Cisco RF Gateway 10 Hardware Installation Guide

Front View

Figure 3-1 shows the Cisco RFGW-10 UEQAM with the modules installed.

Figure 3-1 Cisco RFGW-10 UEQAM—Front View

Rear View

Figure 3-2 shows the rear of the Cisco RFGW-10 UEQAM with DC PEM installed.

Figure 3-2 Cisco RFGW-10 UEQAM—Rear View

The internal fans draw cooling air into the chassis and across internal components to maintain an acceptable operating temperature (see Figure 3-2). The fans are located at the rear of the chassis in the fan tray module and power supply modules. A two-hole grounding lug is located on the rear left bottom side of the chassis. Two DC PEMs are accessed from the rear of the router.

Note You have already unpacked your chassis and read all the site requirements for your new equipment. Proceed with the installation.

Warning Before you install, operate, or service the system, read the Regulatory Compliance and Safety Information for the Cisco RF Gateway 10 publication. This document provides important safety information you should know before working with the system. Statement 200

Warning This unit is intended for installation in restricted access areas. A restricted access area can be accessed only through the use of a special tool, lock and key, or other means of security. Statement 1017

Warning Only trained and qualified personnel should be allowed to install, replace, or service this equipment. Statement 1030

Warning To prevent personal injury or damage to the chassis, never attempt to lift or tilt the chassis using the handles on modules (such as power supplies, fans, or cards); these types of handles are not designed to support the weight of the unit. Statement 1032

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 Figure 3-3.

Step 1 Mark and measure the distance between the 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).

Note Measure the pairs of holes near the bottom, middle and top of the equipment rack to ensure that the rack posts are parallel.

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, which is 17.25 inches (43.8 cm) wide and fits between the mounting posts on the rack.

Figure 3-3 Verifying Equipment Rack Dimensions

Chassis Front Rack-Mount Brackets Installation

To install the front rack-mount brackets on a Cisco RFGW-10 UEQAM, complete the following steps:

Step 1 Locate the threaded holes on the front sides of the chassis that align with the holes in the rack-mount bracket. Ensure that you hold the front rack-mount bracket with the ear and holes facing outward and towards the front of the chassis (see Figure 3-6).

Step 2 Install all six M5 undercut flat-head screws (provided in the accessory kit) to secure each of the rack-mounting bracket to the chassis. There will be three screws installed on each end of the rack-mounting bracket.

Step 3 Repeat Step 1 through Step 2 on the other side of the chassis.

Step 4 Install the chassis in the rack. To install the Cisco RFGW-10 UEQAM in the rack, go to “Installing the Cisco RFGW-10 UEQAM in a Rack” section.

Figure 3-6 Attaching the Front Rack-Mount Brackets

Chassis Mid-Mounted Rack-Mount Bracket Installation

If you are rack-mounting the chassis using a mid-mounted configuration, then it provides for the chassis being recessed in the rack or installed in a two-post rack.

Note Chassis installation handles cannot be installed if the chassis is to be mid-mounted.

To install the rack-mount brackets for a mid-mounted configuration on a Cisco RFGW-10 UEQAM, complete the following steps:

Step 1 Locate the threaded holes on the middle sides of the chassis that align with the holes in the rack-mount bracket. Ensure that you hold the front rack-mount bracket with the ear and holes facing outward and towards the rear of the chassis (see Figure 3-7).

Step 2 Install all the six M5 undercut flat-head screws (provided in the accessory kit) to secure each of the rack-mounting bracket to the chassis. There will be three screws installed on each end of the rack-mounting bracket.

Step 3 Repeat Step 1 through Step 2 on the other side of the chassis.

Step 4 Install the chassis in the rack. To install the Cisco RFGW-10 UEQAM in a rack, go to “Installing the Cisco RFGW-10 UEQAM in a Rack” section.

Figure 3-7 Attaching the Rack-Mount Brackets for Mid-Mount Configuration to the Cisco RFGW-10 Chassis

Two-Post Rack Installation Mid-Mounted

The Cisco RFGW-10 chassis can be installed in a two-post 19-inch rack either as a front mount or a mid-mount (see Figure 3-12).

