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XStream-PKG-R™ RS-232/485 RF Modem – Product Manual v5.x00

1.3. External Interface

1.1a. Power Switch

Figure 1.1. Front View

1.1b. I/O and Power LEDs

The LED indicators visualize diagnostic status information. The

modem’s status is represented as follows:

Yellow (top LED) = Serial Data Out (to host)

Green (middle) = Serial Data In (from host)

Red (bottom) = Power/TX Indicator (Red light is on when

powered, off briefly during RF transmission)

1.1c. Serial Port (DB-9 Connector)

Standard female DB-9 (RS-232) DCE connector – This connector

can be also used for RS-485 and RS-422 connections.

1.1d. Power Connector

7-18 VDC Power Connector (Center positive, 5.5/2.1mm) – Power

can also be supplied through Pin 9 of the DB-9 Serial Port.

1.2a. DIP Switch

Figure 1.2. Back View

NOTE: In cases where AT Commands should not be sent each time

the RF Modem is powered-on, the processor must be disabled by

populating J7 on the interface board inside the modem (p21).

1.2b. Config (Configuration) Switch

The Configuration Switch provides an alternate way to enter “AT

Command Mode”. To enter “AT Command Mode” at the RF

modem’s default baud rate, hold the Configuration Switch down

while powering on the modem using the Power Switch (1.1a).

1.2c. Antenna Port

Figure 1.3. DIP Switch Settings

Move the Power Switch to the on (up) position to power the

Interface Board. DIP Switch (1.2a] settings are only read

during a power-up sequence.

The DIP Switch automatically configures the XStream RF Modem

to operate in different modes. Each time the modem is powered-

on, intelligence inside the XIB-R interface board (inside the

modem) programs the modem according to the positions of the

DIP Switch. (See figure below for DIP Switch settings]

Refer to table in the “Automatic

DIP Switch Configurations” (p19]

section for more information about

configurations triggered by the

DIP Switch.

1.1a.

Power

Switch

1.1b. I/O and

Power LEDs

1.1c. DB-9

Serial Port

1.1d. Power

Connector

1.2a.

DIP Switch

1.2b.

Config Switch

1.2c.

Antenna Port

Port is a 50Ω RF signal connector for connecting to an external

antenna. The connector type is RPSMA (Reverse Polarity SMA) female.

The connector has threads on the outside of a

barrel and a male center conductor.