CALIENT S320 Setup guide

S320 Optical Circuit Switch (OCS)
Repair and Diagnostics Field Guide

S320 OCS Repair and Diagnostics Field Guide
Doc. Part No. 460163-00
May 5, 2015
Rev. B1
Page 2 of 22
Revision History
Date
Version
Description
Author(s)
01/21/2013
A
Legacy documentation describing S320 safety
alerts and alarms
T. Douglas
05/05/2015
B1
Update, edit doc content and implement new
user docs formatting
T. Schilz

S320 OCS Repair and Diagnostics Field Guide
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© 2015 CALIENT Technologies, Inc. All rights reserved.
CALIENT, CALIENT Technologies, the CALIENT design logo, and the tag line “Move the light,
not the fiber”are registered trademarks of CALIENT Technologies, Inc. in the U.S. and other
countries. All other marks belong to their respective owners.
Confidential and Proprietary Information
This document contains confidential and proprietary information of CALIENT Technologies,
which is protected by the copyright laws of the United States, international copyright treaties,
and all other applicable national laws. Any unauthorized use, reproduction, or transfer of
any information in this document is strictly prohibited. This document contains information
regarding technology that is protected under one or more pending or issued United States
and foreign patents. This manual may not be copied wholly or in part without prior written
permission from CALIENT Technologies. To obtain such permission, please contact:
CALIENT Technologies
25 Castilian Drive
Goleta, CA 93117 USA
Phone: [phone]
www.calient.net
Service and Support
CALIENT offers a wide range of product support programs including installation support, repair
services, maintenance services and technical training.
If you need technical assistance with CALIENT’s products, please visit our automated customer
support portal at http://support.calient.net or email [email protected].
If you are experiencing a service-affecting emergency, please contact us on the following
numbers:
Within US: 1.877.682.1160
International: International Call Prefix + Country Code + 1.877.682.1160
If your call is not answered immediately, please leave a message. Messages are retrieved
continuously.
Document Part Number: 460163-00, Rev. B1

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Table of Contents
1INTRODUCTION...................................................................................................................... 7
2SAFETY SUMMARY ................................................................................................................. 8
2.1 Laser Safety........................................................................................................................ 8
2.1.1 General Precautions ................................................................................................. 8
2.1.2 Laser Sources .......................................................................................................... 10
2.1.2.1 Class 1 Laser .................................................................................................... 10
2.2 Electrostatic Discharge .................................................................................................... 10
2.3 Optical Connections......................................................................................................... 11
2.3.1 Keeping Fiber Connectors Clean............................................................................. 11
2.3.2 Optical Fiber Bend Radius....................................................................................... 11
2.4 Fiber-Optic Connector Cleaning ...................................................................................... 12
3CATEGORY A ALARMS .......................................................................................................... 13
3.1 Replacement Part Types .................................................................................................. 13
3.2 Part Failure Notification................................................................................................... 13
3.3 Corrective Action ............................................................................................................. 13
3.4 Replacement Part Numbers ............................................................................................ 14
3.5 DC Power Modules .......................................................................................................... 14
3.5.1 Removing the DC Power Module ........................................................................... 15
3.5.2 Installing the DC Power Module............................................................................. 15
3.6 Fan Module...................................................................................................................... 15
3.6.1 Removing the Fan Module ..................................................................................... 16
3.6.2 Installing the Fan Module....................................................................................... 16
3.7 Fan Filter .......................................................................................................................... 16
3.7.1 Removing the Fan Filter.......................................................................................... 17
3.7.2 Installing the Fan Filter ........................................................................................... 18
4CATEGORY B ALARMS .......................................................................................................... 19
4.1 Alarm Severity.................................................................................................................. 19
4.1.1 Alarm Definitions.................................................................................................... 19

