baikgd的博客

技术是工具，生活是目的，更好的生活是目标！

日志

关于我

baikgd

文章分类

RJ-45与RJ-48的区别

2009-08-13 16:07:37| 分类：工作日志 | 标签： |举报 |字号大中小订阅

下载LOFTER 我的照片书 |

RJ45接头:

用于以太网(Ethernet 10/100/1000M UTP/STP接口),常用于5类非屏蔽双绞线.RJ-45也用于ISDN等其它接口,针脚定义不同.

RJ48接头:

用于连接T1,E1串行线路,通常采用屏蔽双绞线;RJ-48还可以支持PIN3,PIN6做接地连接.

RJ45和RJ48线序相同,都是从左往右为87654321,但信号定义不同:

RJ45:

10/100M用1/2/3/6针. 1000M用全部8根针.

RJ48:

一般常见为RJ-48C和RJ-48S,用1/2/4/5针.

CT1/PRI-CSU (RJ-48C)信号定义如下,

RJ-48C Pin Description

1 Receive Ring

2 Receive Tip

4 Ring

5 Tip

对于T1/E1 Trunk and Digital Voice Port (RJ-48) Pin1 Signal

1 RX + (input)

2 RX - (input)

3 —

4 TX + (output)

5 TX - (output)

6 —

7 —

8 —

参考资料:

E1(2M传输链路)和shdsl/hdsl/sdsl一样都是最后一公里的传输技术.

数字数据网(Digital Data Network)是利用数字信道传输数据信号的数据传输网，从本质上来说，是一种电路交换网络。

FR是一种分组交换网络技术。可以划分虚电路。

可以将DDN、FR、ATM等都看做骨干网技术。DDN结点机、FR交换机、ATM接入交换机这些设备是各自网络的最边缘设备。从这些设备到用户都可能会使用到E1、SHDSL、HDSL、SDSL等最后一公里的传输技术。由于FR、ATM本身支持PVC，相应地在做点到多点的接入时，不需要使用信道化E1。对于e1来说，一般是光纤到用户，从光端机出来bnc接口。可以转换为RJ48的接口。最高速率为2Mbps，是一条时分线路。又称为信道化E1。

上路由器的接法有两种： 　

1、用BNC-E1线缆(这里的E1端包括：RJ48、DB15等多种接口形式) 直接接E1模块 　

2，如果用WIC-1T模块，那么就用一个G.703-----v.35的协议转换器后用V。35线缆接WIC---1T模块。

shdsl/hdsl/sdsl都是用户数据线路，一般使用一对或两对电话线到用户，接口为rj11或rj48。最高速率可以达到2M bps或更高。虽然xdsl技术可以达到2M的速率，但目前我还没听说过可以在dsl线路上跑信道化E1的.

RJ-48 Pin (on T1/E1 PIC) (Data numbering form)	RJ-48 Pin (Data numbering form)	Signal
1	1	RX, Ring, -
2	2	RX, Tip, +
4	4	TX, Ring, -
5	5	TX, Tip, +
3	3	Shield/Return/Ground
6	6	Shield/Return/Ground
7	No connect	No connect
8	No connect	No connect
9	No connect	No connect
10	No connect	No connect
11	No connect	No connect
12	No connect	No connect
13	No connect	No connect
14	No connect	No connect
15	No connect	No connect

RJ-48 Pin (on T1/E1 PIC) (Data numbering form)	RJ-48 Pin (Data numbering form)	Signal
1	4	RX/Ring/- <-->TX/Ring/-
2	5	RX/Tip/+ <-->TX/Tip/+
4	1	TX/Ring/- <-->RX/Ring/-
5	2	TX/Tip/+ <-->RX/Tip/+
3	3	Shield/Return/Ground
6	6	Shield/Return/Ground
7	No connect	No connect
8	No connect	No connect
9	No connect	No connect
10	No connect	No connect
11	No connect	No connect
12	No connect	No connect
13	No connect	No connect
14	No connect	No connect
15	No connect	No connect

RJ-48 Pin (on T1/E1 PIC) (Data numbering form)	DB-15 Pin (Data numbering form)	Signal
1	11	RX/Ring/- <-->RX/Ring/-
2	3	RX/Tip/+ <-->RX/Tip/+
4	9	TX/Ring/- <-->TX/Ring/-
5	1	TX/Tip/+ <-->TX/Tip/+
3	4	Shield/Return/Ground
6	2	Shield/Return/Ground
7	No connect	No connect
8	No connect	No connect
9	No connect	No connect
10	No connect	No connect
11	No connect	No connect
12	No connect	No connect
13	No connect	No connect
14	No connect	No connect
15	No connect	No connect

RJ-48 Pin (on T1/E1 PIC) (Data numbering form)	DB-15 Pin (Data numbering form)	Signal
1	9	RX/Ring/- <-->TX/Ring/-
2	1	RX/Tip/+ <-->TX/Tip/+
4	11	TX/Ring/- <-->RX/Ring/-
5	3	TX/Tip/+ <-->RX/Tip/+
3	4	Shield/Return/Ground
6	2	Shield/Return/Ground
7	No connect	No connect
8	No connect	No connect
9	No connect	No connect
10	No connect	No connect
11	No connect	No connect
12	No connect	No connect
13	No connect	No connect
14	No connect	No connect
15	No connect	No connect

