Juniper J-series Services Router J2350 Hardware Manual page 162

JUNOS Software with Enhanced Services Hardware Guide
Figure 76: Installing or Replacing DRAM Modules
Installing a DRAM Module
J2320, J2350, J4350 and J6350 Services Routers support 256-MB and 512-MB DRAM
modules. Use only DRAM modules purchased from Juniper Networks specifically for
your model.
NOTE: If you are installing a second DRAM module, do not install it in a slot adjacent
to the first module. For example, if the first DRAM module is installed in slot 1, install
the second module in slot 3 (see Figure 74 on page 136 and Figure 75 on page 137).
To install a DRAM module:
1.
2.
3.
4.
138
Replacing DRAM Modules
Take the following steps if you have not already done so:
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist
a.
and connect the strap to the ESD point on the chassis, or to an outside ESD
point if the router is disconnected from earth ground. For more information
about ESD, see the Getting Started Guide for your router.
Press and release the power button to power off the router. Wait for the
b.
LED to turn off.
POWER
Unplug the power cord or cable from the power source receptacle.
c.
Remove the screws from the sides and top of the chassis that secure the
d.
cover to the chassis.
Slide the cover off the chassis. (For J2320 and J2350 routers, see "Removing
e.
and Replacing the Chassis Cover on J2320 and J2350 Routers" on page 124.)
Remove the DRAM module from its electrostatic bag.
Press the plastic ejectors on both sides of the DRAM slot to open it (see
Figure 76 on page 138).
Grasp the DRAM module by the edges, being careful not to touch any electrical
components.