Guest

Cisco ONS 15454 Series Multiservice Provisioning Platforms

Electrostatic Discharge and Grounding Guide for Cisco CPT and Cisco ONS Platforms

  • Viewing Options

  • PDF (8.4 MB)
  • Feedback
Electrostatic Discharge and Grounding Guide for Cisco CPT and Cisco ONS Platforms

Table Of Contents

Electrostatic Discharge and Grounding Guide for Cisco CPT and Cisco ONS Platforms

Prerequisites

Preparing Your Location

Preparing the Rack Room

Preparing Yourself

Locating and Grounding the Chassis

Locating and Grounding the CPT 50 Shelf

Locating and Grounding the Cisco ONS 15454 M2 Chassis

Locating and Grounding the Cisco ONS 15454 M6 Chassis

Locating and Grounding the Cisco ONS 15454 ANSI Chassis

Locating and Grounding the Cisco ONS 15454 ETSI Chassis

Locating and Grounding the Cisco ONS 15310-MA ANSI and ONS 15310-MA ETSI Chassis

Locating and Grounding the Cisco ONS 15310-CL ANSI Chassis

Locating and Grounding the Cisco ONS 15600 ANSI and ONS 15600 ETSI  Bay Assembly

Installing the Line Cards

Preparing the Work Surface for Installing Line Cards

Transporting Line Cards

Handling Line Cards

Removing and Installing Line Cards


Electrostatic Discharge and Grounding Guide for Cisco CPT and Cisco ONS Platforms


Cisco CPT, Cisco ONS M2, ONS M6, ONS 15454, ONS 15310-MA, ONS15310-CL, and ONS 15600

May 2011, 78-18960-03

This document uses illustrations to explain the workflow that we recommend for grounding the Cisco CPT, Cisco ONS 15454 M2, ONS 15454 M6, ONS 15454 ANSI, ONS 15454 ETSI, ONS 15310-MA ANSI, ONS 15310-MA ETSI, ONS 15310-CL ANSI, ONS 15600 ANSI, and ONS 15600 ETSI chassis. It also explains best practices to be followed to prevent electrostatic discharge (ESD) damage, which can occur when the equipment is improperly handled.


Note The instructions in this document also applies to the Cisco ONS DWDM platform.


The following sections are included in this document:

Prerequisites

Locating and Grounding the Chassis

Installing the Line Cards

Prerequisites

Before locating and grounding any chassis, you must complete the following prerequisites:

Preparing Your Location

Preparing the Rack Room

Preparing Yourself

Preparing Your Location

This section illustrates how the building that houses the chassis must be properly grounded to the earth ground. (See Figure 1.)


Warning This product requires short-circuit (overcurrent) protection to be provided as part of the building installation. Install only in accordance with national and local wiring regulations. Statement 1045.



Warning A readily accessible two-poled disconnect device must be incorporated in the fixed wiring. Statement 1022.


Figure 1 Building with Rack Room Connected to Earth Ground

Preparing the Rack Room

This section explains how the rack enclosures must be properly connected to the building earth ground. It also illustrates how to keep the chassis in a sealed antistatic bag until you are ready to install it. (See Figure 2.)


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


Figure 2 Rack Room Connected to Earth Ground

Preparing Yourself

This section illustrates how to prepare yourself before removing the chassis from the sealed antistatic bag. Figure 3 illustrates how to cuff the ESD strap around the wrist and the ground cord that connects the cuff to the ground. ESD wrist straps are the primary means of controlling static charge on personnel.

Figure 3 Wearing the ESD Strap

Figure 4 illustrates how you must be properly grounded before handling the chassis.

