Shenzhen KYL Communication Equipment Co., Ltd
Fax: +86-755-82943662 [email protected]
www.rf-data.com
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2.
Connection Definition with terminal
KYL-300H transceivers supply one 9-pin connector (JP1), their definitions and
connection methods with terminals are shown in Table 1.
Table 1: JP1 Pin Definitions and connection methods
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
Serial data input to the transceiver
TTL
TxD
4
TxD/TTL
Transmitted data out of the
transceiver
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 (input)
TTL
Sleep signal
High level
sleep
9
RESET
Reset signal(input)
TTL
Negative
pulse reset
3. The connection schematic diagram of KYL-300H transceivers with terminal.
4. Setting of channel, interface and data format:
Before using KYL-300H, the user needs to make simple configuration based on its own
needs to determine the channel, interface mode and data format.
The user can change or view the module's interface baud rate, channel and address code.
VCC 12V
GND
9
1
