Cisco ONS 15310-MA User manual

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© 2010 Cisco Systems, Inc. All rights reserved.
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Installing the Rear Cover on the
Cisco ONS 15310-MA
Product Name: 15310-MA-BP-COVER=
This document explains how to install the Cisco ONS 15310-MA rear cover. It also contains a
description of the rear cover, installation equipment and procedures, and a list of specifications. As
appropriate, use this document in conjunction with the Cisco ONS 15310-CL and Cisco ONS 15310-MA
Procedure Guide, the Cisco ONS 15310-CL and Cisco ONS 15310-MA Reference Manual, and the
Cisco ONS 15310-CL and Cisco ONS 15310-MA Troubleshooting Guide when working with the rear
cover.
This document contains the following sections:
•Rear Cover Description, page 1
•Rear Cover Specifications, page 2
•Install the Rear Cover on the ONS 15310-MA, page 2
•Related Documentation, page 7
•Obtaining Documentation, Obtaining Support, and Security Guidelines, page 7
Rear Cover Description
The plastic rear cover allows you to protect the DS-1 connections and all the other connectors installed
on the back plane of the ONS 15310-MA chassis.
Note You must install the rear cover only after connecting all the cables on the back plane.
Note Depending on the field requirements, the rear cover can be installed with two different offsets from the
back plane.

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Rear Cover Specifications
Rear Cover Specifications
•Environmental
– Operating temperature: –40 to + 65 degrees Celsius (–40 to 149 degrees Fahrenheit)
– Operating humidity: 5 to 95%, noncondensing
Caution Do not expose the rear cover to direct sunlight.
•Dimensions
– 10.59 in. x 10.44 in. x 0.5 in. (26.9 cm x 26.52 cm x 1.27 cm)
– Weight: Approximately 0.67 lb (300 g)
Install the Rear Cover on the ONS 15310-MA
The following parts are required to install the rear cover on the ONS 15310-MA:
•#2 Phillips screwdriver
•1/4-inch nut driver
•Six 1/4-inch hexagonal standoffs, 6-32x1.75 or 6-32x3.25
•Six panhead screws 6-32x0.31
•One plastic rear cover

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Install the Rear Cover on the ONS 15310-MA
Step 1 Unscrew the three panhead screws from each DS-1 unit, located on the A side and B side of the
back plane (Figure 1).
Figure 1 ONS 15310-MA Backplane
240844

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Install the Rear Cover on the ONS 15310-MA
Step 2 Use the 1/4-inch nut driver to install the six hexagonal standoffs into the mounting holes that previously
held the six panhead screws.
Note You can place the rear cover with either of two offsets from the back plane. Assemble the
6.32x1.75 or the 6.32x3.25 hexagonal standoffs for using either offset option.
The 6.32x3.25 standoffs should be used when the DS-1 cable direction exchangers
(15310-MA-DS1-PLUG=) are assembled on one of the DS-1 receptacle connectors of the
Backplane Interface Connector (BIC) unit.

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Install the Rear Cover on the ONS 15310-MA
Step 3 Align the holes on the rear cover with the hexagonal standoffs (Figure 2 and Figure 3).
Figure 2 Rear Cover Aligned to the 6-32x1.75 Hexagonal Standoffs on the ONS 15310-MA
back plane
240843
1/4-inch hexagonal
standoff, 6-32x1.75
DS1 plug
connector

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Install the Rear Cover on the ONS 15310-MA
Figure 3 Rear Cover Aligned to the 6-32x3.25 Hexagonal Standoffs on the ONS 15310-MA
back plane
279172
1/4-inch hexagonal
standoff, 6-32 x 3.25
DS1 plug
connector
Direction exchanger
(15310-MA-DS1-PLUG=)

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Related Documentation
Step 4 Install and tighten the six panhead screws that you removed in Step 1 into the holes on the hexagonal
standoffs (Figure 2 and Figure 3).
Note You can also preinstall the panhead screws on the hexagonal standoffs, place the rear cover on the
standoffs, and finally tighten the panhead screws. The rear cover has oval cut-outs to allow this
operation.
Related Documentation
•Cisco ONS 15310-CL and Cisco ONS 15310-MA Procedure Guide
•Cisco ONS 15310-CL and Cisco ONS 15310-MA Reference Manual
•Cisco ONS 15310-CL and Cisco ONS 15310-MA Troubleshooting Guide
Obtaining Documentation, Obtaining Support, and Security
Guidelines
For information on obtaining documentation, obtaining support, providing documentation feedback,
security guidelines, and also recommended aliases and general Cisco documents, see the monthly
What’s New in Cisco Product Documentation, which also lists all new and revised Cisco technical
documentation, at:
http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html
This document is to be used in conjunction with the documents listed in the “Related Documentation” section.
Cisco and the Cisco Logo are trademarks of Cisco Systems, Inc. and/or its affiliates in the U.S. and other countries. A listing of Cisco's trademarks
can be found at www.cisco.com/go/trademarks. Third party trademarks mentioned are the property of their respective owners. The use of the word
partner does not imply a partnership relationship between Cisco and any other company. (1005R)
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.
© 2010 Cisco Systems, Inc. All rights reserved.
Printed in the USA on recycled paper containing 10% postconsumer waste.

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Obtaining Documentation, Obtaining Support, and Security Guidelines