Unpacking and Installation, TWTA Octagon CPU
MNC-0300-003 17 of 22 Revision N
Figure 11, RF Inhibit with Switch A Open
Serial Interface Ports (J1-A to J1-R)
Dual serial interface connectors (COM1 and COM2) are
available for remote control operation. Both serial interface ports
are always enabled. The amplifier will respond to commands
from either interface. The last command received has
precedence.
COM1 is an RS-232 only serial interface. No switch settings are
required for COM1. Table 2“, Monitor and Control Connector
Pinouts,” on page 13 lists the pinouts for COM1.
COM2 can be configured as an RS-485 2-wire serial interface or
as an RS-485 4-wire serial interface. The pinouts for the COM2
interface are listed in Table 2 on page 13, and typical
implementations are shown in Figure 12 and Figure 13 on
page 18.
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