User's Manual

Table Of Contents
Installation RF Path Elements CMA-331-AEN Page 78
Draft
5.1.1.10 Power Up
Note the following:
The PSM modules are installed in the headend unit chassis in one or both of the dedicated PSM slots (top left and middle)
Two power supplies can be installed in the same chassis in order to provide redundancy.
PSM-DC can be installed in the same chassis along with a PSM-AC module.
For installations with two PSM modules, both modules must be:
Connected to their respective power source (AC or DC)
Switched ON to begin system operation
Turned on at all times after installation
For PSM-AC modules
1. Connect power cable (100-240 VAC) supplied with module to the PSM-AC input connector and to the AC outlet and switch
on. See Figure 5-16
2. Verify that the Power Status LED on each PSM shows green. See Figure 5-16 for PSM-AC LED.
Figure 5-16. AC Power Supply Module LEDs