Figure 4 Handling the Chassis

Locating and Grounding the Chassis

This section explains how to locate and ground the following Cisco ONS chassis:

Locating and Grounding the CPT 50 Shelf

Locating and Grounding the Cisco ONS 15454 M2 Chassis

Locating and Grounding the Cisco ONS 15454 M6 Chassis

Locating and Grounding the Cisco ONS 15454 ANSI Chassis

Locating and Grounding the Cisco ONS 15454 ETSI Chassis

Locating and Grounding the Cisco ONS 15310-MA ANSI and ONS 15310-MA ETSI Chassis

Locating and Grounding the Cisco ONS 15310-CL ANSI Chassis

Locating and Grounding the Cisco ONS 15600 ANSI and ONS 15600 ETSI  Bay Assembly


Warning This equipment is intended to be grounded. Ensure that the host is connected to earth ground during normal use. Statement 39.



Warning Use copper conductors only. Statement 1025.



Warning When installing or replacing the unit, the ground connection must always be made first and disconnected last. Statement 1046.



Note A #6 AWG cable or a 1 inch wide flat copper braid (with minimum total strands count of 1050 x 36 AWG or 260 x 36 AWG) is mandatory to install the Cisco ONS 15454 M2, ONS 15454 M6, ONS 15454 ANSI, ONS 15454 ETSI, ONS 15310-MA ANSI, ONS 15310-MA ETSI, ONS 15310-CL ANSI, ONS 15600 ANSI, and ONS 15600  ETSI chassis.


Locating and Grounding the CPT 50 Shelf

Before locating and grounding the CPT 50 shelf, you must complete the prerequisites mentioned in "Prerequisites" section. To locate the ground point and attach a ground cable to the CPT 50 shelf:


Step 1 Verify that the office ground cable is connected to the top of the bay and the office ground, according to local site practice. (See Figure 1 and Figure 2.)


Note The CPT 50 installations are suitable for Network Telecommunication facilities and locations where NEC applies.



Note Additional ground cables may be added depending on local site practice. The CPT 50 shelf is designated only for a Common Bonding Network (CBN), according to the GR-1089-CORE Issue 5 (sec 9.3) definitions.



Note The DC power battery return (BR) terminal or positive terminal must be grounded at the source end (power feed or DC mains power end). The DC power BR input terminal is not connected to the equipment frame (chassis), so it is configured as DC-1 according to the GR-1089-CORE, Issue 5 (sec 9.8.3) definitions.


Step 2 Remove any paint and other nonconductive coatings from the surfaces between the shelf ground and bay frame ground point. Clean the mating surfaces and apply appropriate antioxidant compound to the bare conductors.

Step 3 Attach one end of the shelf ground cable (#8 AWG cable) to the ground point (rear or lateral) on the chassis using the specified dual-hole lug connector. (See diagrams 1 and 2 in Figure 5.)

Step 4 Tighten the lug using the M4 pan-head screw to torque value of 11.5 in-lbs (1.3 N-m).


Note Ground points are present on the rear and lateral sides of the CPT 50 shelf (see diagram 1 in Figure 5). You can connect the grounding cable to either the rear or the lateral side. Diagrams 2 and 3 in Figure 5 show the ground connection to the rear side of the CPT 50 shelf.


Step 5 Attach the other end of the shelf ground cable to the bay frame using a dual-hole lug connector according to the equipment bay frame specifications. (See diagram 3 in Figure 5.)

Figure 5 Grounding CPT-50 Shelf

Locating and Grounding the Cisco ONS 15454 M2 Chassis

Before locating and grounding the Cisco ONS 15454 M2 chassis, you must complete the prerequisites mentioned in "Prerequisites" section. To locate the ground point and attach a ground cable to the Cisco ONS 15454 M2 chassis:


Step 1 Verify that the office ground cable is connected to the top of the bay and the office ground, according to local site practice. (See Figure 1 and Figure 2.)


Note Additional ground cables may be added depending on local site practice. The ONS 15454 M2 chassis is designated only for a Common Bonding Network (CBN), according to the GR-1089-CORE Issue 4 (sec 9.3) definitions.



Note The DC power battery return (BR) terminal or positive terminal must be grounded at the source end (power feed or DC mains power end). The DC power BR input terminal is not connected to the equipment frame (chassis), so it is configured as DC-I according to the GR-1089-CORE, Issue 4 (sec 9.8.3) definitions.


