| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 684.1 | 7 ports | SLINK::HOOD | I'd rather be surfing | Wed Feb 02 1994 18:32 | 7 |
| 7 ports on a DECbridge 900MX...
1: FDDI A/B
2: Ethernet AUI
3-6:Ethernet 10baseT
7: Ethernet AUI
Tom Hood
|
| 684.2 | | QUIVER::SLAWRENCE | | Thu Feb 03 1994 15:38 | 8 |
| The AUI interfaces can go to thickwire transceivers or, using adapters,
to any other ethernet medium.
The thinwire ports can go to an endstation or a repeater. The port on
the bridge is crossed, so for our repeaters you would use a straight
through cable (because the repeater port is not crossed). For an end
station, which like the bridge would normally have a crossed port, you
would use a crossed cable. You need an odd number of crosses.
|
| 684.3 | Who has the cross when the whistle blows? | CGOS01::DMARLOWE | dsk dsk dsk (tsk tsk tsk) | Thu Feb 03 1994 17:15 | 19 |
|
>> The thinwire ports can go to an endstation or a repeater. The port on
Don't you mean the RJ45 ports?
>> the bridge is crossed, so for our repeaters you would use a straight
>> through cable (because the repeater port is not crossed). For an end
According to Ed Buzzell, the RJ45 ports on the DB900 are straight.
If you were to put a 10BaseT MAU on the AUI port that should still
be a straight thru connection. Normally only repeater ports are
internally crossed (except for our DETPR).
So going from a DB900 with 10BaseT (either RJ45 or a MAU) to an
end station you would need a crossed patch cable. But going to
a repeater (90T or 900TM) you would use a straight cable as the
repeater has the cross.
dave
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| 684.4 | | QUIVER::SLAWRENCE | | Thu Feb 03 1994 17:22 | 1 |
| Oops - slip of the keyboard - I did mean the RJ45 10baseT
|
| 684.5 | | LEVERS::ANIL | | Fri Feb 04 1994 22:34 | 3 |
| The 10BaseT RJ45 ports on DB900MX are crossover connectors.
Anil
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| 684.6 | Cable types that might be needed on 10baseT ports... | LEVERS::BATTERSBY | | Wed Mar 02 1994 17:55 | 13 |
| Types of cables that can be used on DB900MX 10baseT RJ45 ports....
Depending on whether one needs extra crossover or not.
Straight cables:
BN24G-XX or BN26K-XX
Cross-over cable:
BN24K-XX
Bob
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