CL4790-1000-232 Laird Technologies, CL4790-1000-232 Datasheet - Page 22

• Manufacturer Part Number: CL4790-1000-232
• Description: TXRX 900MHZ RS232 1W W/ANT DB9
• Manufacturer: Laird Technologies
• Series: AeroCommr

Specifications of CL4790-1000-232

• Function: Transceiver
• Modulation Or Protocol: FHSS, FSK
• Frequency: 902MHz ~ 928MHz
• Applications: General Purpose
• Interface: RS-232
• Sensitivity: -99dBm
• Power - Output: 1000mW
• Data Rate - Maximum: 115.2kbps
• 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
• Features: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

CL4790 User’s Manual
4.2.2 CN4790 Settings
The CN4790 Settings Page is shown below, as it will appear the first time the CN4790 check box
is checked.
4.2.2.1 ConnexLink Settings
6/24/2005
Random Back Off: Random BackOff determines the random amount of time a transceiver
waits when a collision occurs before resending the packet again. The amount of randomness
is controlled by this parameter.
Channel Number: A number that designates an independent network of CN4790 units. Up
to 32 independent networks can be created. The valid range of values for this field is 16 to
47.
Max Transmit Retries: This value represents the maximum number of times a particular data
packet will be transmitted unsuccessfully, or without an acknowledgement, before the
CN4790 discards the packet. The default value is 4 attempts. If communication is lost and
the Link LED is on, try increasing this value in small increments until communication is
reestablished.
Note: This value is always associated to radios in Point to Point network. The valid range of
values for this field is 2 to 255.
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