User's Manual

05-3946A01, Rev. C TransNET OEM Integration Guide 77

Invisible place holder

Figure 22. RJ-11 to DB-9 Diagnostic Cable—Wiring Details

(A pre-constructed cable is also available, Part No. 03-3246A01)

Diagnostic Communication Modes

Two methods may be used to communicate with the radio’s diagnostic port:

• Terminal Interface—The PC is used in its basic terminal emulation

mode, (i.e., HyperTerminal session) and commands are issued as simple

text strings.

• Radio Configuration Software—Proprietary software from the

factory that runs under the Windows operating system. It provides a

graphical user interface with “point and click” functionality. The

program is included on the TransNET Support Package CD shipped

with every radio order.

Both of these control methods are described in more detail in the section titled

“RADIO PROGRAMMING” on Page 33. This section also includes a chart

listing all commands for the OEM transceiver.

DATA Connector, J5

J5 on the Evaluation Board (Figure 23) is the data interface for the trans-

ceiver. J5 is used to connect the transceiver to an external DTE terminal that

supports only EIA/RS-232 signalling at speeds which are dependent on the

radio data rate of either 300, 600, 1200, 1800, 2400, 4800, 9600, 19200,

38400, 57600, or 115200 bps (asynchronous only). The connector mates with

a standard DB-9 plug available from many electronics parts suppliers.

DATA Wiring Connections

The connections made to J5 will depend on the requirements of the DTE

device being used with the transceiver, and the operating functions that you

require. Only the required pins for the application should be used. Do not use

a straight through “computer” type cable that is wired pin-for-pin.

Typical RS/EIA-232 applications require the use of Pin 2 (receive

data—RXD) and Pin 3 (transmit data—TXD). Additionally, some systems

may require the use of Pin 7 (Request-to-send—RTS). If hardware flow

control is desired, Pin 7 (RTS) and Pin 8 (CTS) may also need connection.

Table 32 gives pin details for radios configured for RS/EIA-232 service.

RXD

TXD

GND

DB-9 FEMALE

(TO COMPUTER)

TXD

RXD

GND

RJ-11 PLUG

(TO TRANSCEIVER)

RJ-11 PIN LAYOUT