KYL-500S Ver la hoja de datos (PDF) - SHENZHEN KYL COMMUNICATION EQUIPMENT CO,LTD.
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KYL-500S Datasheet PDF : 9 Pages
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Shenzhen KYL Communication Equipment Co., Ltd
1. Power supply
The factory default setting is +5V(3.3-3.6V will inform when placing the order).By
using better ripple factor, KYL-500S transceivers can also share power supply with
other equipment. If possible, a voltage-stabilizing chip with 5V voltage is more
recommended as the only power supply than Switch power supply. But if only
switch power supply available, the jam by switch pulse to the transceivers 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-500S 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
1
GND
Grounding of power supply
Level
Connection
with terminal
Ground
Remarks
2
Vcc
Power supply DC
5V
3
RxD/TTL Serial data input to the transceiver TTL
TxD
4
TxD/TTL
5
SGND
Transmitted data out of the
transceiver
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)
9
RESET
Reset signal(input)
TTL
RxD
A(RxD)
B(TxD)
TTL Sleep signal High level
sleep
TTL
Negative
pulse reset
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