
Shanghai Sunray Technology Co., Ltd
__________________________________________________________________________________
Tel: +86-021-50275250/50275255 Fax: +86-021-50270187 http: www.sunrayrf.com
Add: 201 Keyuan Road. Pudong Zhangjiang, ShangHai, China
1
SRWF-Smart RF (RS485) Transceiver
Terminal User Manual

Shanghai Sunray Technology Co., Ltd
__________________________________________________________________________________
Tel: +86-021-50275250/50275255 Fax: +86-021-50270187 http: www.sunrayrf.com
Add: 201 Keyuan Road. Pudong Zhangjiang, ShangHai, China
2
Contents
I. Application Field.......................................................................................3
II. Features.....................................................................................................3
III. Technical specification.........................................................................4
IV. The module inside can be selected...................................................4
V. Appearance..............................................................................................4
VI. Connection..............................................................................................6
VII. Product Size...........................................................................................6
VII. Technical Support and After Service................................................7

Shanghai Sunray Technology Co., Ltd
__________________________________________________________________________________
Tel: +86-021-50275250/50275255 Fax: +86-021-50270187 http: www.sunrayrf.com
Add: 201 Keyuan Road. Pudong Zhangjiang, ShangHai, China
3
I. Application Field
² AMR system about the water, gas, electric and central heating
² Wireless data collecting system
² Data transmission system in the railway station, oil field, dock, army field
and so on
² Medical treatment and electric meter remote control system
² Home and building automation system, street lamp wireless control
system
² Wireless intellectual over-weight detecting system
² Queue management system in the bank, hospital, hall and so on
² Wireless alarm and security systems
² Data radio can be used for Wireless conference voting system
² Radio modem can be used for Sports training & competition
² Wireless dishes ordering
² RF modem can be used for Electronic bus station and intelligent traffic
² RF transmitter Wireless electronic display screen and queuing machine
² Wireless telemetry charging for parking, parking lot
² Wireless modem Automobile inspection and four-wheel orientation
² Wireless sensor Industrial wireless remote control and air conditioning
remote controller
² Observation and predication of oil well and hydrological information
² Point to multi-point wireless network, wireless on-the-spot bus and
automatic data collection system
II. Features
Can be used in any standard or nonstandard user protocol
High anti- interference and low BER(Bit Error Rate)
Long transmission distance
8/16/32 signal channels to be selected
Baud rate is 1200/2400/4800/9600/19200bps with data format of
8N1/8O1/8E1/9N1 and user self-definition

Shanghai Sunray Technology Co., Ltd
__________________________________________________________________________________
Tel: +86-021-50275250/50275255 Fax: +86-021-50270187 http: www.sunrayrf.com
Add: 201 Keyuan Road. Pudong Zhangjiang, ShangHai, China
4
A variety of antenna options
Advanced solution of using signal RF IC and signal MCU ,less peripheral
circuits, high reliability, and low false bit rate
III. Technical specification
Modulation mode
GFSK/FSK
Channel counts
8/16/32 channels
Interface velocity
1200/2400/4800/9600/19200bps
Interface
RS-485
Power supply
5V/5W
Working temperature
-25 ~75℃ ℃
customized
-40℃~85 ℃
Working humidity
10%~90%(relative humidity
without condensation)
Dimension
78.5mm×45.5mm×19.0mm
Reliable transmission
distance
300m ~ 2500m
depend on module 、
antenna、baud rate
IV. The module inside can be selected
SRWF-102 Series:SRWF-1021, SRWF-1028
SRWF-11
Series:SRWF-1101, SRWF-1108
SRWF-50
Series:SRWF-501, SRWF-501-50,SRWF-508
V. Appearance
front-view
power LED
antenna pedestal
dual-color signal LED
note:
red lighting is transmitting state
green lighting is receiving state

Shanghai Sunray Technology Co., Ltd
__________________________________________________________________________________
Tel: +86-021-50275250/50275255 Fax: +86-021-50270187 http: www.sunrayrf.com
Add: 201 Keyuan Road. Pudong Zhangjiang, ShangHai, China
5
Back-view
Top-view
Power and RS-485 interface

Shanghai Sunray Technology Co., Ltd
__________________________________________________________________________________
Tel: +86-021-50275250/50275255 Fax: +86-021-50270187 http: www.sunrayrf.com
Add: 201 Keyuan Road. Pudong Zhangjiang, ShangHai, China
6
VI. Connection
+5V GND A B
VII. Product Size
Unit: mm

Shanghai Sunray Technology Co., Ltd
__________________________________________________________________________________
Tel: +86-021-50275250/50275255 Fax: +86-021-50270187 http: www.sunrayrf.com
Add: 201 Keyuan Road. Pudong Zhangjiang, ShangHai, China
7
VII. Technical Support and After Service
We provide full technical support for our clients on applications and secondary
development. Our products have one-year warranty and perpetual maintenance
services.