Step 1 On the chassis, ensure that all the screw fasteners on the installed components are securely tightened.

Step 2 Ensure that your path to the rack is unobstructed. If the rack is on wheels, ensure that the brakes are engaged or that the rack is otherwise stabilized. See the section on the types of racks you can use to install the chassis.

Step 3 (Optional) Install the chassis installation bracket into the rack to help support the chassis during installation (see Figure 3-11). If you use the bracket, this will help support the chassis while you secure it to the rack.

Figure 3-11 Chassis Installation Bracket

Step 4 With two people, lift the chassis (partially unloaded) into position between the rack posts and rest it on the chassis installation bracket.

Step 5 Position the chassis until the rack-mounting flanges flush against the mounting rails on the rack.

Step 6 Hold the chassis in position against the mounting rails and follow these steps:

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.

Tip In the next step, insert the top screw diagonally from the bottom screw that you just attached. This helps to keep the chassis in place.

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.

Figure 3-12 Installing the Cisco RFGW-10 in a Two-Post Equipment Rack

Step 7 Ensure that all the screws on each side of the rack-mount brackets are tightened to the equipment rack before the chassis installation bracket is removed from the rack.

This completes the procedure for installing the chassis in a two-post rack. Proceed to “Attaching a Chassis Ground Connection” section to continue the installation.

Connecting DC-Input Power to Cisco RFGW-10 UEQAM

This section describes how to connect the DC power supply to the Cisco RFGW-10 UEQAM.

Before you begin, read these important notices:

• The color coding of the DC-input power supply leads depends on the color coding of the DC power source at your site. Typically, green or green/yellow is used for ground (GND), black is used for –48V on negative (–) terminal and red is used for RTN on the positive (+) terminal. Ensure that the lead color coding you choose for the DC-input power supply matches the lead color coding used at the DC power source.
• For the DC input power cables, select the appropriate wire gauge based on the National Electrical Code (NEC) and the local codes for 60-amp service at nominal DC input voltage (–48 VDC). Two pairs of cable leads, source DC (–) and source DC return (+), are required for each power distribution unit (PDU). These cables are available from any commercial cable vendor. All input power cables for the chassis should have the same wire gauge and cable lengths should match within 10 percent of deviation.

Each DC input power cable is terminated at the PDU by a cable lug (included in the accessory kit). The cable lugs must be dual-hole, and have a 90 degree tongue (reference Panduit LCD4-14AF-L). They must be able to fit over M6 terminal studs at 0.625-inch (15.88-mm) centers.

Note The DC input power cables must be connected to the PDU terminal studs in the proper positive (+) and negative (–) polarity. In some cases, the DC cable leads are labeled, which is a relatively safe indication of the polarity. However, you must verify the polarity by measuring the voltage between the DC cable leads. When making the measurement, the positive (+) lead and the negative (–) lead must always match the (+) and (–) labels on the power distribution unit.

• An earth ground cable is required for each DC PDU. We recommend that you use at least 4-AWG multi-strand copper wire. This wire is not available from Cisco; it is available from any commercial cable vendor.

The ground wire cable lug (provided in the accessory kit) should be dual-hole (as shown in Figure 3-18), 90 degree tongue (reference Panduit LCD4-14AF-L), and able to fit over M6 terminal studs at 0.625 inch (1.588 cm) centers.

Figure 3-18 DC Input Power Cable Lug Example

Note To avoid hazardous conditions, all components in the area where DC input power is accessible must be properly insulated. Therefore, before installing the DC cable lugs, be sure to insulate the lugs according to the manufacturer's instructions.

Note Detailed instructions for removing and replacing the Cisco RFGW-10 UEQAM DC PEM are in “Installation and Removal of the DC PEM” section.

To connect the DC PEM, follow these steps:

Note Make sure that the facility input power is removed safely from the power cables before and during wiring of the input power cables.

