Cisco Remote PHY Shelf 7200 Instruction Manual

Installing the Cisco Remote PHY Shelf 7200
•Installing the Chassis, on page 1
•Installing the Fan Tray, on page 18
•Installing the Power Shelf, on page 23
•Installing the Cisco Remote PHY Shelf 7200 PIC, on page 30
•Installing the RPDs, on page 32
Installing the Chassis
The Cisco Remote PHY Shelf 7200 can be either mounted on the rack at the front or in the middle. Also, the
router can be either mounted on a standard 19-inch wide four-post equipment rack unit or a two-post rack
unit.
The Cisco Remote PHY Shelf 7200 fully configured system can weigh up to 271 lbs, components must be
removed from the chassis to make the chassis lighter for rack installation. Remove all front power modules
and front RPD cards for rack mounting to reduce the weight. The PIC cards and Fan Tray can remain in the
system during rack mounting. For instructions on how to remove the components, see the monitoring sections.
Make sure that you place the cards and modules in an anti-static bag until you install the chassis in the rack.
Proceed with the installation if you have already unpacked your chassis and read all the site requirements for
your new equipment.
Required Tools and Equipment
• ESD-preventive wrist strap
• #2 Phillips torque screwdriver
• Flat-head screwdriver
Note
Verifying Rack Dimensions
Before you install the chassis, measure the space between the vertical mounting flanges (rails) on your
equipment rack to verify that the rack conforms to the measurements shown in the following figure.
Installing the Cisco Remote PHY Shelf 7200
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Figure 1: Verifying Equipment Rack Dimensions
Step 1 Mark and measure the distance between two holes on the left and right mounting rails.
The distance should measure 18.31 inches ± 0.06 inches (46.5 cm ± 0.15 cm).
Measure for pairs of holes near the bottom, middle, and top of the equipment rack to ensure that the rack posts
are parallel.
Note
Step 2 Measure the space between the inner edges of the left front and right front mounting flanges on the equipment rack.
The space must be at least 17.7 inches (45 cm) to accommodate the chassis.
Installing the Chassis Installation Brackets
Each chassis is shipped with two chassis installation brackets in the accessory kit. These brackets aid in
installing a chassis into a 19-inch rack. These brackets are used as a support base to vertically position and
set the chassis before installing the rack mount screws.
Step 1 Determine the position in the rack where you want to mount the chassis.
If you are mounting more than one chassis in the rack, start from the bottom or the center of the rack. Hold the chassis
installation bracket, where the bottom of the chassis will be positioned vertically in the rack.
Step 2 Secure the chassis installation bracket to the front rails with rack-mount screws.
If a second internal rack rail is present which is not more than 23 inches from the front rail, position the second installation
bracket to create a rear support for the chassis during installation.
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Installing the Cisco Remote PHY Shelf 7200
Installing the Chassis Installation Brackets

Figure 2: Chassis Installation Bracket
Chassis Installation Bracket1
After you install the chassis and secure it to the rack, remove the chassis installation brackets from the rack.
The chassis does not need these brackets for supporting the weight, after all rack mount screws are secured.
Note
Attaching the Chassis Rack-Mount Brackets
The chassis is shipped with the rack mount brackets pre-installed in the front position. The rack mount brackets
can be removed and reversed in the mid-mounting location on the chassis.
After you install the chassis in the rack, the rear RF cable-management brackets can be installed on the chassis.
Note
Attach the rack-mounting brackets either in the front or the middle of the chassis.
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Installing the Cisco Remote PHY Shelf 7200
Attaching the Chassis Rack-Mount Brackets

• Front Rack-Mounting the system: The chassis is shipped with the rack-mount brackets installed in the
front. Proceed to Installing the Cisco Remote PHY Shelf 7200 in a Rack, on page 5.
• Mid Rack-Mounting the system: Install the mounting bracket in the middle of the chassis, so that you
can recess the chassis in the rack or install the chassis in a two-post rack unit.
To install the rack-mount brackets in the middle of the chassis, complete the following steps:
Before you begin
Required Tools and Equipment
• #2 Phillips torque screwdriver
Step 1 Remove the rack-mount brackets installed in the front of the chassis by unscrewing the M5 undercut flat-head screws
using a #2 Phillips screwdriver.
Step 2 Locate the threaded holes at the middle on the side of the chassis that align with the holes in the rack-mount bracket.
Figure 3: Installing Rack-Mount Brackets in the front position
Step 3 Install the 8 M5 undercut flat-head screws to secure each rack-mounting bracket to the chassis.
The bottom two holes on the rack-mount bracket in the power tray area are unused.
Note
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Installing the Cisco Remote PHY Shelf 7200
Attaching the Chassis Rack-Mount Brackets