Step 2 Remove any paint and other nonconductive coatings from the surfaces between the chassis ground and bay frame ground point. Clean the mating surfaces and apply appropriate antioxidant compound to the bare conductors.

Step 3 Attach one end of the shelf ground cable (#6 AWG cable or 1 inch copper braid) to the ground point on the chassis using the specified dual-hole lug connector. (See diagrams 1 and 2 in Figure 6.)

Step 4 Attach the other end of the shelf ground cable to the bay frame using a dual-hole lug connector according to the equipment bay frame specifications. (See diagram 3 in Figure 6.)

Figure 6 Grounding ONS 15454 M2 Chassis

Stop. You have completed grounding the chassis.


Locating and Grounding the Cisco ONS 15454 M6 Chassis

Before locating and grounding the Cisco ONS 15454 M6 chassis, you must complete the prerequisites mentioned in "Prerequisites" section. To locate the ground point and attach a ground cable to the Cisco ONS 15454 M6 chassis:


Step 1 Verify that the office ground cable is connected to the top of the bay and the office ground, according to local site practice. (See Figure 1 and Figure 2.)


Note Additional ground cables may be added depending on local site practice. The ONS 15454 M6 chassis is designated only for a Common Bonding Network (CBN), according to the GR-1089-CORE Issue 4 (sec 9.3) definitions.



Note The DC power battery return (BR) terminal or positive terminal must be grounded at the source end (power feed or DC mains power end). The DC power BR input terminal is not connected to the equipment frame (chassis), so it is configured as DC-I according to the GR-1089-CORE, Issue 4 (sec 9.8.3) definitions.


Step 2 Remove any paint and other nonconductive coatings from the surfaces between the chassis ground and bay frame ground point. Clean the mating surfaces and apply appropriate antioxidant compound to the bare conductors.

Step 3 Attach one end of the shelf ground cable to the ground point on the chassis using the specified dual-hole lug connector. (See diagrams 1 and 2 in Figure 7.)

Step 4 Attach the other end of the shelf ground cable to the bay frame using a dual-hole lug connector according to equipment bay frame specifications. (See diagram 3 in Figure 7.)

Figure 7 Grounding ONS 15454 M6 Chassis

Stop. You have completed grounding the chassis.


Locating and Grounding the Cisco ONS 15454 ANSI Chassis

Before locating and grounding the Cisco ONS 15454 ANSI chassis, you must complete the prerequisites mentioned in "Prerequisites" section. To locate the ground point and attach a ground cable to the Cisco ONS 15454  ANSI  chassis:


Step 1 Verify that the office ground cable is connected to the top of the bay and the office ground, according to local site practice. (See Figure 1 and Figure 2.)


Note Additional ground cables may be added depending on local site practice. The ONS 15454 ANSI chassis is designated only for a Common Bonding Network (CBN), according to the GR-1089-CORE Issue 4 (sec 9.3) definitions.



Note The DC power battery return (BR) terminal or positive terminal must be grounded at the source end (power feed or DC mains power end). The DC power BR input terminal is not connected to the equipment frame (chassis), so it is configured as DC-I according to the GR-1089-CORE, Issue 4 (sec 9.8.3) definitions.


Step 2 Remove any paint and other nonconductive coatings from the surfaces between the chassis ground and bay frame ground point. Clean the mating surfaces and apply appropriate antioxidant compound to the bare conductors.

Step 3 Attach one end of the shelf ground cable to the ground point on the chassis using the specified dual-hole lug connector. (See diagrams 1 and 2 in Figure 8.)

Step 4 Attach the other end of the shelf ground cable to the bay frame using a dual-hole lug connector according to the equipment bay frame specifications. (See Diagram 3 in Figure 8.)

Figure 8 Grounding ONS 15454 ANSI Chassis

Stop. You have completed grounding the chassis.


