42
Taste p/
Universal-
Taste*)
Taste t/
Steueraus-
gang 1*)
Taste q/
Steueraus-
gang 2*)
Taste v/
Steueraus-
gang 3*)
Taste c/
Steueraus-
gang 4*)
– Disconnect the following cables:
Power supply (I); weighing system (K);
weight application mechanism (L); display and control unit (M).
– You can now remove the main PCB.
– Follow these steps in reverse order to install the new PCB.
– The balance must now be programmed (if the PCB installed is not pre-pro-
grammed).
Note: After programming the balance, check the linearity and span.
Pin Assignments
Female Interface Connector:
25 position D-Submini, DB25S, with screw lock hardware for cable gland
Note: 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 assign-
ments against the chart on the right before connecting the cable, and discon-
nect any lines marked “Internally Connected” (e.g., Pin 6). Failure to do so
may damage or even or even completely ruin your balance and/or peripheral
device.
Pin Assignments:
Pin 1: Signal Ground
Pin 2: Data Output (TxD)
Pin 3: Data Input (RxD)
Pin 4: Signal Return (TxD/RxD)
Pin 5: Clear to Send (CTS)
Pin 6: Internally Connected
Pin 7: Internal Ground
Pin 8: Internal Ground
Pin 9: Reset _ IN**)
Pin 10: – 12V
Pin 11: + 12V
Pin 12: Reset_Out**)
Pin 13: + 5V
Pin 14: Internal Ground
Pin 15:
Pin 16:
Pin 17:
Pin 18:
Pin 19:
Pin 20: Data Terminal Ready (DTR)
Pin 21: Supply Voltage Ground “COM”
Pin 22: Not Connected
Pin 23: Not Connected
Pin 24: Supply Voltage Input +15...25V
Pin 25: + 5V
*) = See “Additional Functions” in the Installation and Operating Instructions for information
on changing the pin assignments
**) = Hardware restart
M
L K
I
SAT6856.EPS
AMP25p-v.EPS
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