5. Position the SSM so that its front side faces you, and slide the SSM into the slot until you
feel resistant, as shown below.
6. Tighten the screws on the SSM with a cross screwdriver.
7. To install more SSMs, repeat Step 2 to 6.
Notes: When the modules are of half width, you can take the above steps to install
them. A tray is installed in each expansion slot at the factory, and the half width
modules can be installed on the tray directly. If you need to install the full width
modules (such as SSM-200, QSM-200, IOM-2Q8SFP+ -200, IOM-2Q8SFP+ and
IOM-8SFP+), loose the screws at each end of the tray, remove the tray, and then
install the modules by taking the above steps.
Installing a QSM
QSM is specially used to process QoS services. QSM is located in Slot1 to Slot10.
The following section takes QSM-20 as an example to describe the installation of QSM.
To install a QSM, take the following steps:
1. Wear an electrostatic discharge (ESD) strap around your bare wrist and connect the strap to
an ESD point on the chassis. See ESD Prevention.
2. Take QSM out of its antistatic bag.
105
Chapter 3 Installation
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