Sierra Wireless AirLink MP595 / MP595W Modem User Guide, Serial connector DB9 pinouts, 2130795

AirLink MP595 / MP595W Modem User Guide

Serial connector (DB9) pinouts

The MP modem is configured as DCE (Data Communications

Equipment) and uses the standard RS232 pin designations:

DB9 MALE

1 5 DB9 female connector

6 9

1.Data Carrier Detect (DCD)

2.Transmitted Data (TxD)*

3.Received Data (RxD)*

4.Data Terminal Ready (DTR)

5.	Signal Ground (GND)	Serial Host
6. Data Set Ready (DSR)
7.	Clear To Send (CTS)	Diversity

8.Request To Send (RTS)

9.Ring Indicator (RI)

*RxD and TxD are named with respect to the MP modem (that is, RxD is the Receive Data input to the MP modem, and TxD is the transmit data out of the MP modem)

USB Host

RF

Note: Ensure that the MP modem and your computer are powered off while installing cables.

Figure 3-8: Pinouts for an RS232 male DB9 serial cable (left) that connects to the MP modem’s female DB9 serial connector (right). Note that the two figures’ pinouts are mirror images of each other, since they plug together.

The serial connector uses these voltage specifications:

	RS-232-C		RS-232-C
+15 V	Driver		Receiver	+15 V
	Space logic 0	2 V	Space logic 0
		noise margin
+5 V		˝		+3 V
	Transmission		Transmission
	region		region
-5 V				-3 V
	Mark logic 1		Mark logic 1
-15 V				-15 V

Figure 3-9: Voltage specifications for the MP modem’s serial connector.

Install the USB, Ethernet or serial cable

To install the USB, Ethernet, or serial cable, thread the cable through the vehicle and attach it to the USB, Ethernet, or serial connector on the MP modem.

Note: Do not connect the cables to the computer until you have installed the software. If you have an MP 595W and are planning on using a WAP connection, see “Plan your MP modem installation” on page 20 for more information.

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