CL4490-1000-232 Laird Technologies, CL4490-1000-232 Datasheet - Page 22

TXRX 900MHZ RS232 1W W/ANT DB9

CL4490-1000-232

Manufacturer Part Number
CL4490-1000-232
Description
TXRX 900MHZ RS232 1W W/ANT DB9
Manufacturer
Laird Technologies
Series
Connexlink™r
Datasheets

Specifications of CL4490-1000-232

Function
Transceiver
Modulation Or Protocol
FHSS, FSK
Frequency
902MHz ~ 928MHz
Applications
General Purpose
Interface
RS-232
Sensitivity
-99dBm
Power - Output
1000mW
Data Rate - Maximum
76.8 kbps
Features
RS 232 Interface
Voltage - Supply
7 V ~ 18 V
Package / Case
Module
Wireless Frequency
900 MHz
Interface Type
RS-232, RS-485
Board Size
121 mm x 70 mm x 30 mm
Modulation
FHSS, FSK
Security
1 byte System ID, DES
Operating Voltage
100 V to 120 V
Output Power
1000 mW
Antenna
Dipole
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant, Lead free / RoHS Compliant
CL4490 User’s Manual
5. Troubleshooting
If these troubleshooting tips do not resolve the problem, please call our toll free number at
492-2320, extension 228. Technical support hours are Monday through Friday, 8:00 am to 5:00
pm Central Standard Time.
10/3/2005
Read Radio
displays error
message:
“Radio not
responding.”
Write Radio
displays error
message:
“Radio not
responding.”
Garbled Data
received.
Client’s Link
LED does not
come on.
Link LED is
on, but data
does not get
transmitted or
received.
Problem
1.
1.
2.
3.
4.
1.
2.
1.
2.
3.
4.
5.
1.
2.
Make sure the PC Settings are right. See Section
4.2.3 PC Settings.
Make sure the CL4490 unit(s) is connected to the
correct COM Port.
Make sure the CL4490 unit uses the right serial
cable. Refer to Section 2.1 RS-232.
If any other program that is using the same COM
port as CL4490 is open, close that program and
try to read the radio again.
Reset the radio by cycling power after each
unsuccessful Read.
Check Data Encryption Standard settings.
Check the COM port settings for correct Baud
Rate, Parity and either Hardware or No Flow
Control. Units can have transmission errors
with Flow Control set to Xon/Xoff.
Try increasing the Maximum Transmit
Attempts (for Clients) and/or Broadcast
Attempts (for Servers) values in small
increments until communication is established.
Connect a Null Modem adapter between the
Client and its host device.
Check the Destination Address setting.
Make sure the unit is connected to power.
Cycle power to the radio.
Cycle power to the radio.
Read the radio and make desired changes and
then Write the radio.
CL4490
Solution
1.
1.
1. Make sure the PC Settings are right. See
Section 7.2.3 PC Settings.
2. Make sure the CN4490 unit uses the right
Ethernet cable. Refer to Section 2.2 LAN Port.
3. If any other program that is using the same
LAN port as CN4490 is open, close that
program and try to read the radio again.
4. Reset the radio by cycling power after each
unsuccessful Read.
1. Cycle power to the radio.
2. Read the radio and make desired changes
and then Write the radio.
1. Check Data Encryption Standard
powered up.
2.
is right.
2.
Attempts (for Clients) and/or Broadcast
Attempts (for Servers) values in small
increments until communication is established.
3.
Make sure Server CN4490 unit is
Make sure the CN4490 unit(s) IP Address
Cycle power to the radio.
Try increasing the Maximum Transmit
Check the Destination Address setting.
CN4490
(800)
22
settings.

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