PMC-HS-SERIAL 串行数据接口 具有支持异步、单同步、双同步

PMC-HS-SERIAL是一种四通道高速串行数据接口，具有支持异步、单同步、双同步、HDLC、SDLC、LAPB、LAPD、ISDN和PPP通信协议，支持RS-232、RS-422、EIA-449、EIA-530或V.35物理接口等特点。

串口是计算机上一种非常通用的设备通信协议。

PMC-HS-SERIAL串口原名叫做串行接口（Serial Interface）或串列埠、序列埠，别名叫COM口（串行通讯端口）。PC机一般有两个串行口COM1和COM2。

串行口不同于并行口之处在于它的数据和控制信息是一位接一位地传送出去的。虽然这样速度会慢一些，但传送距离较并行口更长，因此若要进行较长距离的通信时，应使用串行口。

通信协议是指双方实体完成通信或服务所必须遵循的规则和约定。

PMC-HS-SERIAL通信协议是指交流什么、怎样交流及何时交流，都必须遵循某种互相都能接受的规则。

PMC-HS-SERIAL通信协议的规则定义了数据单元使用的格式，信息单元应该包含的信息与含义，连接方式，信息发送和接收的时序，从而确保网络中数据顺利地传送到确定的地方。

在计算机通信中，通信协议用于实现计算机与网络连接之间的标准，网络如果没有统一的通信协议，电脑之间的信息传递就无法识别。

常问问题

1.保修怎么样?

所有产品均享有1年保修。⒉.什么是交货时间?

通常1-3个工作日

3.其他供应商的价格比您好吗?

“为客户创造利益是我们的信念。如果您有更好的价格，请告诉我们。我们会尽力满足您的价格并支持您4 .发货怎么样?

我们可以安排发货以具有竞争力的价格，例如顺丰，德邦等

PMC-HS-SERIAL 串行数据接口 具有支持异步、单同步、双同步

PMC-HS-SERIAL is a four-channel high-speed serial data interface that supports asynchronous, single-synchronous, dual-synchronous, HDLC, SDLC, LAPB, LAPD, ISDN and PPP communication protocols, and supports RS-232, RS-422, EIA-449, EIA-530 or V.35 physical interfaces.

Serial port is a very common device communication protocol on computers.

PMC-HS-SERIAL Serial port formerly known as serial Interface (Serial Interface) or serial port, serial port, other name COM port (serial communication port). PCS generally have two serial ports COM1 and COM2.

A serial port differs from a parallel port in that its data and control information is transmitted bit by bit. Although this speed will be slower, but the transmission distance is longer than the parallel port, so if you want to carry out long-distance communication, you should use the serial port.

Communication protocol refers to the rules and agreements that the two entities must follow to complete the communication or service.

The PMC-HS-SERIAL communication protocol means that what to communicate, how to communicate, and when to communicate must follow some mutually acceptable rules.

The rules of the PMC-HS-SERIAL communication protocol define the format used by the data unit, the information and meaning that the information unit should contain, the connection method, and the timing of the information sent and received, thus ensuring the smooth transmission of data in the network to the specified place.

In computer communication, the communication protocol is used to realize the standard between the computer and the network connection. If the network does not have a unified communication protocol, the information transfer between the computers cannot be identified.

Frequently asked question

1. What about the warranty?

All products are guaranteed for 1 year. What is lead time?

Usually 1-3 working days

3. What are the prices of other suppliers?

"Creating benefits for our customers is our belief. If you have a better price, please let us know. We will try our best to meet your price and support you. 4. How about delivery?

We can arrange shipments at competitive prices, e.g. Sf Express, Deppon, etc