GarrettCom DS8016 - Manual (Page 14)

Magnum DS8016 Dual-Speed Stackable Hubs Installation and User Guide (07/06)
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Another DS8016 model, the DS8016-A, has no switch module inside, but is dual
speed and is normally used stacked with a DS8016-B for dual-speed port expansion.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 X
UPLIN
LK/R PORT 100 1 2 3 4 5 6 7 8 9 10 11 12 13 14
PWRBR
COL
COL
Magnum DS8016 Stackable Hub
DS8016-A
DS8016-B
Bridge
1 2 3 4 5 6 7 8 9 10 11
12 13 14 15 16
X
UPLIN
LK/R PORT 100 1 2 3 4 5 6 7 8 9 10 11 12 13 14
PWRBR
COL
COL
Magnum DS8016 Stackable Hub
Figure 2.2 b : The DS8016-B is a DS8016 with a bridge module built-in for 10 and
100Mb
Only one DS8016-B unit is needed to support a stack. Additional 16-port units of
the DS8016-A “add-on” and/or DS8016-E “100-only” hubs . . . units that do not have the
bridge module inside, and which cost less accordingly . . . can be added to the stack, up to the
3-unit stack maximum. In a stack, the DS8016-B unit (illustrated below as the bottom unit)
can be in any stack position.
Figure 2.2 c : Stack of DS8016’s, 2@ DS8016-A’s and 1 @ DS8016-B
DS8016-A units can also be used without a DS8016-B, whereupon they will
function as dual-speed stackable hubs. This could be desired if an external non-auto-sensing
switch (such as the Magnum 300ES Two-Port Switch) is available to interconnect the two
speed domains, or if only 100Mb devices are connected (use the DS8016-E for this? See
2.2.3 below) and the 10Mb domain is unused, or if dual-speed operation with two
unconnected and uncoordinated domains is needed for the application.
Each DS8016 has its own internal power supply, and is easily added to an existing 10 or
100Mb network. DS8016s are suitable for wiring closet shelf, table-top or 19” rack-
mounting. Optional brackets for 23” telco rack-mounting are available.
2.2.1 Magnum DS8016 Chassis
The Magnum DS8016 chassis houses one main PC board, a bridge module daughter- board
in the Model DS8016-B and DS8016-R, and an internal power supply unit. The front side of
the chassis has sixteen RJ-45 twisted-pair ports, one of which (Port #1X on the left-front) can
be used for cascading (UP-LINK).