Mettler Toledo IND780 Guide D'installation page 44

2.6.1.3.2. COM2 Serial Port
Details for COM2 are provided in Figure 2-32 and Table 2-3.
2-20
METTLER TOLEDO IND780 Installation Guide
Pin Signal
RxD
2
3 GND
4
5
+12V
6
Figure 2-32: COM1 Wiring for RS232
Figure 2-33: COM2 Port Connections
Table 2-3: COM2 Port Connections
Pin Signal Function
1 TxD RS-232 Transmit data
2 RxD RS-232 Receive data
3 GND RS-232 Signal ground
4 TxD+ RS-422/485 Transmit +
5 TxD- RS-422/485 Transmit -
6 RxD+ RS-422/485 Receive +
7 RxD- RS-422/485 Receive -
Function
RS-232 Receive data
RS-232 Signal ground
Not used
+12V Out, <0.5 A
Notes
Jumper to RxD+ for RS-485
Jumper to RxD- for RS-485
Jumper to TxD+ for RS-485
Jumper to TxD- for RS-485
64057253 | 14 | 08/2014