Figure 4: Installing rack-mount brackets mid mount
Step 4 Repeat the steps 1, 2, and 3 on the other side of the chassis.
Installing the Cisco Remote PHY Shelf 7200 in a Rack
You can install the chassis in either a four-post rack unit or a two-post rack unit.
Before you begin
1. Verify rack dimensions.
2. Install chassis installation brackets.
3. Attach the chassis rack-mount brackets.
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Installing the Cisco Remote PHY Shelf 7200
Installing the Cisco Remote PHY Shelf 7200 in a Rack

To prevent physical injury when mounting or servicing this unit in a rack, you must take special precautions
to ensure that the system remains stable. The following guidelines are provided to ensure your safety:
• If you have to mount only one unit in the rack, mount it at the bottom of the rack.
• When mounting this unit in a partially filled rack, load the rack from the bottom to the top with the
heaviest component at the bottom of the rack.
• If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing the
unit in the rack.
Warning
Procedure
PurposeCommand or Action
Use at least four rack-mount screws on each side to fasten
the two rack-mount brackets to the rack posts because the
rack-mount brackets support the weight of the entire chassis.
Rack mount the chassis by securing the rack-mount brackets
to two posts or mounting strips in the rack.
Step 1
Installing the Cisco Remote PHY Shelf 7200 in a Four-Post Rack
Step 1 Ensure that all screw-fasteners on the installed components are securely tightened on the chassis. It is recommended to
remove the front Power Supplies and RPD’s to lighten the chassis weight prior to installation.
Step 2 Ensure that your path to the rack is unobstructed.
If the rack is on wheels, ensure that the brakes are engaged or the rack is stabilized.
Step 3 With two or more people, lift the chassis (partially unloaded) into position between the rack posts and rest it on the chassis
installation bracket.
In addition to the bottom and edges of the chassis, the chassis can be lifted using the two side handles on the chassis and
the two large fan tray handles on the rear of the chassis.
Ensure that the rear Fan Tray handles are secured to the chassis with their 4 captive screws on the handles.
Note
Step 4 After the rear weight of the chassis is resting on the installation bracket, one person can hold it in place when the second
person moves to the rear of the rack to slide it into place and hold the weight while the rack mount screws are tightened.
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Installing the Cisco Remote PHY Shelf 7200
Installing the Cisco Remote PHY Shelf 7200 in a Four-Post Rack

Step 5 Position the chassis until the rack-mounting flanges are flush against the mounting rails on the rack.
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Installing the Cisco Remote PHY Shelf 7200
Installing the Cisco Remote PHY Shelf 7200 in a Four-Post Rack

Step 6 Hold the chassis in position against the mounting rails and do the following:
a) Insert a bottom screw into the rack mount ear on each side and use a hand-held screwdriver to tighten the screw to
the rack rail.
b) Insert a top screw into each side rack mount bracket and tighten the screw to the rack rail.
Insert a minimum of four screws per bracket on both sides of the chassis.
Install a minimum of 4 screws through each sides rack mount into the rack rails for proper support.
Note
What to do next
• If necessary, remove the chassis installation brackets after ensuring that all screws are tightly secured to
the rack unit.
•Attaching the Cable-Management Bracket, on page 11.
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Installing the Cisco Remote PHY Shelf 7200
Installing the Cisco Remote PHY Shelf 7200 in a Four-Post Rack

