39
Pin Assignment Chart
Female Interface Connector:
25-position D-Submini, DB25S, with screw lock hardware for cable gland
Male Connector Required
(recommended):
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 Prewired RS-232 Connecting Cables:
RS-232 cables purchased from other manufacturers often have incorrect pin assignments
for use with Sartorius scales. 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 scale and/or
peripheral device.
Pin Assignment Chart:
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:
Internally Connected
Pin 10:
Not Connected
Pin 11:
Ext. Power Supply Only
for Sartorius Accessories
Connector for Remote Switch
Pin 12:
Reset-Out for Sartorius Accessories*)
Pin 13:
+5 V Output
Pin 14:
Internal Ground (GND)
Pin 15:
Universal Remote 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:
Internally Connected
Pin 23:
Internally Connected
Pin 24:
Not Connected
Pin 25:
+5 V Output
*) = Hardware restart
