Installation and Reference Guide HP AdvanceStack 100Base-THub-12TX, Hub-12TXM, and Switch Modules 1997-06

Hardware Reference 5-1
Chapter 5: Hardware Reference
Before connecting any network device to this hub, please
review Chapter 2 for information on system installation,
Chapter 3 for a brief look at common network architectures,
and Chapter 4 for information on system configuration via the
menu-driven VT-100 console interface. This chapter describes
the hardware features of the AdvanceStack Hub-12TX/Hub-
12TXM. If you are not sure how to make network connections,
or do not understand the hub’s indicators, you should refer to
this chapter.
The Hub-12TX/Hub-12TXM provides a manageable 100
Mbit/s Fast Ethernet stack. It also supports optional network
Switch Port Modules that can be used to connect the hub (or
stack) to the extended network with 10/100Base-TX or
100Base-FX media types. Moreover, these Switch Port
Modules serve to break up the local collision domain, allowing
you to overcome the limited network diameter normally
associated with Fast Ethernet.
This hub provides a simple interface for configuring or
monitoring network connections. Figure 5.1 shows the front
panel, which includes a comprehensive array of indicators, 12
RJ-45 station ports, and an Expansion Slot for plugging in an
optional Switch Port Module. Each Hub-12TX/Hub-12TXM
model has similar indicators and other front panel components.
However, note that the Management Mode LEDs,
Master and
Backup, are only present on the Hub-12TXM.
Figure 5.1 Front Panel of the Hub-12TXM