Cable Connectors

This chapter provides cable connectors and pinout information for the MCU.

Serial Connector and Null Modem Cable

The cable type and connector used with the MCU is the EIA/TIA-232 serial, 9-pin, D-type MCU connector and null modem cable.

EIA/TIA-232 9-Pin Serial Port

Table E-1 describes the various pins of the EIA/TIA-232 9-pin serial port:

Table E-1:

Pin Function I/O

1

NC

---

2

RXD

Input

3

TXD

Output

4

NC

---

5

GND

---

6

NC

---

7

NC

---

8

NC

---

9

NC

---

EIA/TIA-232-9 Serial Port

To connect the MCU serial port to a modem or a PC you need a null modem cable. The Terminal/Modem cable that is shipped with the MCU is configured to use with a PC or a modem. Figure E-1 illustrates the connectors for the Terminal/Modem cable.

Figure E-1: Terminal/ Modem Cable Connectors

Pin	Function	I/O
1	NC	---
2	RXD	Input
3	TXD	Output
4	NC	---
5	GND	---
6	NC	---
7	NC	---
8	NC	---
9	NC	---

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