Step 1 Make certain that the chassis grounding is connected before you begin installing the DC PEM.

Step 2 Ensure that the DC PEM is disconnected from the chassis midplane power connector and that the power supply breaker is in the off position.

Step 3 Locate the stud on the DC PEM for the GND connection, which must be connected first and follow these steps:

a. Using the provided grounding lug in the accessory kit, replace the washers and Kepnut screw in the following order:

– Washer

– Grounding cable lug

– Kepnut screw

b. Tighten the Kepnut screws on the power supply studs to the recommended torque of 18 in-lbs minimum to 22 in-lbs maximum.

Figure 3-19 Cisco RFGW-10 DC PEM

Note To meet the electromagnetic interference (EMI) requirements, the DC power supply should be removed from the chassis if the PEM has failed or the circuit breaker is off.

Step 4 Attach the other end of the cable to the site ground connection.

Step 5 Remove or rotate the plastic cover from the terminal block.

Step 6 You must wrap the positive and the negative lead cables with the sleeves. Take each lead wire and cover the area from the lug to the wire with heavy shrink sleeve.

Step 7 Insert the negative lead cable first. Replace the ground lug with cable in the following order:

a. Washer

b. Ground lug with negative wire

c. Kepnut screw

Step 8 Tighten the Kepnut screw to the recommended torque of 18 in-lbs minimum to 22 in-lbs maximum.

Step 9 Repeat Step 6 through Step 8 for the RTN lead cable.

Note Secure the wires coming in from the terminal block so that they cannot be disturbed by casual contact.

Step 10 Replace and rotate the terminal block plastic cover back into position until it is locked.

Figure 3-20 Cisco RFGW-10 DC PEM Terminal Block Plastic Cover

Step 11 Repeat steps 6 through 10 for the second DC input feed to the PEM.

Note Both DC inputs to the DC PEM must be connected and energized for the RFGW-10 system to operate properly.

Step 12 Fully install the DC PEM into the power supply bay and tighten the captive fasteners on the faceplate to the chassis.

Note Tighten the DC PEM captive fasteners to 12-16 in-lb torque.

Note Both DC inputs to the DC PEM must be connected and energized for the Cisco RFGW-10 UEQAM system to operate properly.

Powering On the Cisco RFGW-10 UEQAM

Step 1 Energize the facility DC power feeds to the power supply.

Step 2 Verify power supply operation by checking the DC PEM’s front panel LEDs. The –48 V1 and –48 V2 LEDs should illuminate green.

Step 3 Switch the circuit breaker switch to the On (|) position.

Step 4 Again verify the power supply operation by checking the power supply’s front panel LEDs. The –48 V1, –48 V2 and OUTPUT OK LEDs should illuminate green.

Step 5 Check the power supply and system status from the system console using the show power ? command. For more information on the commands, refer to the command reference publication for your chassis and software.

Connecting System Cables

Keep the following guidelines in mind when connecting external cables to the Cisco RFGW-10 UEQAM:

• To reduce the chance of interference, avoid crossing high-power lines with any interface cables.
• Verify all cabling limitations (particularly distance) before powering on the system.

Cabling the Power Shelf

Prerequisites

• It is recommended that you use the AC-input, and DC power cables that are provided in the Lineage power shelf accessory kit.

Required Tools and Equipment

• Lineage AC-DC power shelf
• DC power cables, provided in the Lineage accessory kit
• AC-input power cables, provided in the Lineage accessory kit
• 10 mm hex socket driver

Steps

Warning Before performing any of the following procedures, ensure that power is removed from the DC circuit. Statement 1003

To attach the cables to Lineage power shelf:

Step 1 Open the safety covers from above the DC terminal blocks by pushing the safety cover up and off the DC power terminal blocks on the power shelf.

Step 2 Loosen and remove the M6 nuts on the DC terminal blocks.

Step 3 Connect the DC power cables by attaching the lugged ends of cables to the DC power terminal blocks on the shelf. Secure the cables with the M6 nuts using a 10 mm hex socket driver with an installation torque of 45-in lbs. (See Figure 3-21.)

