NTP-G9 Install the Alarm Expansion Panel (ANSI Only)
Figure 49: Replace Backplane Screws with Standoffs
Step 2
Attach the remaining two standoffs on either side of the backplane as shown in the following figure.
Step 3
Position the AEP board over the standoffs.
Cisco ONS 15454 Hardware Installation Guide
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Installing the ONS 15454 M12 (ANSI and ETSI) Shelf