Installing the Cisco Remote PHY Shelf 7200 in a Two-Post Rack
You can install the Cisco Remote PHY Shelf 7200 in a two-post 19-inch (48.26 cm) rack either as a front
mount or a mid-mount if the spacing between rails is at least 17.70 inches (44.96cm) wide. If the rack rail
opening is narrower than this you can only use the mid mount option for mounting the chassis into the two
post rack.
The procedure for front mounting a chassis in a two-post rack is similar to the procedure for front mounting
in a four-post rack, except that you cannot use the second chassis installation bracket.
If you are using a two-post rack, secure the rack to the floor surface to prevent tipping and physical injury,
and avoid damage to the component.
Caution
To mid-mount the chassis, follow these steps:
Step 1 Ensure that all screw-fasteners on the installed components are securely tightened on the chassis. It is recommended to
remove the front Power Supplies and RPD’s to lighten the chassis weight prior to installation.
Step 2 Ensure that your path to the rack is unobstructed.
If the rack is on wheels, ensure that the brakes are engaged or the rack is otherwise stabilized.
Step 3 Install the chassis installation bracket into the rack to support the chassis during installation when you secure it to the
rack.
Step 4 With two or more people, lift the chassis (partially unloaded) into position between the rack posts and rest it on the chassis
installation bracket.
The chassis can be lifted using the two large side handles and the rear Fan Tray Handles.
Ensure the rear Fan Tray handles are secured to the chassis with their 4 captive screws on the handles.
Note
Step 5 After the rear weight of the chassis is resting on the installation bracket, one person can hold it in place while the second
person moves to the rear of the rack to help slide it into place and hold the weight while the rack mount screws are
tightened.
Step 6 Position the chassis until the rack-mounting flanges are flush against the mounting rails on the rack.
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Installing the Cisco Remote PHY Shelf 7200
Installing the Cisco Remote PHY Shelf 7200 in a Two-Post Rack

Step 7 Hold the chassis in position against the mounting rails and do the following:
a) Insert a bottom screw into the rack mount ear on each side and use a hand-held screwdriver to tighten the screw to
the rack rail.
b) Insert a top screw into each side rack mount bracket and tighten the screw to the rack rail.
c) Insert a minimum of four screws per bracket on both sides of the chassis.
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Installing the Cisco Remote PHY Shelf 7200
Installing the Cisco Remote PHY Shelf 7200 in a Two-Post Rack

Step 8 Ensure that all screws on each of the side rack-mount brackets are tightened to the equipment rack before the chassis
installation bracket is removed from the rack.
What to do next
Attaching the Cable-Management Bracket, on page 11.
Attaching the Cable-Management Bracket
The rear RF cable management system is provided in the accessory kit. There is a right hand side and a left
hand side for the chassis.
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Installing the Cisco Remote PHY Shelf 7200
Attaching the Cable-Management Bracket

The chassis will not fit through a 19-inch rack rail opening with the cable management system pre-installed.
Note
Complete the following steps to install the Cable-Management Bracket:
1. Install the chassis into the rack.
2. Align the RF left side RF cable management to a set of holes on the side of the chassis. There are three
mounting positions on the chassis depending on the number of cables that are required to be supported.
3. Secure the left side RF cable management using the thumb screws on the bracket.
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Installing the Cisco Remote PHY Shelf 7200
Attaching the Cable-Management Bracket

4. Repeat steps 1-3 for the right side RF management bracket.
The Cisco Remote PHY Shelf 7200 has 216 ports, and the coax cable routing was designed for half the cables
that are routed to either side of the system.
Slot12/DS02Slot12/DS51
Slot 04Slot 123
Slot0/DS56Slot0/DS05
After routing the RF cables through the cable management, latches can be closed for retention of the cables.
See the following image.
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Installing the Cisco Remote PHY Shelf 7200
Attaching the Cable-Management Bracket

Cables from PIC12Cables from PIC01
Cables from PIC34Cables from PIC23
Cables from PIC56Cables from PIC45
Attaching a Chassis Ground Connection
Before you begin
This equipment must be grounded. Never defeat the ground conductor or operate the equipment in the absence
of a suitably installed ground conductor. Contact the appropriate electrical inspection authority or an electrician
if you are uncertain that suitable grounding is available. Statement 1024
Warning
Before you connect the power or turn on the power to the chassis, you must provide an adequate chassis
ground (earth) connection for the chassis. A chassis ground connector is available at the rear, left side of each
Cisco Remote PHY Shelf 7200 chassis.
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Installing the Cisco Remote PHY Shelf 7200
Attaching a Chassis Ground Connection

