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② 顯示單元

　是顯示屏的主體部分，由發(fā)光材料及驅(qū)動電路構(gòu)成。出租車車頂屏屏通常是P6和P7.62/6兩種規(guī)格的單元顯示板

③ 掃描控制板

　該電路板的功能是數(shù)據(jù)緩沖，產(chǎn)生各種掃描信號以及占空比灰度控制信號。

④ 開關(guān)電源

　將出租車上24v電壓轉(zhuǎn)為5v出租車屏工作電壓。

⑤ 雙絞線傳輸電纜

　主控儀產(chǎn)生的顯示數(shù)據(jù)及各種控制信號由雙絞線電纜傳輸至屏體。

⑥ 主控制儀

   將輸入的RGB數(shù)字視頻信號緩沖，重新組織，并產(chǎn)生各種控制信號。

系統(tǒng)說明：

U盤功能 ：發(fā)布文字廣告信息，使用移動U盤隨意更改顯示內(nèi)容，簡單方便。細致的顯示文字

，達到吸引路人的效果，是商家廣告途徑的優(yōu)選。全天分七級亮度自動調(diào)節(jié)，時時顯示顯示亮度。

系統(tǒng)優(yōu)點：

1．用U盤更改發(fā)布信息，操作簡單，使用方便。

2. 車載流動性優(yōu)勢，受眾面廣，LED高亮的鮮明性、夜視性； 

3．登錄管理，用戶權(quán)限及分級管理，設(shè)備分組管理； 

4. 支持欄目管理，可設(shè)置不同的欄目； 

5. 信息編輯：可靈活編輯信息播放方式，播放時間，信息有效期，可編輯字庫及點陣文字信息及圖片信息； 

6．強大的查詢功能，可對用戶、信息、設(shè)備、欄目、工作日志等等進行查詢； 

7．強大的顯示屏控制功能，可校時、開關(guān)屏、亮度控制、異步控制等。

售后服務：

我公司為本項目售后服務的各項內(nèi)容等特此承諾：

免費保修期自LED顯示屏發(fā)出之日起，保修期限為貳年（包括硬件、軟件），貳年內(nèi)免費維護維修。

（1）、提供電話熱線支持（）。用戶的維修人員如遇在維護或操作上的任何問題，可致電我公司的售后維修服務處，向技術(shù)人員咨詢相關(guān)問題（定期回訪）。

（2）、在任何情況下，用戶可通過我司工程服務部24小時運作的技術(shù)支持電子郵箱與我司聯(lián)系，當我司收到郵件后，會于短時間內(nèi)解答用戶的提問，盡量解決屏有關(guān)問題。

（3）、當系統(tǒng)軟件版本升級時，無償對設(shè)備進行終身軟件升級，及時為使用方提供新版本。

（4）、質(zhì)保期內(nèi)，如有單元板、電源、控制系統(tǒng)等的故障，用戶可直接寄回我公司檢修（運

費各付一半發(fā)來的運費客戶付，修復后的運費本公司付），技術(shù)人員確定修好后即時高效返回給用戶。

(5）剛收到貨7天內(nèi)有任何質(zhì)量問題包換，如果時間太急，需要我們發(fā)新板子或配件過去！

提供終身維護：

（1）在保修期過后，我公司對發(fā)生的故障維護，對更換的備件，只收取成本費用，終生服務

。（2）質(zhì)保期后，如有單元板、電源、控制系統(tǒng)等的故障，用戶可直接寄回我公司檢修(運費自理)，我司技術(shù)人員確定修好后即時高效返回給用戶。

其它條款：

（1）服務不包括一切因疏忽、大意、意外、自然災害、不按說明書操作、錯誤使用、不依批示處理產(chǎn)品而引致的故障或損壞，亦不包括經(jīng)自行改造的產(chǎn)品和遺失零件。

（2）任何由非本公司授權(quán)人士因維修、改動或擅自變動系統(tǒng)或而引致的損壞，不包括在此保修服務條款之內(nèi)。

訂購產(chǎn)品與了解產(chǎn)品詳情的請致電：137-9846-7050 朱先生

規(guī)格：JHH-2 (二通)名稱：礦用本安電路用電纜接線盒

適用范圍：

適用煤礦井下瓦斯和煤塵爆炸的環(huán)境，作為電氣設(shè)備之間，連接本質(zhì)安全型電路的電纜接線、分線之用。用來連接傳輸本安信號的電纜。以延續(xù)電信號的傳輸，或使某一方向的信號通過電纜傳輸?shù)搅硗庖恢寥齻€地方。具有體積小、重量輕、安裝方便等特點。外殼材料采用阻燃ABS工程塑料，電纜引出裝置采用橡膠壓緊式密封，具有阻燃、防靜電、密封性能好等特點。

技術(shù)參數(shù)：

工作電壓≤60V、工作電流≤1A、接觸電阻≤0.01Ω

接線用途：

該產(chǎn)品只能適用于本安電路連接

使用環(huán)境：

a、周圍環(huán)境溫度一般為：-20℃-+40℃；

b、周圍空氣相對濕度：≤95%(+25℃時)；

c、環(huán)境氣壓：86-110KPa；

d、在無顯著搖動和沖擊振動的環(huán)境

e、在含有爆炸性氣體的煤礦井下

f、污染等級：3級

g、安裝類別：Ⅲ類

主要技術(shù)指標:1、防爆型式：礦用本質(zhì)安全型；防爆標志：ExibI

2、接點容量：30V/1A

3、接觸電阻：≤0.01Ω

4、允許電纜直徑：Φ6-16mm

5、通路數(shù)：5個

6、外形尺寸：220*190*65(mm)

7、內(nèi)部尺寸：140*110*40(mm)

8、重量：1Kg

產(chǎn)品型號及規(guī)格：

JHH-2二通本安型接線盒，JHH-3接線盒，JHH-4四通礦用接線盒，JHH-5五通礦用接線盒礦用電纜接線盒，JHH-6六通10對礦用接線盒，JHH-6六通20對礦用接線盒，JHH-6六通30對礦用接線盒，JHH-7七通礦用接線盒，JHH-8八通10對礦用接線盒，JHH-8八通20對礦用接線盒，JHH-8八通30對礦用接線盒，JHH-10十通30對礦用接線盒，JHH-10十通50對礦用接線盒，JHH-10十通100對礦用接線盒，JHH本安接線盒，礦用接線盒，本安電路用電纜接線盒，60V礦用本安電路用接線盒，1A本安型接線盒，JHH接線盒。

訂貨須知：

訂貨時需說明訂貨數(shù)量、規(guī)格及配接電纜型號

※ 輸出信號強，抗干擾能力  ※ 抗過載和抗沖擊能力強，過壓可達量程數(shù)十倍至百倍

 ※ 可測量正負表壓和絕對壓力

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