HAC-UM Series RF Module Manual SHENZHEN HAC TECHNOLOGY CO., LTD.
FAX:+86-755-23981077 23981079
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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.
