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Appendix C
Initialization Information
On power-up or reset, the OM 1000 undergoes an automatic initialization process during which
it loads the executable software and parameter settings that control its operation. Depending on
the headend network configuration, the OM 1000 performs initialization either by self-booting
from internal flash memory or by downloading information from an external BOOTP server.
Initializing the OM 1000 using the self-boot option enables you to operate the OM 1000:
Without connecting it to the headend LAN
In a headend LAN that does not include a BOOTP server
Initializing the OM 1000 using the download option enables you to:
Modify the setup of an installed OM 1000 to accommodate changes in the digital headend
configuration
Load upgraded executable software into an installed OM 1000
Self-Boot Option
The OM 1000 begins initialization by broadcasting a BOOTP request over its Ethernet port.
When initializing with the self-boot option, the OM 1000 times out waiting for a reply and then
initializes itself from the information stored in its flash memory.
Download Option
To initialize the OM 1000 using the download option:
The OM 1000 must be connected to the headend Ethernet LAN
A BOOTP server must be present in the LAN
The BOOTP server must know the OM 1000 MAC address
The OM 1000 begins initialization by broadcasting a BOOTP request over its Ethernet port. The
BOOTP server receives the OM 1000 BOOTP request and provides a reply from which the
OM 1000 initializes itself.
OM 1000 Installation and Operation Manual
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