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Required Tools and Parts 51
Chapter 4
Servicing the Device
This chapter describes service and maintenance procedures for an SSG 20 device. It
contains the following sections:
“Required Tools and Parts” on this page
“Replacing a Mini-Physical Interface Module” on this page
“Upgrading Memory” on page 54
Required Tools and Parts
To replace a component on an SSG 20 device, you need the following tools and
parts:
Electrostatic bag or antistatic mat
Electrostatic discharge (ESD) grounding wrist strap
Phillips screwdriver, 1/8-inch
Replacing a Mini-Physical Interface Module
Both SSG 20 models have two slots in the front panel for wide area network mini
physical interface modules (WAN mini PIMs). Mini PIMs in an SSG 20 device can be
installed and replaced. The device must be powered off before you can remove or
install a mini PIM.
NOTE: For safety warnings and instructions, refer to the Juniper Networks Security
Products Safety Guide. The instructions in the guide warn you about situations that
could cause bodily injury. Before working on any equipment, you should be aware
of the hazards involved with electrical circuitry and be familiar with standard
practices for preventing accidents.
CAUTION: Make sure the power is off to the device when removing a mini PIM.
They are not hot-swappable.