Home > Security & Protection > Surveillance, Control & Protection > Monitoring System & Software > Wireless RS232/RS485/RS422 Data Module Radio

Wireless RS232/RS485/RS422 Data Module Radio

Wireless RS232/RS485/RS422 Data Module Radio thumbnail-1
Wireless RS232/RS485/RS422 Data Module Radio photo-1
US$ 200 - 400 MOQ: 1 Piece
Key Specifications
Get Latest Price
Place of Origin:
Guangdong, China
Brand Name:
Safe Guard
Model Number:
SG-M304
Contact Supplier Request Quote Chat Now
Shenzhen Safe Guard Co., Ltd.
Payment & Shipping
Payment Methods:
Port of Shipment:
shenzhen
Delivery Detail:
Delivery time depends on order quantity.

Related Products

  • Product Details

  • Company Profile
  • Contact Us
Place of Origin Guangdong, China
Brand Name Safe Guard
Model Number SG-M304

Wireless RS232/RS485/RS422 data Module Radio

 

Wireless RS232 data Module 

Special Features:  

Use TCXO and digital PLL advanced technologies, high stability;

Integration of transceiver, both digital and analog signals can be send and switch quickly;

Steady outsell, good hidden and stronger anti-interference;

Industrial designes, work temperature: -40~+70°C;

Several kinds of interfaces for choice: RS-232, TTL, RS-485;

DATA Format: 8N1/8E1/8O1( Customized )

Antenna Impedance: 50Ω (SMA Customized)

 

Application:

Remote reading system of water, electric and gas supply;

Building Automation, security & protection, devices monitoring and access control

system;

Wireless calling system;

Spot management, station management;

RF transmitter Wireless electronic display screen and queuing machine;

Electronic bus station and intelligent traffic;

Alarm systems.

 

Specification:

Frequency: VHF/UHF ( 223-235MHz )

Power: 500mW

Frequency stability: ± 2.5ppm

Mode: half-duplex 

Channel spacing: 25KHz

Voltage: DC 12V ( Customized )

Transmission distance: 2km

 

Receiver Indicator:

Usable sensitivity: ≤0.25μV (12dB SINAD)

Adjacent channel selectivity: ≥70dB

Spurious Response Immunity: ≥ 65dB

Adjacent channel power ratio: ≥70dB

Audio Output: 0.5W(8Ω, 10% Distortion)

Distortion: ≤3%

Current: ≤ 50mA

 

 

Transmitter indicator:

RF Output: 500mW

Adjacent channel power ratio: ≥70dB

Modulation Distortion: ≤3%

Modulation Sensitivity: 5mV

Current: ≤300mA

Size: 70*46*8mm

 

 

Interfaces definition:

 

Name

Description

Level

Remark

1

VCC

DC

12 V

 

DC 12V ( as good in range 7.5~15V), or customized

2

3

GND

GND

---------

-----------------

4

5

A(TXD)

RS-485 A or TXD of RS-232

 

Either RS-485 or RS-232

6

B(RXD)

RS-485 B or RXD of RS-232

 

7

PTT

Transmit control

TTL

Low level validity

8

MIC

Audio input

--------

Recommend 1K-2K, -27dB sensitivity of microphone

9

SP

Audio output

 

8Ω 0.5

10

SQ

Receiving indication

TTL

High-level

 

6 Complete set of equipment:

1. One module of SG-M304;

2. 10 pin flat connector;

3. A whip antennas ( about 10cm)

 

Send Inquiry to This Supplier

Message
0/5000

Want the best price? Post an RFQ now!
Shenzhen Safe Guard Co., Ltd.
Business Type
Manufacturer, Trading Company
Year Established
2009
Factory Size
1,000-3,000 square meters
Total Employees
51 - 100 People
Contact Supplier Request Quote Chat Now

You May Also Like

Product Categories

Related Searches

Recommended Categories

Explore top categories and find suppliers for your specific needs
CCTV Camera CCTV Camera
NVR NVR
Monitor Monitor
Camera Housing Camera Housing
Other Surveillance, Control & Protection Other Surveillance, Control & Protection