ABOUT THE TRXMIM FAMILY
Page 1-6
stations from ring to ring. To move a station from one ring to
another, a user simply accesses the Local Management application
and issues a new port assignment. The TRXMIM then switches the
TCU’s port-to-ring connection internally, as illustrated in Figure
1-4, instantly connecting the station to the new ring.
Figure 1-4. Logical Model of Port Assignment and Port Switching
A u x i l i a r y R i n g s
The TRXMIM also hosts two internal auxiliary rings which exist
only within the circuits of the TRXMIM module. Although these
“module-level” auxiliary rings do not have access to the FNB, they
function as complete, independent Token Rings within the module.
This brings the connectivity total to six Token Rings accessible from
any TRXMIM port: two isolated auxiliary rings within the module
itself, and four rings on the FNB which can be used to
intercommunicate with other stations/devices connected to the
same FNB rings via other MIMs in the hub.
FNB ring 1
FNB ring 2
FNB ring 4
FNB ring 3
Port Assignments
made by Token Ring Management Module
are executed internally by TRXMIM.
Electronic reassignment of Port 12 from Ring 2 to Ring 4
TRXMIM-22A
SWITCHING UTP
TOKEN RING
7
X
8
X
9
X
10
X
11
X
12
X
1
X
2
X
3
X
4
X
5
X
6
X
1 2
6
1 1
5
1 0
4
9
3
8
2
7
1
IN USE
A U X 2 - 1 6 M b
A U X 1 - 1 6 M b
R I N G 4 - 1 6 M b
R I N G 3 - 1 6 M b
R I N G 2 - 1 6 M b
R I N G 1 - 1 6 M b
BYP
IN USE
IN USE
IN USE
IN USE
IN USE
MGNT
ERR
-PORTS-
