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RS485专用电缆RS422-2*2*1.0

RS485专用电缆RS422-2*2*1.0
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  • 产品名称:RS485专用电缆RS422-2*2*1.0
  • 产品型号:RS485专用电缆RS422-2*2*1.0
  • 产品展商:天联电缆
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简单介绍
RS485专用电缆RS422-2*2*1.0是我厂生产的型号规格中的一种,要想了解RS485专用电缆RS422-2*2*1.0是什么意思,是什么线,以及价格,RS485专用电缆RS422-2*2*1.0代表的含义请咨询销售部
产品描述
RS485专用电缆RS422-2*2*1.0是我厂众多产品中的一种,RS485专用电缆RS422-2*2*1.0产品的规格众多,我厂年产RS485专用电缆RS422-2*2*1.0几十万公里,有着丰富的制造RS485专用电缆RS422-2*2*1.0的宝贵经验,要详细的了解我厂RS485专用电缆RS422-2*2*1.0产品信息,可以拨打销售人员电话索要RS485专用电缆RS422-2*2*1.0的规格书。如果还想了解RS485专用电缆RS422-2*2*1.0以外的产品可以登录网址www.mhyv.cn查询。RS485通讯电缆参数,RS485通讯电缆执行标准,RS485通讯电缆结构,RS485通讯电缆性能,RS485通讯电缆知识,RS485通讯电缆价格
RS-485通讯电缆特性阻抗为120欧姆

智能电表抄表专用线--RS-485通讯电缆
    本产品是严格按RS-485通讯协议规定设计生产的产品。产品性能**,广泛应用于复杂的工业自动化控制网络及楼宇自控网络

  一、电缆型号:ZHT-RS486-8系(多股低电容计算机及计算机P.O.S电缆) 
 
  二、执行标准:执行标准:Q/ZH09.02-2010

  三、产品结构示意图:

 
 


四、性能参数
 
项目  单位  指标
  1*2*24AWG(8201) 2*2*24AWG(8202) 1*2*24AWG(8901)
2*2*24AWG(8902)
20℃导体标称直流电阻 ohm/1000ft 24 24 24
工作电容(导体-导体) pF/ft 12 12 12
工作电容(导体-屏蔽) pF/ft 22 22 22
标称特殊阻抗 ohm 120 120 120
25℃导体较大导电电流 Amps 4 3.2 4
较大工作电压 V RMS 300V 300V 300V
电缆工作温度范围 ℃                       0℃To +75℃
                      0℃To +75℃  
-70℃To +200℃
-70℃To +200℃
 *小弯曲半径  不大于6倍的电缆外径
 
 
1、应用: Application:
通讯音频、广播音响系统、仪表、电子设备及自动化设置、需防干扰线路屏蔽电线电缆。
供电系统电表远控抄表数据传输线,供水系统水表远程数据传输信号线等 Applicable to communication audio frequency, broadcast sound system, meter, electric equipment and automatic equipment and anti-interference needed circuit shielded wire and cable.
2、产品说明: Product Description:
◆内导体使用多支退火裸铜绞合
◆聚氯乙烯绝缘
◆多芯芯线绞合成缆
◆外包铝箔屏蔽
◆铜线编织屏蔽
◆聚氯乙烯护套
◆额定电压Uo/U为300/300V
◆长期允许工作温度应不超过70℃ ◆Multiple strands annealed bare copper lines twisted as internal conductor
◆PVC insulated
◆Core line with cores twisted into cable
◆Aluminum shielded outside
◆Copper line braid shielded
◆PVC jacket
◆Rated voltage Uo/U is 300/300V
◆Keeping working temperature under 70℃ for long-range operation
RS485通讯线2X0.5 2X0.75 2X1.0 2X1.5
RS485通讯线在一般场**用双绞线就可,但在要求较高的环境下要采用带屏蔽层的双绞电缆。使用RS485通讯线时,对于特定的传输线路,主机(召测设备)到仪表的485口间的电缆长度与数据信号传输的波特率成反比;这个长度主要受信号的失真以及噪声的影响所影响。理论上RS485通信电缆的传输距离能达到1200米,但实际应用中传输距离要小于1200米,具体长度受周围的环境影响。
RS485通信电缆特点:RS-485通讯电缆特性阻抗为120欧姆,导体为2*24AWG多股绞合镀锡铜丝,PE绝缘介质,由铝箔/聚酯复合带100%覆盖+镀锡铜丝90%覆盖共2层屏蔽,附有独立接地导线,工业灰色PVC外护套。
RS485通讯线结构:
1)导体: 多股绞合镀锡铜网线, 每股7支, 每支导体线径为0.30mm, 共四股导体,外径: 0.91 +/- 0.03mm
2)绝缘:实芯PE绝缘, 外径: 1.90 +/- 0.03mm
3)一屏蔽:铝箔屏蔽
4)引流线:多股绞合镀锡铜网线, 每股7支, 每支导体线径为0.30mm, 共一股, 外径: 0.91 +/- 0.03mm
5)**屏蔽:铝镁编织网屏蔽, 覆盖率为55%
6)内护套:黑色PVC, OD: 8.0mm +/- 10%
经测试RS485通讯线较大的通信距离约为1219M,较大传输速率为10Mb/S,传输速率与传输距离成反比,在100Kb/S的传输速率下,才能达到较大的通信距离,如果需传输更长的距离,需要加485中继器。RS485总线一般较大支持32个节点,如果使用特制的485芯片,可以达到128个或者256个节点,较大的可以支持到400个节点。
因RS485接口具有良好的抗噪声干扰性,较长的传输距离和多站能力等上述优点就使其成为优选的串行接口。因为RS485接口组成的半双工网络,一般只需二根连线,所以RS485接口均采用屏蔽双绞线传输。
 
      常规型号:
       常用型号为24AWG,26AWG,有1线对、2线对、3线对、4线对,特殊要求可定做导体有0.2mm2、0.5mm2、0.75mm2

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RS485专用电缆RS485-8*0.34 RS485专用电缆RS485-8*0.34
RS485专用电缆RS485-9841 RS485专用电缆RS485-9841
RS485专用电缆RS485-9843#3*2*24AWG RS485专用电缆RS485-9843#3*2*24AWG
RS485专用电缆RS485ASTP-2*2*24AWG RS485专用电缆RS485ASTP-2*2*24AWG
RS485专用电缆RS485P-2*0.5 RS485专用电缆RS485P-2*0.5
RS485专用电缆RS485-STP-120-2*0.3 RS485专用电缆RS485-STP-120-2*0.3
RS485专用电缆RS485STP-120-2*1.5 RS485专用电缆RS485STP-120-2*1.5
RS485专用电缆RS485SWA-2*18AWG RS485专用电缆RS485SWA-2*18AWG
ZR-RS485专用电缆