CL4790-1000-232 Laird Technologies, CL4790-1000-232 Datasheet - Page 11

• 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
2.1
RS-232 is a single ended data transmission protocol. The RS-232 signals are represented by
voltage levels with respect to a system common (power / logic ground). The "idle" state (MARK)
has the signal level negative with respect to common, and the "active" state (SPACE) has the
signal level positive with respect to common. RS-232 has numerous handshaking lines (primarily
used with modems), and also specifies a communications protocol.
6/24/2005
RS-232 DB9 Female Connector
RS-232
OEM Host/PC
Pin
1
2
3
4
5
6
7
8
9
DTE
Figure 5- RS-232 Male/Female Connector Pin out
Description
DCD
TXD
GND
DSR
DTR
RXD
GND
DCD
DTR
DSR
RTS
RxD
RTS
CTS
CTS
TxD
RI
Figure 6- DCE to DTE Interface
Straight Through Cable
RS-232 DB9 Male Connector
TXD
DCD
CTS
RTS
DSR
GND
DTR
RXD
CL4790 Modem
Pin
NC
NC
2
3
4
5
6
7
8
DCE
Description
GND
DCD
DSR
DTR
CTS
RxD
RTS
TxD
RI
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