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4.1.2 Symptoms, Severity and Corrective Action ............................................................ 20
List of Figures
Figure 1 –S320 -48 VDC Power Module....................................................................................... 14
Figure 2 –S320 Fan Module ......................................................................................................... 15
Figure 3 –S320 Fan Filter.............................................................................................................. 16
Figure 4 –Fan Filter Faceplate...................................................................................................... 17
Figure 5 –Fan Filter Removal and Installation ............................................................................. 17
List of Tables
Table 1 –External Alarm Interfaces.............................................................................................. 13
Table 2 –S320 Replacement Parts................................................................................................ 14
Table 3 –Category B Alarms: Symptoms, Severity, Corrective Action......................................... 20

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PREFACE
The S320 Optical Circuit Switch (OCS) Repair and Diagnostics Field Guide provides information
about general safety when working on or around the S320 fiber-optic switch, system alarms
and replacement of system components in the field.
AUDIENCE
This guide is written for both network operations center personnel and field service personnel
who use and maintain the S320 OCS.

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1INTRODUCTION
This field guide provides detailed information about the hardware components comprising the
CALIENT S320 Optical Circuit Switch (OCS).
Topics covered herein include safety precautions for installing, using and maintaining the switch;
an overview of OCS functionality and physical architecture, including precise descriptions of the
LEDs and physical interfaces located on the front and rear of the OCS chassis; and step-by-step
procedures for unpacking and installing a new S320 OCS.
This document also provides system specifications for regulatory, reliability, space, optical and
environmental requirements, as well as CALIENT part numbers for ordering additional systems
or hardware components that may eventually need replacement (e.g., fan filter).

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2SAFETY SUMMARY
This Safety Summary reviews specific safety precautions to observe when installing, operating
or working around the S320 OCS.
When preparing to install the S320 OCS, review the following list to ensure a safe installation:
If a site survey was performed (recommended), review the completed site survey sheet
for accurate site information.
Review the safety precautions, notes and warnings contained throughout this manual.
Observe all weight cautions related to handling equipment. Ensure that adequate
personnel and resources are available to lift and transport the switch during installation.
Locate power sources and observe all safety precautions related to connecting and
applying electrical power to the switch.
Implement all electrostatic discharge (ESD) prevention measures when handling the
S320 OCS.
Inspect the site for sources of laser light and take all applicable precautions when near
such sources.
Observe all recommended precautions when moving and handling hazardous materials
such as compressed gas and alcohol.
Exercise the prescribed cautions when handling and cleaning optical fiber.
2.1 Laser Safety
It is especially important to observe the proper precautions when working with or around
lasers. The following subsections describe the potential risks associated with laser technology
and the recommended procedures for using it safely.
2.1.1 General Precautions
The S320 OCS switches coherent (laser) light between input and output optical-fiber
terminations. The range of the light wavelengths passed through the equipment is outside the
visible spectrum. Because the unaided human eye cannot detect the presence of this light, the
light can pose a serious health hazard.
If the hazard is not mitigated through the use of proper safety equipment and the observance
of safety precautions, blindness can result. This section presents the general safety precautions
that must be observed by personnel working on or around the S320 OCS to reduce or eliminate
the laser radiation hazard.

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Use of controls, adjustments or procedures other than those specified in this
guide could result in hazardous radiation exposure.
The S320 OCS can redirect the laser energy supplied by any one of the input
fiber-optic cables to any one of the output fiber-optic cables. To avoid injury, all of
the switch’s optical connectors must either be attached to a fiber-optic cable that
is part of a closed optical system, or capped with the supplied connector covers.
Under no circumstance should attempts be made to operate this equipment with
a fiber-optic connector that is uncapped or disconnected from a closed optical
communication system fiber-optic cable.
All service to this device that requires removal of the housing panel must be
performed by the manufacturer or its authorized agent(s). Note: None of the
repairs described in this guide require removal of the housing panel.
Personnel working near any equipment carrying optical traffic may not be aware of possible
exposure to light radiating from uncovered connectors of the equipment.
If the S320’s connectors are not capped, light might escape from them and cause physical
damage to personnel. To avoid potential harm from exposure to light, always practice the
following safety measures:
Always keep fiber cables connected to all of the S320 Optical Circuit Switch connectors,
whether or not the fiber termination is providing an active cross-connection. If a cable is
not connected to a connector, be sure the connector is capped. This prevents accidental
exposure to a light source, and it also helps to prevent physical contamination of the
connector’s fiber-optic surfaces.
Never look directly into a fiber end or into any optical connector. There is no warning
when the connector is connected to a light source.
Wear the appropriate laser safety glasses when a laser source may be present. When
evaluating safety glasses, always consider the laser power, wavelength and the
manufacturer class warnings for the laser device.

