Frymaster H55 Series Technical Reference Manual page 122

Circuit Board Pin Outs
SIB (Smart Interface Board) Pin Positions and Harnesses
NOTE: DO NOT CHECK WITH HARNESSES UNPLUGGED (except ATO and Temp Probes) AS SHORTING THE PINS MAY OCCUR WHICH WILL
DAMAGE THE BOARD.
Connector
From Transformer
To High Limit
From High Limit
To Latch Contactor
To Heat Contactor
To Hood Relay
J1
Left SIB Jumper
Left SIB Jumper
J2
J3 ATO Probe
J6 Controller
C-Bus Harness
J7
C-Bus Harness or
J8 Network Resistor
(pins 2 & 3)
P-Bus Power Communication
J9
from SIB to VIB or between SIB's
P-Bus Power Communication
J10 from SIB to VIB or between SIB's
J11 Cooking Probe
Touchscreen-Equipped Fryers
From/To Harness #
8075951 Full or
Right of Split
8075952 Left
Not Used
8075549 or
8075549 or
8075551 or
(8075632
Resistor)
RJ11
RJ11
Pin
#
1 24VAC Input
2 Ground -
3 24VAC Out
Split
4 24VAC Input
7 24VAC Out
8 24VAC Out
9 12VDC Out
10
11
14
16
17 Ground -
18 5VDC Out
20
1 Ground
8263286 2 RTD
3
1 C-BUS +
2 C-BUS -
3 5VDC
4 RS485 -
5 RS485 +
6 Signal Ground
7 12VDC
8 Signal Ground
1 5VDC+
2 CAN High
8075551 3 CAN Low
4 Ground
1 5VDC+
2 CAN High
3 CAN Low
4 Ground
1 Ground
2 P-BUS power
3 Modbus RS485 B
8075553
4 Modbus RS485 A
5 Signal ground
6 P-BUS power
1 Ground
2 P-BUS power
3 Modbus RS485 B
8075555
4 Modbus RS485 A
5 Signal ground
6 P-BUS power
1 Ground
8263450
2 Probe
5-19
Function Voltage
24VAC
24VAC
24VAC
24VAC
24VAC
12VDC
5VDC
5VDC
5VDC
5VDC
5VDC
5VDC
12VDC
+5VDC
+5VDC
+5VDC
+12VDC
+5VDC
+12VDC
Wire
Color
Orange
Blue
Orange
Blue
Orange
Orange
Yellow
Yellow
Brown
Blue
Blue
Black
Black
Orange
Yellow
Red
Yellow
Red