Installation guide

74 Acme Packet 6100 Hardware Installation and Maintenance Guide
8. Screw the NIU into the chassis with a #2 Phillips screwdriver. This creates
the final connection between the interface unit and the chassis.
Figure 6 - 104. Tightening NIU Thumbscrews
9. Replace all network and management cabling.
10. Set the System Power switch to ON to
power up the chassis. The system
boots up.
11. If the H/S LED lights in either a steady or flashing state, the NIU is not
se
ated properly. If the H/S LED is lit, follow these steps:
11a. Set the System Power switch to S
TBY to power down the chassis.
11b. Push the ejection levers inward to draw the physical interface card
toward
the system chassis and complete the connection. The latches
must engage to complete NIU insertion and lock to the chassis.
11c. Set the System Power switch to ON to apply power to the chassis. The
system boots up.
11d. When the NIU PWR LED lights and the H/S LED is extinguished,
pr
oceed with normal operations. Otherwise, contact customer
support for further assistance.
Replacing the SSM3 Module
The SSM3 module that provides TLS security functionality to the Acme Packet
6100 is installed on the NIU PCB as shown below. There is a single connector
located on the edge of the NIU into which the SSM3 module plugs; this