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2.1.2 Laser Sources
The S320 Optical Circuit Switch generates Class 1 coherent (laser) light at 1310 nm wavelength
and -5.5 dBm. It also passes higher-powered laser light from external sources. The S320 Optical
Circuit Switch passes laser radiation through its fiber terminations when traffic-carrying fibers
are connected to the switch.
2.1.2.1 Class 1 Laser
The S320 Optical Circuit Switch uses a Class 1 laser internally as a test source. Light from this
laser could potentially be available at a fiber termination.
The S320 OCS is certified as a Class 1 laser product per the requirements of the U.S.
Federal Product Performance Standard for Laser Products contained in the regulations
in 21 CFR 1040.10. Class 1 laser products are not considered to be hazardous;
however, lasers more powerful than Class 1 may be connected to the S320 OCS.
Although the S320 OCS has no laser sources higher than Class 1, the total optical
power through the equipment—and potentially available at any one of the fiber
terminations, split-out cable connectors, patch-panel cables or patch-panel coupling
sleeves—could aggregate to the level of a Class 4 (highly hazardous) source.
2.2 Electrostatic Discharge
Components that contain integrated circuits can be damaged by static electricity. Static
electricity potentials develop through the movement of human bodies, and are released as
Electrostatic Discharges (ESDs) whenever they come in contact with other objects. Dry air
allows greater static charges to accumulate. However, static electricity potentials high enough
to damage circuits can occur in any environment, so taking precautions against ESD is
imperative when working around the S320.
The ESD symbol shown here appears on packaging and other items as a reminder to
take the necessary precautions to prevent electrostatic damage to the S320 OCS.

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To reduce the possibility of ESD damage to equipment, most racks provide grounding jacks into
which anti-static wrist straps can be plugged. Observe the following precautions whenever you
are working with the S320 Optical Circuit Switch:
Always wear a tested-and-verified grounded wrist strap to prevent ESD, and be sure the
wrist strap is plugged into a grounding jack.
Observe warning labels on bags and cartons. Whenever possible, do not remove a
module from its antistatic packaging until it is to be installed in the rack.
Always store and transport any electronic module in antistatic packaging.
Keep all static-generating materials (such as plastic foil wrappers, other plastics,
Styrofoam and cardboard containers) away from the switch.
Maintain ambient humidity within the 20% to 85% limits specified for S320 operation.
2.3 Optical Connections
2.3.1 Keeping Fiber Connectors Clean
Optical fiber connectors require special handling to mitigate contamination from dust and
debris that could increase insertion loss and return loss. For instance, contamination during
connection of the 8-degree-angled surface of APC fiber can increase insertion loss and back
reflection. Once a pair of clean connectors is mated, however, it is unlikely that further
contamination will occur until the next time the fibers are disconnected.
To minimize the effects of particulate contamination, the surface of the connector end must be
cleaned before connection. This cleaning operation is extremely critical, as an improperly
prepared optical surface can cause performance degradation.
2.3.2 Optical Fiber Bend Radius
An optical fiber or fiber-optic cable should not be bent below the Minimum Bend Radius (MBR.)
Bending a fiber below the MBR can result in damage to the fiber, which can adversely affect
S320 performance. In general, any improper handling of optical fiber and cables has the
potential to reduce system performance. As such, make sure to observe the following
precautions when working with fiber and cable:
Keep optical surfaces clean; only trained personnel should clean optical cables
and connectors.
When optical cables or optical connectors are not connected, make sure they are
capped. Be sure to use clean caps.
Handle fiber cables as little as possible.

