Switches

Active/Passive Switches

A(ctive) and P(assive) switches are provided for the Ring In port and for

the Ring Out port for connection to active ( A ) or to passive (P) hubs.

ZDL Switch

The ZDL Switch allows selection of automatic speed detection. NOTE:

The default position is ON. The OFF position is used for connecting non-

802.5 compliant equipment, such as the Hewlet Packard token ring tester.

NOTE: The StackMasterTR 16-Port Hub must be reset when the ZDL

switch position is changed.

Reset Switch

A reset switch is located on the front of the StackMasterTR 16-Port Hub.

The reset switch reinitializes the StackMasterTR 16-Port Unit. If the

SNMP Management Board is installed in the StackMasterTR 16-Port

Unit and the StackMasterTR 16-Port Unit is installed at the top of a

Stack, the reset switch reinitializes the entire Stack.

1-6 StackMaster™TR

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Lobe Ports
Active Retiming Managed Hub
Insert Normal
Power
Ring Out
4 Mbps P
A
16 Mbps
Reset
16 Port StackMaster TR
ZDL
OFF
ON
1234
5678
Expansion Card
Indicators
Enable Status
Ring In
P
A
networks
TRANSITION
P
A
P
A
OFF
ON ZDL
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Lobe Ports
Active Retiming Managed Hub
Insert Normal
Power
Ring Out
4 Mbps P
A
16 Mbps
Reset
16 Port StackMaster TR
ZDL
OFF
ON
1234
5678
Expansion Card
Indicators
Enable Status
Ring In
P
A
networks
TRANSITION
Reset
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Lobe Ports
Active Retiming Managed Hub
Insert Normal
Power
Ring Out
4 Mbps P
A
16 Mbps
Reset
16 Port StackMaster TR
ZDL
OFF
ON
1234
5678
Expansion Card
Indicators
Enable Status
Ring In
P
A
networks
TRANSITION