Table 26: RJ-48 Connector to RJ-48 Connector (Straight) Pinout

RJ-48 Pin (on T1/E1 PIC)
(Data numbering form)
RJ-48 Pin
(Data numbering form)
Signal
1
1
RX, Ring, -
2
2
RX, Tip, +
4
4
TX, Ring, -
5
5
TX, Tip, +
3
3
Shield/Return/Ground
6
6
Shield/Return/Ground
7
No connect
No connect
8
No connect
No connect
9
No connect
No connect
10
No connect
No connect
11
No connect
No connect
12
No connect
No connect
13
No connect
No connect
14
No connect
No connect
15
No connect
No connect

Table 27: RJ-48 Connector to RJ-48 Connector (Crossover) Pinout

RJ-48 Pin (on T1/E1 PIC)
(Data numbering form)
RJ-48 Pin
(Data numbering form)
Signal
1
4
RX/Ring/- <-->TX/Ring/-
2
5
RX/Tip/+ <-->TX/Tip/+
4
1
TX/Ring/- <-->RX/Ring/-
5
2
TX/Tip/+ <-->RX/Tip/+
3
3
Shield/Return/Ground
6
6
Shield/Return/Ground
7
No connect
No connect
8
No connect
No connect
9
No connect
No connect
10
No connect
No connect
11
No connect
No connect
12
No connect
No connect
13
No connect
No connect
14
No connect
No connect
15
No connect
No connect

Table 28: RJ-48 Connector to DB-15 Connector (Straight) Pinout

RJ-48 Pin (on T1/E1 PIC)
(Data numbering form)
DB-15 Pin
(Data numbering form)
Signal
1
11
RX/Ring/- <-->RX/Ring/-
2
3
RX/Tip/+ <-->RX/Tip/+
4
9
TX/Ring/- <-->TX/Ring/-
5
1
TX/Tip/+ <-->TX/Tip/+
3
4
Shield/Return/Ground
6
2
Shield/Return/Ground
7
No connect
No connect
8
No connect
No connect
9
No connect
No connect
10
No connect
No connect
11
No connect
No connect
12
No connect
No connect
13
No connect
No connect
14
No connect
No connect
15
No connect
No connect

Table 29: RJ-48 Connector to DB-15 Connector (Crossover) Pinout

RJ-48 Pin (on T1/E1 PIC)
(Data numbering form)
DB-15 Pin
(Data numbering form)
Signal
1
9
RX/Ring/- <-->TX/Ring/-
2
1
RX/Tip/+ <-->TX/Tip/+
4
11
TX/Ring/- <-->RX/Ring/-
5
3
TX/Tip/+ <-->RX/Tip/+
3
4
Shield/Return/Ground
6
2
Shield/Return/Ground
7
No connect
No connect
8
No connect
No connect
9
No connect
No connect
10
No connect
No connect
11
No connect
No connect
12
No connect
No connect
13
No connect
No connect
14
No connect
No connect
15
No connect
No connect

评论这张

转发至微博

阅读(2116)| 评论(0)

历史上的今天

this.p={  m:2,
              b:2,
              loftPermalink:'',
              id:'fks_082069080085088066086084087095087083085067086082095070',
              blogTitle:'RJ-45与RJ-48的区别',
              blogAbstract:'<span style=\"font-family: Arial, Helvetica, sans-serif; color: rgb(174, 174, 174);\"  \><p style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 10px; margin-left: 0px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; color: rgb(174, 174, 174); line-height: 22px;\"  \><font color=\"#ff00ff\"  size=\"4\"  style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; line-height: 28px;\"  \><strong style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; line-height: 28px;\"  \>RJ45接头:</strong\></font\></p\></span\>',
              blogTag:'',
              blogUrl:'blog/static/3540249520097134737855',
              isPublished:1,
              istop:false,
              type:0,
              modifyTime:1316794946626,
              publishTime:1250150857855,
              permalink:'blog/static/3540249520097134737855',
              commentCount:0,
              mainCommentCount:0,
              recommendCount:0,
              bsrk:-100,
              publisherId:0,
              recomBlogHome:false,
              currentRecomBlog:false,
              attachmentsFileIds:[],
              vote:{},
              groupInfo:{},
              friendstatus:'none',
              followstatus:'unFollow',
              pubSucc:'',
              visitorProvince:'',
              visitorCity:'',
              visitorNewUser:false,
              postAddInfo:{},
              mset:'000',
              mcon:'',
              srk:-100,
              remindgoodnightblog:false,
              isBlackVisitor:false,
              isShowYodaoAd:false,
              hostIntro:'',
              hmcon:'1',
              selfRecomBlogCount:'0',
              lofter_single:'<iframe width="140" height="560" style="overflow:hidden;" src="http://www.lofter.com/mailEntry.do?blogad=1&blog" frameBorder="0"></iframe>'
            }

