Data Sheet
Operating voltage: 5V or 12V DC
Carrier frequency: 140 to 150MHz, 223 to 235MHz or 400 to 500MHz
Interface: standard RS-232/RS-485/TTL selectable
Baud rate: 1,200/2,400bps selectable
Channel spacing: 25kHz/12.5kHz/5KHz
Frequency stability: ±2.5ppm
Modulation: FFSK
Channels: 16
Impedance: 50Ω
Size: 72 x 46 x 14mm (without antenna port)
Weight: 180g
Transmission distance: 2-3km
Interface definition:
|
Pin No.
|
Signal name
|
Function
|
Level
|
Remarks
|
|
1
|
VCC
|
Power input
|
12 V
|
1W and 500mW modules are 12V power supply
|
|
2
|
5V
|
For 500mW module, 5V is also available
|
|
3
|
GND
|
Ground of the power
|
|
|
|
4
|
|
5
|
A(TXD)
|
RS-485 A or TXD of RS-232
|
|
choose RS232 or RS485,only one valid
|
|
6
|
B(RXD)
|
RS-485 B or RXD of RS-232
|
|
|
7
|
PTT
|
Transmitting control
|
TTL
|
Low level valid
|
|
8
|
MIC
|
Microphone input control
|
|
Microphone with 1kΩ-2kΩ and -27dB
|
|
9
|
SP
|
Output audio
|
|
8Ω 0.5
|
|
10
|
SQ
|
receiving
|
TTL
|
High level
|
Appliccation:
Wireless LED display, Wireless LED Sign, Wireless Lighting Management
Wireless Attendance Checking Machine, Attendance Record Machine, Finger Print Machine
Wireless Alarm System, Wireless Security system, wireless intruder alarm
Wireless fire alarm system
Wireless Laser Barcode Scanner
Wireless LCD Baby monitor, wireless monitoring sensor
Wireless POS Terminal, Wireless PAD
Oil and Gas Telemetry, Oil Field Management
Water Level Controller, water detector
Pressure sensor, Temperature sensor,
Wireless Windows Sensor, Wireless Door Sensor
Digital force recorder, Digital weight indicator, Electronic scale
Queuing Management System
Automatic Meter Reading
Tire pressure monitoring, Four-wheel Orientation
Medical Treatment, Wireless nurse calling system
Industry Automation, Home automation, Building automation,
Access Control System
Wireless Remote control
Wireless PTZ Control
Wireless irrigation system, Drip irrigation
Intelligent Traffic system