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Never eat, drink or smoke around optical equipment.
Keep cable runs neat and observe the MBR specified for the cable type when bending
fiber-optic cables.
2.4 Fiber-Optic Connector Cleaning
CALIENT recommends customers clean fiber-optic connectors according to the manufacturer’s
instructions.

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3CATEGORY A ALARMS
Customers can address Category A Alarms. To ensure the highest rates of uptime, CALIENT
products are designed to allow customers to replace the components listed in section 3.1
without adversely affecting the warranty or the integrity of warrantied chassis seals.
3.1 Replacement Part Types
There are four (4) types of field-replaceable parts for the S320 OCS:
Power Modules
Fan Modules
Fan Filters
Fiber Management Assembly
Breaking chassis shields can void or limit the product warranty. Replacing power
modules, fan modules, fan filters and the fiber management assembly does not
require the breaking of chassis seals. If field service personnel think it will be necessary
to break a seal to complete a repair, they should contact CALIENT technical support
before breaking or removing the chassis seal.
3.2 Part Failure Notification
Typically, Category A alarm notification indicates failure of a plug-in unit. This can be readily
corrected by replacement of the unit by the customer.
3.3 Corrective Action
For Category A alarms, customers should replace the failed part with an on-hand spare part or
request a Return Material Authorization (RMA) from CALIENT Technical Support. Table 1 lists
the external alarm interfaces for the S320 OCS.
Table 1 –External Alarm Interfaces
Alarm Description
Fault Severity
Action
Fan Failed
MJ
Hot swappable; keep spare
Power Module Failed
NA
Hot swappable; keep spare

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3.4 Replacement Part Numbers
Table 2 provides a brief description and the part number for each field-replaceable component
of the S320 OCS.
Table 2 –S320 Replacement Parts
Replacement Part
Part Number
S-Series -48 VDC Power Module with Terminal Strip
700513-00
S-Series Rear Fan Module
700489-00
S-Series Fan Filter Module
280840-00
S-Series Fiber Management Assembly, 7RU
CT-S-FMA7-00-00
All of the replacement parts listed in Table 2 are hot swappable.
3.5 DC Power Modules
All power modules, whether DC or AC, are accessed and serviced identically. Figure 1 shows the
front panel of the -48V DC Power Module.
Figure 1 –S320 -48 VDC Power Module

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3.5.1 Removing the DC Power Module
The following procedure describes how to properly remove the DC power module:
1. Make sure the power module feed is de-energized or disconnected.
2. Remove the screws located at the top-center and bottom-center of the power module
faceplate.
3. Gently pull the power module out of its receptacle, keeping it straight and level while
doing so.
4. Unplug the connector tail.
3.5.2 Installing the DC Power Module
The following procedure describes how to properly install the DC power module:
1. Attach the replacement power module to the connector tail.
2. Gently push the new power module into its receptacle, keeping it straight and level
while doing so.
3. Insert and tighten the top and bottom screws.
4. Re-energize the power module.
3.6 Fan Module
Figure 2 shows the front of the S320 OCS Fan Module.
Figure 2 –S320 Fan Module

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3.6.1 Removing the Fan Module
The following procedure describes how to properly remove the S320 OCS fan module:
1. Remove each of the nine screws from the fan module faceplate.
2. Gently pull the fan module out of its receptacle, keeping it straight and level while
doing so.
3. Unplug the connector tail.
3.6.2 Installing the Fan Module
The following procedure describes how to properly install the S320 OCS fan module:
1. Attach the replacement fan module to the connector tail.
2. Gently push the new fan module into its receptacle, keeping it straight and level while
doing so.
3. Insert each of the nine screws into the faceplate and tighten each one.
3.7 Fan Filter
The S320 OCS Fan Filter (Figure 3) should be inspected at six-month intervals and replaced
annually. Clogged fan filters can result in Type A alarms and reduce the lifespan of fan modules.
Fan filter dimensions are 5.5” x 4.8”.
Figure 3 –S320 Fan Filter

