| Title: | DEChub/HUBwatch/PROBEwatch CONFERENCE |
| Notice: | Firmware -2, Doc -3, Power -4, HW kits -5, firm load -6&7 |
| Moderator: | NETCAD::COLELLA DT |
| Created: | Wed Nov 13 1991 |
| Last Modified: | Fri Jun 06 1997 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 4455 |
| Total number of notes: | 16761 |
Hi,
can someone clear up a query around the Dechub90's
power supply limits:
One of the reasons for the limit of only one Bridge90 as stated in the
installation guide was that the backplane 12v power supply could
only support one transceiver circuit.
Now that we have repeater modules that use AUI interfaces, I take
it that this rule can no longer be valid
Therefore, how many repeaters (with AUI) can be used in a Dechub
and how many Decbridges? In which slots?
I believe some of the original rules were not so much true but
designed to make sure people didnt configure work groups of >200
nodes. Assuming this is not an issue, what are the 'real' rules
or a pointer to them
thanks
John Reynolds, UK CSC, comms support.
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 538.1 | Rules! You want rules! | CGOS01::DMARLOWE | dsk dsk dsk (tsk tsk tsk) | Mon Dec 06 1993 12:20 | 12 |
Only slots 7 and 8 have the 12V required to run the AUI port. You
can therefore put ANY two devices that have AUI ports (or require
additional power, ie. DECagent 90) into these ports. That means two
DECbridge 90's or two DECagent 90's or DECrepeater 90FA's or one
DECbridge 90 and one DECagent 90 or one bridge or agent and a
DECrepeater 90FA, etc. But only slots 7 and 8 for the above
combinations.
You can put (so I've been told) the DECrepeater 90FA in any slot
if you do not use the AUI port.
dave
| |||||
| 538.2 | QUIVER::SLAWRENCE | Mon Dec 06 1993 13:40 | 2 | ||
There are no such restrictions in the DEChub 900; all slots are equally
capable.
| |||||
| 538.3 | thanks a lot | COMICS::REYNOLDS | Mad Dogs and Englishmen | Wed Dec 08 1993 12:41 | 1 |