Locating and Grounding the Cisco ONS 15454 ETSI Chassis

Before locating and grounding the Cisco ONS 15454 ETSI chassis, you must complete the prerequisites mentioned in "Prerequisites" section. To locate the ground point and attach a ground cable to the Cisco ONS 15454 ETSI   chassis:


Warning 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



Step 1 Verify that the office ground cable is connected to the top of the bay and the office ground, according to local site practice. (See Figure 1 and Figure 2.)

Step 2 Insert the stripped end of the grounding wire into the open end of the grounding lug.

Step 3 Use the crimping tool to secure the grounding wire in two different places in the grounding lug.

Step 4 Locate the grounding receptacle on the side panel of the chassis. (See diagram 1 in Figure 9.)

Step 5 Place the grounding lug against the grounding receptacle on the side panel of the chassis. (See diagram 2 in Figure 9.)

Step 6 Insert one of the screws through the locking washer and through the hole in the grounding lug. Insert the screw into the threaded holes on the right side of the shelf. Ensure that the grounding lug does not interfere with other system hardware or rack equipment.

Step 7 Repeat Step 6 with the second screw.

Step 8 Prepare the other end of the grounding wire and connect it to an appropriate grounding point in your site to ensure adequate earth ground for the chassis. (See diagram 3 in Figure 9.)

Figure 9 Grounding ONS 15454 ETSI Chassis

Stop. You have completed grounding the chassis.


Locating and Grounding the Cisco ONS 15310-MA ANSI and ONS 15310-MA ETSI Chassis

Before locating and grounding the Cisco ONS 15310-MA ANSI and the ONS 15310-MA ETSI chassis, you must complete the prerequisites mentioned in "Prerequisites" section. To locate the ground point and attach a ground cable to the Cisco ONS15310-MA ANSI and ONS 15310-MA ETSI chassis:


Step 1 Verify that the office ground cable is connected to the top of the rack according to local site practice. (See Figure 1 and Figure 2.)


Note The ONS 15310-MA is installed in a weather-proof cabinet for outdoors installation, also known as an Outside Plant (OSP) installation. A 1 inch (minimum) wide copper braid (with minimum total strands count of 1050 x 36 AWG or 260 x 36 AWG) is required for ONS 15310-MA OSP installations.


Step 2 Remove any paint and other nonconductive coatings from the surfaces between the chassis ground and the rack frame ground posts. Clean the mating surfaces and apply an appropriate antioxidant compound to the bare conductors.


Note Additional ground cables may be added depending on local site practice. The ONS 15310-MA ANSI chassis is designated only for a Common Bonding Network (CBN), according to the GR-1089-CORE Issue 4 (sec 9.3) definitions.



Note The DC power battery return (BR) terminal or positive terminal must be grounded at the source end (power feed or DC mains power end). The DC power BR input terminal is not connected to the equipment frame (chassis), so it is configured as DC-I according to the GR-1089-CORE, Issue 4 (sec 9.8.3) definitions.


Step 3 Locate the ground connection points, which are located on the left, right, and bottom of the ONS 15310-MA chassis. (See diagram 1 in Figure 10.)

Step 4 Using a wire stripper, strip 0.875 inches (2.22 cm) from the end of the ground cable. Crimp the two-hole lug to the ground cable.

Step 5 Line up the holes on the lug with the holes on the ground connection point. Use two 10-32 screws to attach the lug to the ground connection point. (See diagram 2 in Figure 10.)

Step 6 Attach the other end of the chassis ground cable to the rack. (See diagram 3 in Figure 10.)

Figure 10 Grounding ONS 15310-MA ANSI and ONS 15310-MA ETSI Chassis

Stop. You have completed grounding the chassis.


Locating and Grounding the Cisco ONS 15310-CL ANSI Chassis

Before locating and grounding the Cisco ONS 15310-CL ANSI chassis, you must complete the prerequisites mentioned in "Prerequisites" section. To locate the ground points and attach a ground cable to the Cisco ONS 15310-CL ANSI chassis:


Step 1 Verify that the office ground cable is connected to the top of the rack according to local site practice. (See Figure 1 and Figure 2.)