Figure 3-21 Y-Shaped DC Power Cable with Lugged Ends

Step 4 Place the safety covers on the DC terminal blocks.

Step 5 Proceed to connecting the Lineage power shelf to the Cisco RFGW-10 chassis.

• Single Lineage power shelf configuration—If you are using this configuration, see “Connecting a Single Power Shelf” section.
• Dual Lineage power shelves configuration—If you are using this configuration, see “Connecting Dual Power Shelves” section.

Step 6 Connect the de-energized AC power cables to the power shelf.

Step 7 Connect the AC power cables to the facility wall socket to energize the power shelf.

Connecting a Single Power Shelf

Required Tools and Equipment

• DC PEM module (RFGW-10-PWR-DC1=)
• One Lineage AC-DC power shelf
• Four Y power cables (Amphenol), provided in the Lineage accessory kit
• Flat-head screwdriver
• 10 mm hex socket driver

Note It is recommend that you use the Y-Shaped DC power cables provided in the Lineage accessory kit. If you are using a 4 AWG cable, use a high-flex high strand count power cable for optimal routing of the cables under the front cover of the Cisco RFGW-10 chassis. The 2 AWG wire is not supported on the RFGW-10-PWR-DC1= DC PEM module.

Steps

To connect a single power shelf to the DC PEM modules on the Cisco RFGW-10:

Step 1 Connect the Y-Shaped DC power cables to the Lineage power shelf, see the “Cabling the Power Shelf” section.

Step 2 Connect the DC power cables to the DC-input terminals on the Cisco RFGW-10 UEQAM. For information on connecting the DC power cables to the Cisco RFGW-10, see the “Connecting DC-Input Power to Cisco RFGW-10 UEQAM” section.

Step 3 Connect the AC power cables to a standard wall socket (facility power source) to provide power to the Cisco RFGW-10. See the “Powering On the Cisco RFGW-10 UEQAM” section.

Figure 3-22 shows the Lineage power shelf connected to the DC PEM modules.

Figure 3-22 Lineage Power Shelf Connected to DC PEM Modules - Configuration 1

Connecting Dual Power Shelves

Required Tools and Equipment

• DC PEM module (RFGW-10-PWR-DC1=)
• Two Lineage AC-DC power shelves
• Eight straight DC power cables (Elmech), provided in the Lineage accessory kit
• Flat-screw driver
• 10 mm hex socket driver

Note It is recommend that you use the straight DC power cables provided in the Lineage accessory kit. If you are using a 4 AWG cable, use a high-flex high strand count power cable for optimal routing of the cables under the front cover of the Cisco RFGW-10. The 2 AWG wire is not supported on the RFGW-10-PWR-DC1= DC PEM module.

Steps

Step 1 Connect the cables to the two Lineage power shelves, see “Cabling the Power Shelf” section.

Step 2 Connect the DC “straight” power cables to the DC-input terminals on the on the Cisco RFGW-10 UEQAM. For information on connecting the cables, see “Cabling the Power Shelf” section.

Step 3 Connect the AC power cables to a standard wall socket (facility power source) to provide power to the Cisco RFGW-10 UEQAM. See “Powering On the Cisco RFGW-10 UEQAM” section.

Figure 3-23 shows two Lineage power shelves connected to the DC PEM modules.

Figure 3-23 Lineage Power Shelf Connected to DC PEM Modules - Configuration 2

Disconnecting Cables from the Power Shelf

Steps

To disconnect cables from the Lineage power shelf and the Cisco RFGW-10:

Step 1 Power off the power shelf by disconnecting the power supply at the facility. Wait a few minutes before disconnecting the power cables so that they discharge.

Step 2 Disconnect the AC cables from the standard wall socket. Disconnect the AC power cables from each of the AC-input power supply sources on the power shelf.

Step 3 Disconnect the DC power cables on each side of the DC power sources, on the power shelf.

Step 4 Disconnect the other ends of the DC power cable from the DC power terminal blocks of the Cisco RFGW-10.