Installation – RF Path Elements P/N 709C011801 Page 67
HCM (for Main HEU units) 1
In installations with more than one HEU, the HCM is installed in
one of the chassis which will be referred to as the “Main” HEU;
One HCM per system installation.
ACM (for Auxiliary HEU units) 1
Installed in the HEU in configurations consisting of more than
one HEU chassis
PSM 1 - 2
• For installations with one PSM module – install module in
left most slot
• For installations with two PSM modules – remove blank
panel from middle slot and insert additional PSM module
RIX 1 - 2
In installations with only one RIX, the unoccupied RIX slot must
be terminated with an ETM.
RIM 1 - 12 No need to terminate unoccupied RIM slot – leave blank panel
Table 5-2. Modules Required for HEU Installation
4. Referring to examples of modules shown in Figure 5-6 and Figure 5-7 secure the modules to the backplane by:
• Closing the ejectors (for relevant modules)
• Tightening the captive screws
Figure 5-6. HCM Ejectors and captive Screws Figure 5-7. RIM Ejectors and captive Screws
5.1.2.4 Grounding HEU Chassis
The grounding connection is performed via a two-hole, standard barrel grounding lug located on the HEU rear panel (see
Figure 5-8):
• For use with stranded copper wire conductors
• 10-14 AWG
• Holes - 1/4 inch
Figure 5-8. Grounding lug (HEU Chassis Rear)
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