Step 2 Remove any paint and other nonconductive coatings from the surfaces between the shelf ground and the rack frame ground posts. Clean the mating surfaces and apply an appropriate antioxidant compound to the bare conductors.


Note Additional ground cables may be added depending on local site practice. The ONS 15310-CL ANSI chassis is designated only for a Common Bonding Network (CBN), according to the GR-1089-CORE Issue 4 (sec 9.3) definitions.



Note The DC power battery return (BR) terminal or positive terminal must be grounded at the source end (power feed or DC mains power end). The DC power BR input terminal is not connected to the equipment frame (chassis), so it is configured as DC-I according to the GR-1089-CORE, Issue 4 (sec 9.8.3) definitions.


Step 3 Using the 10-32 screws that came with the ship kit, attach one end of the chassis ground cable to the ground connection point located on the center of the rear panel as you face the chassis. Using a wire stripper, strip 0.875 inches (2.22 cm) from the end of the ground cable.

Step 4 Crimp the two-hole lug to the ground cable.

Step 5 Line up the holes on the lug with the holes on the ground connection point, located at the center of the rear panel as you face the chassis. Use two 10-32 screws to attach the lug to the ground connection point. (See diagrams 1 and 2 in Figure 11.)

Step 6 Attach the other end of the chassis ground cable to the rack. (See diagram 3 in Figure 11.)

Figure 11 Grounding ONS 15310-CL ANSI Chassis

Stop. You have completed grounding the chassis.


Locating and Grounding the Cisco ONS 15600 ANSI and ONS 15600 ETSI  Bay Assembly

Before locating and grounding the Cisco ONS 15600 ANSI and Cisco ONS 15600 ETSI chassis bay assembly, you must complete the prerequisites mentioned in "Prerequisites" section. To locate the ground point and attach a ground cable to the office ground from the Cisco ONS 15600 ANSI and the Cisco ONS 15600 ETSI chassis bay assembly:


Note The Cisco ONS 15600 ANSI and ONS 15600 ETSI chassis ground points are already connected to the grounding points on the bay assembly.



Warning 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 213



Note Remove any paint from the two-hole lug position on the bay front ground holes and apply the antioxidant compound to this position.



Step 1 Locate the ground access points on the bay assembly of the chassis. (See diagram 1 in Figure 12.)

Step 2 Connect the office ground cable to the bay front two-hole lug position. (See diagram 2 in Figure 12.)

Figure 12 Grounding ONS 15600 Bay Assembly

Stop. You have completed grounding the bay assembly.


Installing the Line Cards

This section describes how to properly install the line cards. The following topics are included in this section:

Preparing the Work Surface for Installing Line Cards

Transporting Line Cards

Handling Line Cards

Removing and Installing Line Cards

Preparing the Work Surface for Installing Line Cards

This section illustrates how you and the work surface that you are placing the line card on must be properly grounded. As shown in Figure 13, ensure that you follow these steps:

Ground yourself by wearing an ESD wrist band that is connected to the earth ground.

Ground the table to the earth ground.

Ground the chassis to the earth ground.

Ground the rack to the earth ground.

Figure 13 Work Surface for Installing the Line Cards

Transporting Line Cards

This section illustrates how the line card must be kept in a sealed antistatic bag while being transported. (Figure 14)

Figure 14 Transporting Line Cards

Handling Line Cards

This section illustrates how you must be properly grounded before removing the line card from the antistatic bag. It also illustrates how you must handle the line card by the front panel and the metal carrier only. (Figure 15)

Figure 15 Handling Line Cards

Removing and Installing Line Cards

This section illustrates the precautions to be taken while removing and installing the line cards. (Figure 16)

Figure 16 Removing and Installing Line Cards

Any Internet Protocol (IP) addresses used in this document are not intended to be actual addresses. Any examples, command display output, and figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses in illustrative content is unintentional and coincidental.

© 2009-2011 Cisco Systems, Inc. All rights reserved.