Installing Line and I/O Modules ! 47
Chapter 5: Installing Modules
Installing Line and I/O Modules
This section describes the procedures for installing line and I/O modules.
Installing a Line Module or an I/O Module
To install a module:
1. Ground yourself by using an antistatic wrist strap or other device.
2. Choose the slot where you want to insert the module.
3. With a Phillips screwdriver, loosen the screws that secure the blank faceplate
covering the empty chassis slot, if present, and remove the faceplate.
4. Remove the module from its antistatic bag.
5. Verify that the ejectors are in the open position, as shown in Figure 25.
6. Guide the module into the chassis by placing it between the guides of the
selected slot and pushing the module until it stops.
The module stops sliding when the ejectors make contact with the front of the
chassis.
NOTE: Install the I/O module before you install the corresponding line module;
otherwise, after the line module has tried to reboot, its status will be “inactive”
when you issue the show version command.
NOTE: Line modules are in the front of the system, and I/O modules are in the back
of the system.
Table 6: Module slot assignments
E-series Router Module Slot
ERX-1440 router ! Install modules other than the OC48 modules in slots 0–5 and
slots 8–13
! Install the OC48 line module in slots 2–3 and slots 4–5
! Install the corresponding I/O module only in the lower of the two
slots (either slot 2 or slot 4) that the line module spans
ERX-1410 router Install modules in slots 0–5 and slots 8–13
ERX-7xx model Install modules in slots 2–6
ERX-310 router Install modules in slots 1–2
CAUTION: If you meet strong resistance when attempting to seat the module using
the ejectors, remove it from the chassis and confirm that the slot is one designed
to hold the module. Also, be sure that you have aligned the top and bottom edges
in the correct matching tracks.
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