Data Sheet:
Power output: DC 5V (customize)
RF power: 500mW (customized 500mW~1W)
RF effective rate: 1,200/2,400/4,800/9,600/19,200bps selectable
Interface baud rate: 1,200/2,400/4,800/9,600/19,200bps programmable
Frequency band: 433 MHz, 450MHz, 470MHz
Interface: standard RS-232/RS-485/TTL
Communication mode: half-duplex
Channel: 8(default), 16/32/64(customized)
Receive current: less than 28mA (TTL connect)
Receive sensitivity: -123dBm@1,200bps); -118dBm@9,600bps)
Transmitting current: 400mA
Sleep current: less than 20uA
RF line-of-sight range: more than 2km (BER=10-5@9,600bps);
3km (BER=10-5@1,200bps)
Size: 53 x 38 x 10mm (without antenna port)
Pin Definition:
|
Pin No.
|
Signal Name
|
Function
|
Level
|
Connection with terminal
|
Remarks
|
|
1
|
GND
|
Grounding of power supply
|
|
Ground
|
|
|
2
|
Vcc
|
Power supply DC
|
5V
|
|
|
|
3
|
RxD/TTL
|
Data receiving (TTL Level)
|
TTL
|
TxD
|
|
|
4
|
TxD/TTL
|
Data transmitting (TTL Level)
|
TTL
|
RxD
|
|
|
5
|
SGND
|
Signal
|
|
|
|
|
6
|
A (TXD)
|
A of RS-485 (TxD of RS-232)
|
|
A(RxD)
|
|
|
7
|
B (RXD)
|
B of RS-485 (RxD of RS-232)
|
|
B(TxD)
|
|
|
8
|
SLEEP
|
Sleep control
|
TTL
|
Sleep signal
|
Low level valid
|
|
9
|
TEST
|
Factory testing
|
TTL
|
|
|