User's Manual

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Control Connector RS232 - Local Interface
This 8-pin male connector (type: Binder Series 712) is primarily to support local
control of the remote unit via RS232 ASCII interface.
PIN Assignment
1 Not connected (n.c.)
2 RS232 Rx
3 RS232 Tx
4 n.c.
5 GND (RS232)
6 n.c.
7 n.c.
8 n.c.
figure 3-6 RS232 connector table 3-2 RS232 connector, pin assignment
3.2.3. Grounding
Grounding must be carried out. Connect an earth-bonding cable to the grounding
connection provided at the outside of the remote unit (see chapter 3.2.2
Connections). Do not use the grounding connection to connect external devices.
figure 3-7 Grounding bolt with
loosened hex nut
figure 3-8 Grounding bolt, schematic view
After loosening the hex nut, connect the earth-bonding cable between the two
washers as illustrated in the figures above. Then, fasten all parts again with the hex
nut.