7
FIGURE 5: Pinout Diagrams for MB108 and MB123
Date: July 2016
Dwg. No. GA-180-CB1
GA-180 CIRCUIT BOARDS
MB108 & MB123
Normally Closed 8
Common 8
Normally Open 8
Normally Closed 7
Common 7
Normally Open 7
Normally Closed 6
Common 6
Normally Open 6
Normally Closed 5
Common 5
Normally Open 5
Normally Closed 4
Common 4
Normally Open 4
Normally Closed 3
Common 3
Normally Open 3
Normally Closed 2
Common 2
Normally Open 2
Normally Closed 1
Common 1
Normally Open 1
V+
V–
RELAY 8
RELAY 7
RELAY 6
RELAY 5
RELAY 4
RELAY 3
RELAY 2
RELAY 1
MB108 (CB-8RELAY)
EIGHT RELAY BOARD
}
}
}
}
}
}
}
}
Normally Closed 2
Common 2
Normally Open 2
Normally Closed 1
Common 1
Normally Open 1
*Digital Input 1 (Remote Acknowledge)
RELAY 34
RELAY 33
MB123 (CB-2RELAY)
TWO RELAY BOARD
}
}
*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.
