You install flex IOCs and port modules horizontally in
the front of the services gateway. You install flex IOCs directly
in the card cage. You install port modules into flex IOCs. Flex IOCs
and port modules are hot-insertable and hot-removable. When
you remove a flex IOC or port module, the services gateway continues
to function, although the flex IOC or port module being
removed no longer functions. Before replacing a flex IOC or port module,
review the information in Handling and Storing Cards. To replace a flex IOC or port module, use the following
procedures:
Have ready a replacement card or blank
panel and an antistatic mat for the flex IOC.
Attach an electrostatic discharge (ESD) grounding strap to your bare
wrist and connect the strap to one of the ESD points on the chassis. For more information about ESD, see Preventing
Electrostatic Discharge Damage.
Use one of the following
methods to take the flex IOC offline:
Press and hold the corresponding online button on the
craft interface. The green OK LED next to the button begins
to blink. Hold the button down until the LED goes off.
For more information about the command, see the JUNOS System Basics and Services
Command Reference.
If you have not already done so, remove
the port modules installed in the flex IOC as described
in Removing a Port Module.
Simultaneously turn both of the ejector handles
counterclockwise to unseat the flex IOC.
Grasp the handles and slide the flex IOC straight
out of the card cage halfway.
Place one hand around the front of the flex IOC and
the other hand under it to support it. Slide the flex IOC completely
out of the chassis, and place it on the antistatic mat or in the electrostatic
bag.
Caution:
The weight of the flex IOC is concentrated in the back
end. Be prepared to accept the full weight—up to 13.1 lb (5.9 kg)—as
you slide the flex IOC out of the chassis.
When the flex IOC is out of the chassis, do not hold
it by the ejector handles, bus bars, or edge connectors. They cannot
support its weight.
Do not stack flex IOCs on top of one another after removal.
Place each one individually in an electrostatic bag or on its own
antistatic mat on a flat, stable surface.
If you are not reinstalling a replacement card into the
empty slot within a short time, install a blank panel over the slot
to maintain proper airflow in the card cage.
Caution:
After removing an IOC from the chassis, wait at least
30 seconds before reinserting it, removing an IOC from a
different slot, or inserting an IOC into a different slot.
Figure 57: Removing a Flex IOC
Installing a Flex IOC
Note:
Your services gateway must be running JUNOS version 9.5R1 or
later in order to recognize flex IOCs and port modules.
Attach an electrostatic discharge (ESD) grounding strap to your bare
wrist and connect the strap to one of the ESD points on the chassis. For more information about ESD, see Preventing
Electrostatic Discharge Damage.
Place the flex IOC on an antistatic mat or remove
it from its electrostatic bag.
Identify the slot on the services gateway where you
will install the flex IOC.
If you have not already done so, remove the blank panel
from the slot where you are installing the flex IOC.
Orient the flex IOC so that the faceplate
faces you.
Lift the flex IOC into place and carefully
align the sides of the card with the guides inside the card cage.
Slide the flex IOC all the way into the
card cage until you feel resistance.
Figure 58: Installing a Flex IOC
Grasp both
ejector handles and rotate them clockwise simultaneously until the flex IOC is
fully seated.
Use one of the following methods to bring the flex IOC online:
Press and hold the corresponding online button on the
craft interface until the green OK LED next to the button
lights steadily, in about 5 seconds.
For more information about the command, see the JUNOS System Basics and Services
Command Reference.
Caution:
After the OK LED turns green, wait at least 30 seconds
before removing the IOC again, removing an IOC from
a different slot, or inserting an IOC in a different slot.
Removing a Port Module
Port modules are installed in flex IOCs
in the services gateway card cage. A port module weighs up to 3 lb (1.4 kg).
Be prepared to accept its full weight when you remove or install a port module.
Have ready a replacement port module or
blank panel and an antistatic mat for the port module. Also
have ready rubber safety caps for each port on the port module you
are removing that uses an optical interface.
Attach an electrostatic discharge (ESD) grounding strap to your bare
wrist and connect the strap to one of the ESD points on the chassis. For more information about ESD, see Preventing
Electrostatic Discharge Damage.
Label the cables connected
to each port on the port module so that you can later reconnect
the cables to the correct ports.
