
JOHNSON CONTROLS
28
FORM 450.50-N1
ISSUE DATE: 08/19/2019
SECTION 2 - INSTALLATION
LD20012
COM 1
COM 2
Jumper
SHIELD
VGA
PL20 COM 1
Jumpers
Frick RWBII Plus
Jumpers
Jumpers
+RX
BLACK
RED
BLACK
RED
P4
I/O COM DC Power
Temp Sensor
P3
Keypad
P6
Keyboard
F1
P1
640D0061H01
BAT
DP1
1
8
Open
P2
DIAG
J64
J90 J89 P12
Floppy DRV
P11
P10
Hard DRV
1-
2+
3
4
5
6
7
8
(Open)
GRD
SC-EQ
EQ 485 Port J8
+
-
CO
M
SHLD
P6
P5
DISP
P4
INV
VR1
P3
KYPD
P2
DC
POW
HEAT SINK
Frick Q2 Board
Frick Q3 Board
PL18
P12
PL7
PL7
8
1
BAT
FLASH
MEMORY
SOCKET
COM1
P1
COM2
RS232
LK19
COM3
Equipment Cable
York Talk 2
RS485
(4800 baud)
SHIELD
BLACK
RED
BLACK
RED
(Open)
GRD
SC-EQ
EQ 485 Port J8
+
-
CO
M
SHLD
Equipment Cable
York Talk 2
RS485
(4800 baud)
Note: Requires ISN EPROMs in locations U4 and U5.
The transfer rate on the chiller must be set to 4800 baud.
Port 2
Port 1
U5
U4
Equipment Cable
York Talk 2
RS485
(4800 baud)
Connect to Port 1 (5 Pin Connector)
RWBII Rev. C and Higher
Equipment Cable
York Talk 2
RS485
(4800 baud)
Connect to Port 1 (9 Pin Connector)
RWBII Rev. B and Lower
+RX
-RX
+TX
-RX
GND
4
5
8
9
3
1
6
2
7
SHIELD
BLACK
RED
BLACK
RED
(Open)
GRD
SC-EQ
EQ 485 Port J8
+
-
CO
M
SHLD
SHIELD
BLACK
RED
BLACK
RED
(Open)
GRD
SC-EQ
EQ 485 Port J8
+
-
CO
M
SHLD
Jumpers
FIGURE 31 -
SC-EQ COMM CARD TO YORKTALK II EQUIPMENT CONNECTIONS
NOTE:
Summary of Contents for York Smart Equipment SC-EQ
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