Connecting Weighing Platforms: Combics 2
  Interface PCB for ADC 2*3000e (option A8)
COM1 terminal assignments (applies to all PCBs)  PS/2
1  LOAD_PRINTER  11  Clear to Send (CTS)  21  5 V switched
2  RESET_OUT  12  Data Terminal Ready (DTR)  22  PS2_Data
3:  GND  13  Data Input (RXD)  23  PS2_Timer
4  GND  14  Data Output (TXD)  24  GND
5  5V_OUT  15  GND  31  Not assigned
6  5V switched  16  Universal In  32  Not assigned
7  GND  17  Control Output: “lighter"  33  Not assigned
8  GND  18  Control Output: “equal"  34  Not assigned
9  n.c.  19  Control Output: “heavier"  35  Not assigned
10  LINE_OUT  20  Control Output:  “set"  36  Not assigned
A8 terminal assignments see Combics 1
D  Display and control unit connection
LED (LED connection)
   Interface PCB for RS-232/485 for IS weighing platform  
(option A6/A7)
A6/7
1  CTS  11  TxD/RxD+
2  DTR  12  TxD/RxD-
3  RxD  13  LINE_OUT
4  TxD  14  LINE_OUT
5  GND  15  GND
6  Calibration Lock  16  GND
D  Display and control unit connection
LED (LED connection)
  Interface PCB for ADC 10.000e (option A20)
A20
1  EXC+
2  SENSE+
3  OUT+
4  OUT-
5  SENSE-
6  EXC-
D  Display and control unit connection
LED (LED connection)
   Interface PCB for RS-232/485 for IS weighing platform  
(option A62/A72)
Interface PCB A6/7 and A62/72
1  CTS  11  TxD/RxD+
2  DTR  12  TxD/RxD-
3  RxD  13  LINE_OUT
4  TxD  14  LINE_OUT
5  GND  15  GND
6  Calibration Lock  16  GND
D  Display and control unit connection
LED (LED connection)
Com 1 A62/72
D
LED
Com 1 A20
D
LED
Com 1 A6/7
D
LED
Com 1 A8
D
LED
12  Operating Instructions Combics Indicators
  Getting Started