Use one of the following methods to take the port module offline:
Insert a pointed tool into the ONLINE pinhole
on the front panel of the port module to press the button behind
it. Hold the button down until the OK/FAIL LED goes off.
For more information about the command, see the JUNOS System Basics and Services
Command Reference.
Disconnect the cables from the port module.
If the port module uses fiber-optic cable, immediately cover
each transceiver and the end of each cable with a rubber safety cap.
Arrange the disconnected cables in the cable management system to
prevent the cables from developing stress points.
Warning:
Do not look directly into a fiber-optic transceiver or into
the ends of fiber-optic cables. Fiber-optic transceivers and fiber-optic
cable connected to a transceiver emit laser light that can damage
your eyes.
Caution:
Do not leave a fiber-optic transceiver uncovered except when
inserting or removing cable. The safety cap keeps the port clean and
prevents accidental exposure to laser light.
Caution:
Avoid bending fiber-optic cable beyond its minimum bend radius.
An arc smaller than a few inches in diameter can damage the cable
and cause problems that are difficult to diagnose.
Loosen the captive screws that retain the port module in
its slot in the flex IOC.
Grasp the captive screws and slide the port module straight
out of the flex IOC halfway.
Place one hand around the front of the port module and
the other hand under it to support it. Slide the port module completely
out of the flex IOC, and place it on the antistatic mat or
in the electrostatic bag.
Figure 59: Removing a Port Module
If you
are not reinstalling a port module into the empty slot within
a short time, install a blank panel over the slot to maintain proper
airflow in the card cage.
Caution:
After removing a port module from the chassis, wait at
least 30 seconds before reinserting it, removing a port module from
a different slot, or inserting a port module into a different
slot.
Attach an electrostatic discharge (ESD) grounding strap to your bare
wrist and connect the strap to one of the ESD points on the chassis. For more information about ESD, see Preventing
Electrostatic Discharge Damage.
If you have not already done so, install the flex IOC in
which you are installing the port module, as described in Installing a Flex IOC.
Place the port module on an antistatic mat
or remove it from its electrostatic bag.
Verify that each fiber-optic transceiver is covered
with a rubber safety cap. If it is not, cover the transceiver with
a safety cap.
If necessary, remove the blank panel covering the slot
in the flex IOC where you are installing the port module.
Orient the port module so that the faceplate
faces you.
Lift the port module into place and carefully
align the sides of the port module with the guides inside the flex IOC.
Slide the port module all the way into the flex IOC until
it is fully seated.
Tighten both captive screws to secure the port module in
the flex IOC.
Figure 60: Installing a Port Module
If the port module uses
fiber-optic interfaces, remove the rubber safety cap from each transceiver
and cable.
Warning:
Do not look directly into a fiber-optic transceiver or into
the ends of fiber-optic cables. Fiber-optic transceivers and fiber-optic
cable connected to a transceiver emit laser light that can damage
your eyes.
Insert the appropriate cables into the cable connector
ports on each port module. Secure the cables so that they are
not supporting their own weight. Place excess cable out of the way
in a neatly coiled loop, using the cable management system. Placing
fasteners on a loop helps to maintain its shape.
Caution:
Do not let fiber-optic cable hang free from the connector. Do
not allow fastened loops of cable to dangle, which stresses the cable
at the fastening point.
Caution:
Avoid bending fiber-optic cable beyond its minimum bend radius.
An arc smaller than a few inches in diameter can damage the cable
and cause problems that are difficult to diagnose.
Use one of the following methods to
take the port module online:
Insert a pointed tool into the ONLINE pinhole
on the front panel of the port module to press the button behind
it. Hold the button down until the OK/FAIL LED at the opposite
end of the front panel lights green steadily, in about 5 seconds.
For more information about the command, see the JUNOS System Basics and Services
Command Reference.
Caution:
After the OK/FAIL LED turns green, wait at least 30
seconds before removing the port module again, removing a port module from
a different slot, or inserting a port module in a different
slot.
You can also verify that the port module is functioning
correctly by issuing the show chassis fpc and show chassis fpc pic-status commands, as described
in Maintaining IOCs and SPCs and Maintaining IOC Cables.
