Pin Assignment Chart
Female Interface Connector:
25-position D-submini, DB25S, with screw lock hardware for cable gland
Male Connector Used: (please use connectors with the same specifications)
25-pin D-submini, DB25S, with integrated shielded cable clamp assembly
(Amp type 826 985-1C) and fastening screws (Amp type 164 868-1)
!
Warning When Using Pre-wired RS-232 Connecting Cables!
RS-232 cables purchased from other manufacturers often have incorrect
pin assignments for use with Sartorius balances. Be sure to check the
pin assignment against the chart below before connecting the
cable, and disconnect any lines marked “Internally Connected” (e.g.,
pin 6). Failure to do so may damage or even completely ruin your
balance and/or peripheral device.
Pin Assignment:
Pin 1: Signal Ground
Pin 2: Data Output (TxD)
Pin 3: Data Input (RxD)
Pin 4: Internal Ground (GND)
Pin 5: Clear to Send (CTS)
Pin 6: Internally Connected
Pin 7: Internal Ground (GND)
Pin 8: Internal Ground (GND)
Pin 9: Reset
_
In*)
Pin 10: Not Connected
Pin 11: +12 V
Pin 12: Reset
_
Out*) Connection for a switch
Pin 13: +5 V
Pin 14: Internal Ground (GND)
Pin 15: Universal Switch
Pin 16: Not Connected
Pin 17: Not Connected
Pin 18: Not Connected
Pin 19: Not Connected
Pin 20: Data Terminal Ready (DTR)
Pin 21: Internal Ground (GND)
Pin 22: Not Connected
Pin 23: Not Connected
Pin 24: Not Connected
Pin 25: +5 V
*) = hardware restart
66
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