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3.7.1 Removing the Fan Filter
The following procedure describes how to properly remove the fan filter from its housing in the
S320 chassis:
1. Remove each of the four screws from the faceplate of the fan filter housing (Figure 4).
Figure 4 –Fan Filter Faceplate
2. Gently pull the filter housing from the chassis.
3. Remove the filter by sliding it up and away from the housing (Figure 5).
Figure 5 –Fan Filter Removal and Installation
Slot
FRONT
REAR

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Although CALIENT recommends replacing the fan filter at every inspection, it can be
cleaned using filter cleaning solvent or water. If you do clean the filter, make sure it is
completely dry before reinstalling it in the switch chassis. At a minimum, the fan filter
should be replaced annually.
3.7.2 Installing the Fan Filter
The following procedure describes how to properly install the fan filter in the S320 OCS chassis:
1. Insert the leading edge of the replacement filter into the slot on each side of the
filter housing (Figure 5).
2. Gently push the filter toward the rear of the housing until it is fully inserted.
3. Reinsert the fan filter housing into the chassis.
4. Secure the housing to the chassis by inserting and tightening the four screws on the
fan filter faceplate.

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4CATEGORY B ALARMS
Category B alarms require more additional diagnostic screening than Category A alarms and
may require CALIENT Technical Support. Additional information on Category B alarms is
provided in section 4.1.2.
4.1 Alarm Severity
The S320 OCS generates an alarm when it detects a problem with a physical entity or software
component that can potentially compromise system operation. The type of alarm generated
depends on its severity.
4.1.1 Alarm Definitions
The following definitions describe the characteristics of each Category B alarm:
Critical (CR) –This category of alarm is generated when a situation is detected that
affects the operating stability of a component.
Critical alarms can be service-affecting and require immediate corrective action. Existing
cross-connections will not be affected provided the failure is not related to the driver
cards. Depending on the alarm situation, new connections may or may not be allowed.
Major (MJ) –This category of alarm is generated when a situation is detected that
significantly affects the operating stability of at least one component. Typically, areas
of the equipment that are not directly affected by the failed component can continue
operating without disruption.
Major alarms require immediate corrective action to restore the affected component’s
operating stability.
Minor (MR) –This category of alarm is generated when a situation is detected that
minimally affects the operating stability of at least one component. For the most part,
the system can operate normally under this condition, although the affected component
may cause some degradation of service.
Minor alarms require investigation within 24 hours to determine the potential impact on
the equipment and to prevent escalation to a more severe state.
Not Alarmed (NA) –This category of alarm applies to non-service-affecting events that
do not generate an alarm.

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4.1.2 Symptoms, Severity and Corrective Action
Table 3 lists the symptoms, severity and corrective action associated with the various types of
Category B alarms.
Table 3 –Category B Alarms: Symptoms, Severity, Corrective Action
Symptom
Severity
Corrective Action
Card failed
CR
Requires immediate corrective action;
contact CALIENT Support
Incorrect switch ID on CP
MJ
Contact CALIENT Support
Multi-card failure
CR
Requires immediate corrective action;
contact CALIENT Support
No standby card available
MJ
Verify whether Active/Standby CP card
is running in standalone mode; check
redundancy status; may require
escalation to CALIENT Support
Physical interface is down
MJ
Check physical connectivity to switch;
may require further analysis by CALIENT
Support
Subsystem restarted
MJ
Check overall system health; may
require further analysis by CALIENT
Support
Hardware/software failure
MJ
Requires further analysis by CALIENT
Support
Temperature exceeded
MJ
Check ambient temperature; may
require further analysis by CALIENT
Support
CPU over-utilized
MJ
Check system for any abnormalities;
may require further analysis by CALIENT
Support
Disk usage exceeded threshold
MJ
Disk cleanup on log files and core files
can be done by customer; contact
CALIENT Support for further analysis
Memory usage exceeded
threshold
MJ
Check for any abnormal behavior; may
require further analysis by CALIENT
Support
Upgrade failure
MJ
Contact CALIENT Support