The grounding wire is always the first to be installed or connected and the last to be removed or disconnected.
Caution
Required Tools and Equipment
• Phillips Screwdriver
• ¼-20 Phillips pan head with a square cone lock washer (available in the accessory kit)
• 2 hole 4-AWG dual crimp compression lug (available in the accessory kit)
• 4 or 2 AWG grounding wire—The ground wire and lug must be always as large as the input gauge. For
example, to use 2 AWG for the DC inputs, the ground lug and wire must be 2 AWG or bigger.
• Crimping tool for the ground lug
Step 1 Use the wire stripper to strip one end of the AWG #4 wire approximately 1.12 inches (28.4 mm).
Step 2 Insert the AWG #4 wire into the wire receptacle on the grounding lug.
Step 3 Use the crimping tool to carefully crimp the wire receptacle around the wire; this step is required to ensure a proper
mechanical connection.
Step 4 Locate the chassis ground area on the rear lower left-side panel of your chassis.
Step 5 Insert the two ¼-20 screws (available in the accessory kit) through the holes in the grounding lug, and tighten until the
grounding lug is held firmly to the chassis.
The captive nuts are located on the rear lower left side of the chassis for attaching a two-hole ground lug. In
addition, three nuts are available for attaching, so that you can mount the lug horizontally or vertically depending
on the wire routing preferences.
Note
Step 6 Connect the opposite end of the grounding wire to the appropriate grounding point at your site to ensure an adequate
chassis ground.
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Installing the Cisco Remote PHY Shelf 7200
Attaching a Chassis Ground Connection

Installing the Optical Cable Management Kit (Optional)
To install the optional Optical Cable Management (OCMG) Kit, complete the following steps:
1. Remove the top two screws from the power shelf flange ears. Keep the screws safe.
T15 Drive Screws1
2. Align the Optical Cable Management Kit to the chassis.
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Installing the Cisco Remote PHY Shelf 7200
Installing the Optical Cable Management Kit (Optional)

3. Install the right and left cable management support brackets onto the power shelf flanges as shown in the
following image. Secure the bracket with four T15 Torx screws. Tighten to 6-8 Lb-In torque.
T15 Drive Screws1
4. Install the shoulder screws through the cable management tray slots and into the chassis side bezel threaded
holes. Secure the shoulder screw using a T10 Torx screwdriver, tighten to 5-6 Lb-In torque.
Figure 5:
Shoulder Screw1
5. Orient the cable tray and secure the two captive screws to the support brackets by hand.
You can feed the optical cables into the tray through the tray retaining fingers as shown in the following figure.
Cables can be routed left or right through the tray.
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Installing the Cisco Remote PHY Shelf 7200
Installing the Optical Cable Management Kit (Optional)

Installing the Fan Tray
Before you begin
• Attach an ESD-preventive wrist strap to your wrist and connect the other end to the grounding lug
connected to the chassis.
•Minimum Keep Out Areas for Proper Cooling
Air flows from the front to the rear of the chassis. Air enters through the chassis RDP front panels and
power supply modules. Air is expelled from the rear of the chassis.
The keep-out areas are defined to ensure adequate space around the Cisco Remote PHY Shelf 7200
chassis. The space is necessary to ensure adequate air intake and exhaust. The figure shows the keep-out
areas for the Cisco Remote PHY Shelf 7200 chassis.
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Installing the Cisco Remote PHY Shelf 7200
Installing the Fan Tray

Figure 6: Allow keep-Out Areas for the Cisco Remote PHY Shelf 7200 Chassis
The Cisco Remote PHY Shelf 7200 Fan Tray is a Field Replaceable Unit without Fans.
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Installing the Cisco Remote PHY Shelf 7200
Installing the Fan Tray

Restrictions
• Do not boot the chassis unless all the Fan Modules are installed.
• Only one fan module should be removed at a time for servicing or replacement.
• Do not operate the chassis without the Fan Tray installed.
Step 1 Align the yellow Fan Tray sheetmetal tab to the chassis fan tray guides.
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Installing the Cisco Remote PHY Shelf 7200
Installing the Fan Tray