Pelco C1572M Manuel d'utilisateur télécharger pdf (Page 55)

54 C1566M-C (10/05)

MOUNTING THE CM9780-MXB IN AN OPEN RACK

Figure 46. Mounting the CM9780-MXB in an Open Rack

DOS ENVIRONMENT AND COMMAND REFERENCE

DOS stands for Disk Operating System. Every time you turn on the CM9700-CC1 or every time you reboot (Alt +Ctrl +Del), the computer loads DOS

from the CC1 disk into the memory (RAM). Once loaded DOS lets you run other programs, in particular, the CM9700.EXE program.

On factory-conﬁgured systems the autoexec.bat ﬁle is conﬁgured for one of the following scenarios:

• The boot process ends at the following system prompt (c:\9700>).

• The boot process loads and executes the CM9700.EXE program.

THE BOOT PROCESS

The following process occurs when the CC1 is turned on or is rebooted:

1. If turned OFF and then turned ON, the CC1 goes through a power-on self-test (POST). Here the computer essentially examines its electronic

components.

2. The computer looks at drive A for a DOS system disk. If one is not there, the CC1 will load DOS from its hard drive.

3. This process looks for two “hidden” system ﬁles: IO.SYS and MSDOS.SYS. If these ﬁles are not present, DOS displays the “Non-System

disk or disk error” message. (The CC1 also displays this error during the boot process if there is a ﬂoppy disk in the A drive that has no

system ﬁles).

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Pelco C1572M Manuel d'utilisateur Page 55