Pin Assignment Chart 
  Models CAISL1 and CAISL2 (IP44 protection) 
  COM1 female connectors:
25-pin D-Submini female connector (DB25S) with screw lock hardware for cable 
gland 
Recommended interface connector:
25-pin D-Submini (DB25) with shielded cable clamp assembly and shield plate 
(Amp type 826 985-1C) and fastening screws (Amp type 164868-1) 
COM1 pin assignments
Pin   1:  Shield
Pin   2:  Data output (TxD)
Pin   3:  Data input (RxD)
Pin   4:  GND
Pin   5:  Clear to send (CTS)
Pin   6:  Not assigned
Pin  7:  Internal ground (GND)
Pin  8:  Internal ground (GND)
Pin   9:  Not assigned
Pin   10:  Not assigned
Pin   11:  +12V for printer
Pin   12:  RES_OUT\
Pin   13:  +5V Switch
Pin   14:  Internal ground (GND)
Pin  15:  Universal switch
Pin  16:  Control output: “lighter"
Pin   17:  Control output: “equal"
Pin   18:  Control output: “heavier"
Pin   19:  Control output: “set”
Pin   20:  Data terminal ready (DTR)
Pin   21:  Ground power supply (GND)
Pin   22:  Not assigned
Pin  23:  Not assigned
Pin  24:    Power supply +15 to 25V  (peripherals)
Pin  25:  +5V
3
1
4
2
6
5
  PS/2 socket pin assignment on Combics 2
Pin 1: Keyboard data (data interface cable)
Pin 2: Not assigned
Pin 3: GND (ground)
Pin 4: 5V switched
Pin 5: Keyboard clock
Pin 6: Not assigned
Connecting an IS Weighing Platform to a Combics 2
You can connect an IS weighing platform to WP2.
  Features  –   IS weighing platforms process weighing data independently of the indicator.
    –  Internal calibration/adjustment option
 –   IS...-0CE models: have a separate approval number, printed on a tag that is 
affixed to the cable.
 –   Please observe the conditions described in the manual for the weighing 
platform you connect.
  Operating Instructions Combics Indicators  13
  Getting Started