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1. Introduction
The TRANSITION Networks 16-Port StackMaster™TR Active Retiming
Managed Hubs are designed for building SNMP managed token ring LANs
using twisted pair cable.
The StackMaster™TR Managed Hub:
• Complies with current IEEE 802.5 token ring standards to ensure
interoperability
• Supports external SNMP network management
• Provides sixteen RJ-45 lobe ports support both STP and UTP
• Provides active signal retiming and regeneration on a per port basis
maximizes lobe and RI/RO cable runs
• Supports Category 3, 4 or 5 UTP/STP and IBM Type 1 Cable
• Allows 4 or 16 Mbps operation
• Allows RI/RO connection to both “active hubs” and “passive hubs”
• Delivers fault-tolerant, automatic ring wrap capability at RI/RO
• Provides Zero Delay Lockout, automatic lockout of station configured
at wrong speed
• Installed as standalone or rackmount in a standard 19” rackmount
frame.
• Provides serial port connection for Out of Band management.
NOTE: The StackMaster™TR 16-Port Hub is designed to support an
Active Retime environment with HOT SWAP capability. An active hub
can be added or removed without bringing the network down.
USER’S GUIDE
1-1
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
5
6
78
Expansion Card
Indicators
Enable
Status
Ring In
P
A
networks
TRANSITION