CL4490-1000-232 Laird Technologies, CL4490-1000-232 Datasheet - Page 14

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

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
3. Network Topologies
Topology refers to the shape of a network, or the network's layout. How different nodes in a
network are connected to each other and how they communicate, is determined by the network's
topology. The CL4490s support a Point-to-Point and a Point-to-Multipoint network topology.
3.1 Point-to-Point
A point-to-point system is a simple arrangement consisting of just two CL4490s - a Server and a
Client. Sometimes referred to as a wireless bridge, a point-to-point link replaces a single
communications cable. A point-to-point link might be used to connect a PLC to a remote
monitoring station.
3.2 Point-to-Multipoint
Point-to-Multipoint systems have one base station, or access point, that controls communications
with all of the other wireless nodes in the network. This allows for the creation of a wireless
network consisting of multiple nodes. By programming each CL4490 with a network specific
Channel Number and System ID multiple networks can be created see (Fig 9).
10/3/2005
(Remote Monitoring
Station)
Example: Channel Number = 13
OEM HOST
System ID = 123
Figure 9- Multiple Networks of Point-to-Multipoint CL4490s
Server
Figure 8- Point-to-Point Network
Example: Channel Number = 25
Client
System ID = 256
OEM HOST
(PLC)
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