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      HAC-UM Series RF Module Manual          SHENZHEN HAC TECHNOLOGY CO., LTD.

 

FAX:+86-755-23981077 23981079             

- 3 -

                                                            www.rf-module-china.com

 

I.

 

Features of HAC-UM Series 

1.

 

Ultra low power transmission with 10mW as the maximal transmitting power   

2.

 

ISM frequency band with no require of applying frequency 

The  factory  default  carrier  frequency  is  433MHz.  (868/915MHz  available  as  another  type 

UN) 

3.

 

High anti-interference and Low BER (Bit error Rate) 

Based  on  the  Gaussian  Frequency  Shift  Keying  (GFSK)  modulation,  the  high-efficiency 

forward error correction channel encoding technology is used to enhance data

s resistance to 

both transient interference and random interference and the actual bit error rate of 10

-5

 ~ 10

-6

 

can be achieved when channel bit error rate is 10

-2

4.

 

Long Transmission Distance 

Within  the  visible  range,  when  the  height  of  antenna  is  higher  than  2m  and  The  Bit  Error 

Rate  (BER)  is  10

-3

,  the  reliable  transmission  distances  respectively  is  1000m@1200bps. 

When the baud rate is 4800bps, it is more than  700m. When the baud rate is 9600bps, it is 

more than 500m. 

5.

 

Transparent data transmission 

Transparent data interface used in transceivers is for meeting many standard or nonstandard 

user protocols. Any false data generated in air can be filtrated automatically (What has been 

received is exactly what has been transmitted). 

6.

 

Multi-channels 

HAC-UM  transceivers  offer  8  channels,  if  needed,  16  or  32  channels  available  to  satisfy 

various configuration of communication under user

s demand at the same time   

7.

 

2 ports with three connection methods   

HAC-UM  transceivers  provide  2  ports  with  three  connections,  ports:  a  UART  interface  of 

TTL  level,  a  non-standard  RS-232  port  and  a  non-standard  RS-485  port,  which  both  are 

defined  by  user  software  (define  it  just by plugging out  and  in one short  circuit  device  and 

then power on).   

Note: UM384 (i.e. 38400bps) is without any non-standard RS-232/485 port. 

8.

 

Big data buffer area 

With  optional  interface  baud  rate:  1200/4800/9600/19200/38400bps  and  8N1/8E1  data 

format  (set  by  user),  the  transceiver  can  transmit  unlimited  data  frames  with  flexible  user 

program.   

Содержание UM Series

Страница 1: ...HAC TELECOM TECHNOLOGY CO LTD Address Fl 6 Building 2 Jiuxiangling New Industry Park No 4227 Xilihu Road Nanshan Shenzhen China Tel 86 755 23981078 23981077 Fax 86 755 23981007 E mail webmaster rf mo...

Страница 2: ...55 23981077 23981079 2 www rf module china com Catalogue I Features of HAC UM Series 3 II Applications of HAC UM Series 4 III How to use HAC UM Series 4 IV Networking Application of HAC UM Series 13 V...

Страница 3: ...200bps When the baud rate is 4800bps it is more than 700m When the baud rate is 9600bps it is more than 500m 5 Transparent data transmission Transparent data interface used in transceivers is for meet...

Страница 4: ...gh reliability small and light By using monolithic radio frequency integrated circuit and single chip MCU the transceivers have less peripheral circuits high reliability and low failure rate 12 More o...

Страница 5: ...ice in the system equipment In case of failing to connect with the ground it can form its own grounding but must be absolutely separated from the municipal electric supply If lower power for lower pow...

Страница 6: ...mper wire JP2 on the upper right corner of HAC UM defined as ABCDE respectively Assuming the open circuit of jumper wire without short circuiter is mode 1 and short circuit of jumper wire with short c...

Страница 7: ...nal equipment through serial port COM1 and COM2 output simultaneously i e if the user connects one device at COM1 and COM2 respectively they both can receive the data simultaneously ii For the data tr...

Страница 8: ...them software a How to use the Sleep function The Pin8 SLP in JP1 is the signal of sleep control In high power level when the transceiver stays in sleep mode the conversion from idle mode to sleep wil...

Страница 9: ...orward Error Correction or other correction algorithm when RxD of a HAC UM transceiver A receives the data then transmits it the other one transceiver B will have a delay ts to receive and transmit by...

Страница 10: ...actual transmission BER Bit Error Rate is 10 4 1 packet with 1KB data which is about 10 thousand bits is sent theoretically at least 1 bit will be received wrongly then the 1KB information will never...

Страница 11: ...on Many appropriative antennas for ultra low power RF modules are selected for meeting different user antenna configurations Please ask our Sales office for further information about the antenna s dim...

Страница 12: ...antenna with folding joint easy for adjusting the direction and fixing iii LX433 3 SMA 35mm SMA helical antenna with magnetic core small size beautiful appearance like the mobile phone antenna b SMT...

Страница 13: ...tion is controlled by master station that uses data frames containing address code to transmit data or command Slave station will receive all of the data and command and compare the received address c...

Страница 14: ...9600bps under 10 2 BER Bandwidth 12 5K 1200bps 100K 9600bps Interface data format 8E1 8N1 Transmit current 42mA Receive current 32mA Sleep current 5 A Working humidity 10 90 relative humidity without...

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