KYL-300L Просмотр технического описания (PDF) - SHENZHEN KYL COMMUNICATION EQUIPMENT CO,LTD.
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KYL-300L Datasheet PDF : 15 Pages
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Shenzhen KYL Communication Equipment Co., Ltd
1. Power supply
The factory setting is +5V (needing 7.5V-12V, please notify us when placing the
order). Using better ripple factor, KYL-300L transceivers can also share power
supply with other equipment. If possible, a voltage-stabilizing chip with 5V voltage
is much more recommended than Switch power supply. But if only switch power
supply is available, the jam caused by switch pulse should be avoided. In addition,
the reliable grounding must be used if there is other device 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.
2. Connection Definition with terminal
KYL-300L 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
1
GND
Grounding of power supply
2
Vcc
Power supply DC
5V
3
RxD/TTL Serial data input to the transceiver TTL
4
TxD/TTL Transmitted data out of the TTL
transceiver
5
SGND
Signal
6
A (TXD) A of RS-485(TxD of RS-232)
7
B (RXD) B of RS-485(RxD of RS-232)
8
SLEEP
Sleep control (input)
TTL
9
RESET
Reset signal(input)
TTL
Connection
with terminal
Ground
Remarks
TxD
RxD
A(RxD)
B(TxD)
Sleep signal
High level
sleep
Negative
pulse reset
3. The connection schematic diagram between computer and our RF module
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