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:
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 |
