Digital Equipment DEChub ONE Repeater 900SL Скачать руководство пользователя страница 3

 1) Power LED. Lights when the repeater has power.

 2) Module OK LED. Lights when the repeater passes

self-test. If the repeater fails self-test, the Module OK
LED is off.

 3) Ring A/B LEDs. In a DEChub 900 MultiSwitch, 

when either the A LED or the B LED is on, the 
respective A or B ring is active. In a standalone 
repeater, both Ring LEDs are always off.

 4) Speed LEDs. Either the 16 LED or the 4 LED is on

to show the ring speed.

 
 5) Ring In LED. Lights when a Ring In connection is 

active.

 6) Ring Out LED. Lights when a Ring Out connection

is active.

 7) Speed Switch. Sets speed. Set to 16 when the 

network speed is 16 Mb/s.  Set to 4 when the 
network speed is 4 Mb/s. Network management 
cannot override Speed switch settings.

 8) Ring In Port.  Connects Ring In to the Ring Out port

of a repeater or Multistation Access Unit (MAU).

 9) Autowrap Switches. Determine whether or not the

repeater automatically loops back when it detects a
disconnected link on Ring In or Ring Out. If the Ring
In or Ring Out port connects to a device with Digital’s
Autowrap, set the switch to 1 to enable Autowrap.  If
the Ring In or Ring Out port connects to a device 
without Digital’s Autowrap, set the switch to 0 to 
disable Autowrap.

10) Ring Out Port. Connects Ring Out to the Ring In port

of a repeater or Multistation Access Unit (MAU).

 
11) Reset Switch.
 Resets all settings, except for the 

Speed  switch setting, to their factory defaults. To
reset: while turning on the power, press the reset 
switch with a pen or screwdriver.

Front Panel

DECrepeater 900TL

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LKG-8155-93I

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Содержание DEChub ONE Repeater 900SL

Страница 1: ...t operates at a speed of 4 or 16 Mb s It extends trunk and lobe distances for unshielded and shielded 100 ohm cable As a member of Digital s Token Ring product family it operates in a DEChub 900 Multi...

Страница 2: ...o change without notice and should not be construed as a commitment by Digital Equipment Corporation Digital Equipment Corpo ration assumes no responsibility for any errors that may appear in this doc...

Страница 3: ...t override Speed switch settings 8 Ring In Port Connects Ring In to the Ring Out port of a repeater or Multistation Access Unit MAU 9 Autowrap Switches Determine whether or not the repeater automatica...

Страница 4: ...n here is used only when the repeater is in a standalone configuration 12 Power Connector Provides power connection for the repeater DEChub ONE only Rear Panel of DEChub ONE Repeater 900TL 4 DECrepeat...

Страница 5: ...tiSwitch DECrepeater 900TL 5 Set Speed switch Set the Speed switch to 16 when the network speed is 16 Mb s or 4 when the speed is 4 Mb s LKG 8150 93I LKG 8151 93I a Lift up the latch on the rear cover...

Страница 6: ...DEChub 900 MultiSwitch continued 6 DECrepeater 900TL Install the repeater on the hub PK 02570 IL a Align the repeater s 48 pin connector with any available 48 pin slot in the hub b Place the repeater...

Страница 7: ...standard 19 inch rack using a shelf assembly Digital part number H9544 MS For a wall mounting position two screws 19 7 centimeters 7 75 inches apart on the wall Turn the screws until tight and then b...

Страница 8: ...Out port of the adjacent MAU or repeater d Once the ring becomes active verify that the Ring In and Ring Out LEDs are on Connect a MAU repeater or station Installing a DEChub ONE Repeater 900TL conti...

Страница 9: ...ts bottom mounting tab until it disengages from the hub DECrepeater 900TL 9 Note When you remove a repeater from the DEChub 900 MultiSwitch do not turn off the hub power Remove the repeater from the h...

Страница 10: ...crolling pattern Ring Speed Notes Even if you set the repeater s Speed switch to the wrong speed no data will be lost or corrupted Traffic loops back at the point where there is a speed mismatch and t...

Страница 11: ...y possible with a DECrepeater 900TL Digital recommends that you keep cable lengths within the maximums found in the industry guideline to allow for future network expansion and upgrade Table 2 Industr...

Страница 12: ...k with multiple wiring closets When distances exceed the lobe lengths in Table 2 or if the MAU does not have Digital s Autowrap functionality two repeaters are required When a MAU has Autowrap enabled...

Страница 13: ...upgrade If you have network management flash or an upgrade is in progress do a downline load otherwise replace repeater Wait for upgrade to complete Ring In or Ring Out LED has Network management To...

Страница 14: ...DEChub 900 MultiSwitch in a DEChub 90 Ethernet networks supports Token Ring networks DEChub ONE ONLY Ring In and Ring Out LEDs Network management has To change settings you can use flash together dis...

Страница 15: ...0 ft Power Supply Hub provides Provided by H7082 AB Input Power 7 W 5 Vdc 7 W 5 Vdc Connectors RJ 45 RJ 45 Agency certification CE CSA FCC T V CE CSA FCC T V UL VCCI VDE UL VCCI VDE Acoustics Prelimin...

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