{list a as x}
    {if !!x}
    <div class="iblock nbw-fce nbw-f40">
      <a class="fc03 noul" target="_blank" hidefocus="true" href="http://blog.163.com/${x.visitorName}/">
      {if x.visitorName==visitor.userName}
      <img alt="${x.visitorNickname|escape}" onerror="this.src=location.f40" class="cwd bdwa bdc0" src="${fn1(x.visitorName)}&r=${visitor.imageUpdateTime}"/>
      {else}
      <img alt="${x.visitorNickname|escape}" onerror="this.src=location.f40" class="cwd bdwa bdc0" src="${fn1(x.visitorName)}"/>
      {/if}
      </a>
      <div class="cwd vname thide">
        {if x.moveFrom=='wap'}
          <a class="noul pnt" target="_blank" href="http://blog.163.com/services/wapblog.html?frompersonalbloghome"><span title="来自网易手机博客" class="iblock wapIcon"> </span></a>
        {elseif x.moveFrom=='iphone'}
          <a class="noul pnt" target="_blank"><span title="来自iPhone客户端" class="iblock iphoneIcon"> </span></a>
        {elseif x.moveFrom=='android'}
          <a class="noul pnt" target="_blank"><span title="来自Android客户端" class="iblock androidIcon"> </span></a>
        {elseif x.moveFrom=='mobile'}
          <a class="noul pnt" target="_blank" href="http://blog.163.com/services/emsblog.html?frompersonalbloghome"><span title="来自网易短信写博" class="iblock wapIcon"> </span></a>
        {/if}
        <a class="fc03 m2a"  target="_blank" hidefocus="true" href="http://blog.163.com/${x.visitorName}/">
          ${fn(x.visitorNickname,8)|escape}
        </a>
      </div>
    </div>
    {/if}
    {/list}

<#--最新日志，群博日志--> <#--推荐日志-->

<p class="fc06">推荐过这篇日志的人：</p>
    <div>
      {list a as x}
      {if !!x}
      <div class="iblock nbw-fce nbw-f40">
        <a class="fc03 noul" target="_blank" hidefocus="true" href="http://blog.163.com/${x.recommenderName}/">
        <img alt="${x.recommenderNickname|escape}" onerror="this.src=location.f40" class="cwd bdwa bdc0" src="${fn1(x.recommenderName)}"/>
        </a>
        <div class="cwd thide">
          <a class="fc03 m2a" target="_blank" hidefocus="true" href="http://blog.163.com/${x.recommenderName}/">
            ${fn(x.recommenderNickname,6)|escape}
          </a>
        </div>
      </div>
      {/if}
      {/list}
    </div>
    {if !!b&&b.length>0}
    <p  class="fc06">他们还推荐了：</p>
    <ul>
    {list b as y}
      {if !!y}
        <li class="rrb"><span class="iblock">·</span><a class="fc03 m2a" target="_blank" href="http://blog.163.com/${y.recommendBlogPermalink}/?from=blog/static/3540249520097134737855">${y.recommendBlogTitle|escape}</a></li>
      {/if}
    {/list}
    </ul>
    {/if}

<#--引用记录--> <#--博主推荐--> <#--随机阅读--> <#--首页推荐--> <#--历史上的今天--> <#--被推荐日志--> <#--上一篇，下一篇--> <#-- 热度 -->

{list a as x}
    {if !!x}
    <div class="hotItem iblock nbw-fce nbw-f40">
      <a class="fc03 noul" target="_blank" hidefocus="true" href="http://blog.163.com/${x.publisherUsername}/">
      {if x.publisherUsername==visitor.userName}
      <img alt="${x.publisherNickname|escape}" onerror="this.src=location.f40" class="cwd bdwa bdc0" src="${fn1(x.publisherUsername)}&r=${visitor.imageUpdateTime}"/>
      {else}
      <img alt="${x.publisherNickname|escape}" onerror="this.src=location.f40" class="cwd bdwa bdc0" src="${fn1(x.publisherUsername)}"/>
      {/if}
      </a>
      <div class="cwd vname thide">
        <a class="fc03 m2a"  target="_blank" hidefocus="true" href="http://blog.163.com/${x.publisherUsername}/">
          ${fn(x.publisherNickname,8)|escape}
        </a>
      </div>
      <a class="f-myLikeIcons hottype {if x.type==1} js-liketype{elseif x.type==2} js-reblogtype{elseif x.type==3} js-sharetype{else}{/if}" target="_blank" hidefocus="true" href="http://blog.163.com/${x.publisherUsername}/"> </a>
    </div>
    {/if}
    {/list}

<#-- 网易新闻广告 --> <#--右边模块结构--> <#--评论模块结构--> <#--引用模块结构--> <#--博主发起的投票-->

页脚

我的照片书 - 手机博客 - 下载LOFTER APP - 订阅此博客

baikgd的博客

导航

日志

RJ-45与RJ-48的区别

历史上的今天

最近读者

热度

评论

页脚