Hughes Network Systems 24HX-001 Manual De Usuario

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1027145 – 0001   Revision E
 10–2  Maintenance
Hub installation
Notify the EMS operator before you add or move SSIs. Make
sure the EMS operator has performed any prerequisite steps that
may be necessary before you add or move an SSI.
For instructions on replacing SSIs, see section 10.6.
CAUTION
Always wear a new or recently tested
electrostatic discharge (ESD) wrist strap
(figure 6-16) when handling circuit
modules. Failure to use a wrist strap may
result in damage to components.
You can install additional SSIs while the system is powered on. To
add an SSI, follow the instructions in section 6.5 (page 6–28).
After installing an SSI, use the CCM LCD Status function to
check its operational status. The LCD should display 
OK
. (For an
explanation of the CCM LCD Status function, see section 7.3.)
SSIs are hot–swappable, meaning you can move them from one
slot to another or to another chassis while the chassis are powered
on.
Important: 
Install the OC3c–ATM SSI in chassis slot 3 only,
and install the DS3–TDM SSI in slot 5 only.
To move an SSI:
1.
Loosen the thumbscrews at each end of the SSI.
2.
Using an ESD wrist strap connected to a chassis ground
terminal, slide the SSI out of its slot.
3.
Move the SSI to its new location and insert it into the slot.
4.
Tighten the thumbscrews at each end of the SSI.
5.
Use the CCM LCD to check the SSI status. (For details, see
section 7.3).
10.1
Adding or moving
SSIs
Adding SSIs
Moving SSIs