LRS400S Data Transceiver Users Manual
LUM0025AA Rev A
Version 1.0
9
Quick Start on a Point-to-Point Network
When purchased as a pair, the FreeWave®
Wireless Data Transceivers are shipped from the factory pre-
configured to operate in Point-to-Point applications. To establish communications between a pair of
FreeWave Wireless Data Transceivers just received from the factory:
1.
Connect antennas to the transceivers. Freewave Technologies recommends that the antenna
port be loaded at all times to prevent damage to the LRS400S radios. Noise potential may be
reduced on the bench by lowering the Xmit power.
2.
Connect the transceiver to the instrument with the RS232 cable and also attach power. The
cable supplied with enclosed transceivers (except Waterproof) is a 9-pin male serial; professional
board level transceivers will need a separate programming cable (sold separately).
3.
Set the Modem mode in each transceiver. One should be set as a Point-to-Point Master (Mode
0) and the other set as a Point-to-Point Slave (Mode 1).
4.
Set the baud rate on each transceiver to match the baud rate of the instrument to which it is
attached. Please note, when setting the transceiver's baud rate, its RS232 data rate is set. The
baud rate does not have to be on the same setting for the two transceivers.
5.
Edit the Call Book. Enter the Slave serial number in the Master’s Call Book. Enter the Master’s
Serial number in the Slave’s Call Book, or disable Slave Security (in the Slave).
6.
Shortly after both transceivers are plugged in, they should establish a communications link with
each other and the connection is complete. Using the table below, verify that the radios are
operating as expected.
Point-to-Point Operation LEDs
Master Slave
Condition
Carrier
Detect
(CD)
Transmit
(TX)
Clear to
Send (CTS)
Carrier
Detect (CD)
Transmit
(TX)
Clear to
Send (CTS)
Powered, no link
Solid red
bright
Solid red
bright
Solid red
bright
Solid red
bright
Off
Blinking red
\
Linked, sending
sparse data
Solid
green
Intermittent
flash
red
Ñ
o
Ò
Intermittent
flash
red
Ñ
o
Ò
Solid
green
Intermittent
flash
red
Ñ
o
Ò
Intermittent
flash
red
Ñ
o
Ò
Master calling
Slave
Solid red
bright
Solid red
dim
Solid red
bright
Solid red
bright
Off
Blinking
red
\
Mode 6 - waiting
for ATD command
Solid red
bright
Off
Blinking
red
\
Solid red
bright
Off
Blinking
red
\
Setup Mode
Solid
green
Solid
green
Solid green
Solid
green
Solid
green
Solid
green
