Comtech EF Data SMS-7000 - Manual (Page 113)

Rev. 3 5–1
5
Chapter 5.
MAINTENANCE
This chapter provides maintenance and troubleshooting information.
5.1 Periodic Maintenance
There is no periodic maintenance required to ensure proper switch operation.
5.2 Software Revisions
Installation of revised controller software may be necessary at times for implementing
additions or enhancing features and/or corrective actions. Control software resides in a
programmable device inside the one unit (1U) switch control chassis (AS/4800). To
replace software:
C AU TIO N
When replacing the switch software, the previous switch configuration and
loaded modem configurations will be lost.
1. Disconnect switch power.
2. Disconnect and remove switch controller from equipment rack.
3. Remove top cover fasteners and cover.
4. Remove and replace U30 on printed circuit assembly AS/4518. U30 is a
socketed device.