8
FIGURE 6: Pinout Diagrams for MB122, MB141, and MB101
Date: 2017-12-20-v1
Dwg. No. GA-180-CB2
GA-180 CIRCUIT BOARDS
MB122, MB141, & MB101
SENSOR
4-20mA
OUTPUTS
SENSOR
INPUTS
MB122 (CB-2X2MA)
TWO IN, TWO OUT BOARD
MB141 (CB-THERM)
THERMOCOUPLE BOARD
MB101 (CB-BAT)
BATTERY BOARD
}
}
Normally Closed 1
Common 1
Normally Open 1
Thermocouple Input
To Power Supply
To Battery
HIGH
TEMPERATURE
ALARM
}
*Digital Inputs and 4-20mA outputs must also have
appropriate V– (GND) connection. Relays shall be
wired in either a normally open (NO) or normally
closed (NC) arrangement.
Analog Output
AO1
Analog Output
AO2
Analog Input
AI2
to Horn
Analog Input
AI1
SHIELD
[connect to metal back plate]
SHIELD
[connect to metal back plate]
RED
RED
BLACK
BLACK
RED
RED
BLACK
BLACK
RED
YELLOW
