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Chapter 4: Installation
4-8 SEH100TX User’s Guide
4.4.2 Stacking Unmanaged SEH Hubs Together
Use the following procedure to stack non-intelligent hubs (SEHs)
together.
1. Power up each SEH in the stack by plugging the power cord into the
back panel of the SEH and plugging the other end into a grounded
receptacle.
2. Verify that the PWR LED for each hub is on, indicating that each SEH
is receiving power.
3. Attach the interconnect cable to the “IN” port on the rear panel of the
second SEH in the stack as shown in Figure 4-5.
4. Attach the other end of the interconnect cable to the “OUT” port on the
rear panel of the first SEH in the stack.
5. Continue connecting ports in this manner until all hubs are connected.
4.5 INSTALLING AN EPIM
This section contains procedures on how to replace an EPIM-100TX,
EPIM-100FX, or EPIM-100FMB to upgrade or change the capabilities of
your SEH100TX-22. After installing a new EPIM, refer to the appropriate
EPIM section in Appendix A to verify proper operation.
NOTE
The SEH has a universal power supply that allows connection
to power sources from 100 Vac to 125 Vac @ 4.0 A or 200 Vac
to 250 Vac @ 2.0 A, 50/60 Hz.
!
CAUTION
Do not leave an interconnect cable connected at only one end
during network operation. Corrupted data may result.
!
CAUTION
Observe all static precautions while handling an EPIM.