7

Connector Pin Assignments

TM-PIMC-0001 Transition Module COM1 Connector (J9)

An RJ-45 connector is located on the rear panel of the TM-PIMC-0001 Transition Module to provide the interface to the COM1 serial port. The COM1DIR jumper (J11) is a two position (three pin) jumper that controls the origin of the serial port. With pins 2-3 jumpered, COM1 from the MCPN750A SBC is enabled (and thereby disables it on the MCPN750A front panel connector). With pins 1-2 jumpered, the connector is redirected to the PMC I/O module 1 (PIM1). Refer to the TM-PIMC-0001 Installation Preparation section of Chapter 1 for specific jumper placement information. The pin assignments for this connector are as follows:

Table 7-18. TM-PIMC-0001 COM1 Connector (J9)

1DCD

2RTS

3GND

4TXD

5RXD

6GND

7CTS

8DTR

7-28

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Motorola MCPN750A, IH5 manual TM-PIMC-0001 Transition Module COM1 Connector J9, TM-PIMC-0001 COM1 Connector J9