[DC] Hubs question...

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[DC] Hubs question...

文章XO (叉叉圈圈) » 週一 1月 12, 1998 2:32 am

【 在 feimin (汪嚕‧小明) 的大作中提到: 】
: Hai sir, feel nice to have you to teach us.. ^_^
: Long ago, 我的的長對我說, 有 active 與 pasive hubs..
: but until now, from the book, just have active maus and passive maus..
: 想請問老師, 市面上有賣 active 與 pasive hubs 嗎??
: Thanks...
: 學生慧明

在 ARCNET 世界裡, HUB 分 ACTIVE HUB 及 PASSIVE HUB,通常 ACTIVE HUB 有
8 個 ports,可接另一個 ACTIVE HUB or PASSIVE HUB,或是直接接 W/S,PASSIVE
HUB 有四個 PORTS,除一頭接自 ACTIVE HUB 外,其餘 3 個 PORTS 只可接 W/S,
PASSIVE HUB is kind of a splitter, splitting the incoming signal from
active hub into the other 3 ports. Passive hub can not be extended with
another Passive hub.

Usually the cable between two active hubs can be longer than the cable
between a active hub and a passive hub. (I don't recall the exact cable
length, however if you like I can find it for you.)

The ARCNET constructed this way is typically called

Phycically a tree topology, however logically a bus ----> token bus
--
㊣XO 考試期間我是(叉叉圈圈)「是非題」..... 仍舊不是酒
**** 更正我的 UIN: 6417878 (前此誤打成 6147878)

※ 來源:‧輔大資管藍天小館 cypher.im.fju.edu.tw‧[FROM: TS2-PPP-18.fju.]
文章代號, L\A000201L
XO (叉叉圈圈)
 

Re:[DC] Hubs question...

文章XO (叉叉圈圈) » 週一 1月 12, 1998 2:32 am

【 在 feimin (汪嚕‧小明) 的大作中提到: 】
: Hai sir, feel nice to have you to teach us.. ^_^
: Long ago, 我的的長對我說, 有 active 與 pasive hubs..
: but until now, from the book, just have active maus and passive maus..
: 想請問老師, 市面上有賣 active 與 pasive hubs 嗎??
: Thanks...
: 學生慧明

在 ARCNET 世界裡, HUB 分 ACTIVE HUB 及 PASSIVE HUB,通常 ACTIVE HUB 有
8 個 ports,可接另一個 ACTIVE HUB or PASSIVE HUB,或是直接接 W/S,PASSIVE
HUB 有四個 PORTS,除一頭接自 ACTIVE HUB 外,其餘 3 個 PORTS 只可接 W/S,
PASSIVE HUB is kind of a splitter, splitting the incoming signal from
active hub into the other 3 ports. Passive hub can not be extended with
another Passive hub.

Usually the cable between two active hubs can be longer than the cable
between a active hub and a passive hub. (I don't recall the exact cable
length, however if you like I can find it for you.)

The ARCNET constructed this way is typically called

Phycically a tree topology, however logically a bus ----> token bus
--
㊣XO 考試期間我是(叉叉圈圈)「是非題」..... 仍舊不是酒
**** 更正我的 UIN: 6417878 (前此誤打成 6147878)

※ 來源:‧輔大資管藍天小館 cypher.im.fju.edu.tw‧[FROM: TS2-PPP-18.fju.]
文章代號, P\A0TJEARP
XO (叉叉圈圈)
 


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