1.
Introduction
Welcome to the LM Technologies Bluetooth RS232 Serial adapter. The
LM048/LM058 adapter eliminates your conventional RS232 serial
cables, providing an easy-to-use, invisible connection with superior
freedom of movement. This adapter allows any device with a
standard 9-pin serial port to communicate wirelessly.
This adapter can use both RTS/CTS flow control or DTR/DSR
handshaking. This adapter is capable emulating a serial cable in true
sense by transferring all the RS232 controls signals (RTS, CTS, DTR
and DSR) wirelessly to the remote side over a bluetooth link. This
capability is beneficial in case of Serial Printers which report error
conditions like “Out of Paper”, “Power failure” etc by de-asserting
the DTR or RTS lines.
This adapter is mostly used in pairs as serial cable replacement.
However, you can communicate with another Bluetooth serial
adapter or other Bluetooth enabled devices such as a laptop
computer, PDA or mobile phone.
2
Features
Supports Bluetooth Serial port profile and Generic Access profile
No need of external host and software
Ease of installation, maintenance and use
Supports configuration of local device
Supports up to 100 meters (open space)
Support of RTS/CTS data flow control
Support of DTR/DSR handshaking
Ability to transfer RTS, CTS, DTR and DSR signals wirelessly over
bluetooth link. This unique signal handling feature is used in
reporting messages such as “Out of Paper” or “Off Line” from a
Serial Printer back to the PC or Terminal equipment
Certified by leading Serial Printer Manufacturers like Casio, Star
Micronics and Casio
Supports External SMA Antenna (LM058 only)
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3.
Package
Bluetooth serial adapter
DB9 male to female converter
USB cable for power supply
User manual
Warranty Card
2Dbi Antenna (LM058 only)
Optional:
9 pin to 25 pin converter
All in one power supply (UK, EU and US Plug)
General Specification
Description
1.2/2.4/4.8/9.6/19.2/38.4/57.6/115.2/230.4/460.8/
921.6 Kbps
Up to 100 Meters
Point-to-Point (piconet)
TxD, RxD, GND, RTS, CTS, DTR, DSR
D_SUB 9-pin female
v2.0+EDR. v2.1 +EDR firmware also available
2.400 to 2.4835 GHz
1,600/sec, 1MHz channel space
GFSK-1 Mbps, DQPSK-2 Mbps, and 8-DPSK-3 Mbps
Max. 18 dBm (Class 1)
-86 dBm typical
Chip antenna
Max. 1 to 2 dBi
+4 to +12 V DC
Max. 90 mA
-20°C to +75°C
4.
Specification
Baud Rate
Coverage
Connection
Signal
RS-232 Interface
Standard Bluetooth
Frequency
Hopping
Modulation
Tx. power
Rx. Sensitivity
Antenna
Antenna Gain
Power Supply
Current Consumption
Operation Temperature
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