CSB
ERA
8
100
Ω
(1/2W)
2
3
7
5
4
SG
1
RDB
SDA
SDB
RDA
9
6
CSA
ERB
CSB
ERA
8
Display
Shield
(Slave)
D-sub 9 pin (socket)
Signal name
External Device
(Master)
Your own cable
Signal name
Termination
resistance
Termination
resistance
Signal name
(Slave)
D-sub 9 pin (socket)
Shield
Shell
FG
Shell
FG
Pin
FIGURE 39 - 2-WIRE N:1 CONNECTION WITH USER-CREATED CABLE