9.
Screw the NIU into the chassis with a #2 Phillips screwdriver. This
creates the final connection between the interface unit and the chassis.
10.
Replace all network and management cabling.
11.
Set the System Power switch to ON to power up the chassis. The system boots
up.
12.
If the H/S LED lights in either a steady or flashing state, the NIU is not seated
properly. If the H/S LED is lit, follow these steps:
a.
Set the System Power switch to STBY to power down the chassis.
b.
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.
c.
Set the System Power switch to ON to apply power to the chassis. The system
boots up.
d.
When the NIU PWR LED lights and the H/S LED is extinguished, proceed 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 4600 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 connector supports one side
of the module while the other side of the SSM3 module rests on four standoff posts.
Pre-Installation Guidelines
Please read and follow these pre-installation guidelines prior to replacing the SSM3
module:
•
The SSM3 module can be installed only in the designated location.
•
Note the installation location of the SSM3 module on the NIU PCB.
•
Ground yourself and follow proper ESD grounding procedures.
•
Remove the SSM3 from the shipped packaging.
•
Install the SSM3 according to the procedure below.
•
This upgrade should be performed during low-traffic periods or during times of
scheduled maintenance.
•
Follow industry-standard procedures to ensure ESD protection.
•
When installing or removing an NIU card, move the card to an ESD-safe location.
Chapter 6
Replacing the SSM3 Module
6-13