Black Box LMC100C-M User manual

1000 Park Drive • Lawrence, PA 15055-1018 USA
TEL: [phone] • FAX: [phone]
www.blackbox.com
This manual contains information to help with the installation and
operation of Black Box Corporation's series of SNMP Manageable Media
Converters:
LMC100C-M LMC100C-S LMC120A LMC120A-DC LMC121A
LMC121A-DC LMC600A LMC600A-DC LMC601A LMC601A-DC
LMC130C-ST LMC130C-SC LMC131C-ST LMC133C LMC131C-SC
LMC132C-ST LMC132C-SC LMC134C LMC613C LMC610C-ST
LMC610C-SC LMC611C-ST LMC611C-SC LMC612C-ST LMC612C-SC
LHC614C-ST LHC614C-SC LHC615C-ST LHC615C-SC LHC616C-ST
LHC616C-SC LHC617C-ST LHC617C-SC LHC618C-ST LHC618C-SC
LHC619C-ST LHC619C-SC LHC620C-ST LHC620C-SC
SNMP Manageable
Media Converter Chassis
Installation Manual
Document Number 50-80210BB-00 B0 July 1998

Disclaimer
Black Box Corporation makes no warranties with respect to this document and disclaims any
implied warranties of merchantability or fitness for a particular purpose. Black Box Corporation
assumes no responsibility for any errors that may appear in this document or for incidental
consequential damages in connection with the performance or use of this material.
This document contains proprietary information which is protected by copyright. No part may
be reproduced in any way without prior consent of Black Box Corporation.
Copyright
© 1997 - 1998 Black Box Corporation. All rights reserved.
Trademarks
Brands or product names may be trademarks and are the properties of their respective
companies.

3
Contents
Chapter 1 Introduction
About SNMP Manageable Media Converters . . . . . . . . . . . . . .1.1
About SNMP Management Modules . . . . . . . . . . . . . . . . . . . .1.1
About SNMP Manageable 12-Slot Telco Chassis . . . . . . . . . . .1.2
About SNMP Telco Modules . . . . . . . . . . . . . . . . . . . . . . . . . .1.3
About SNMP Manageable 6-Slot Chassis . . . . . . . . . . . . . . . . .1.4
About SNMP Manageable Modules . . . . . . . . . . . . . . . . . . . . .1.5
Chapter 2 Hardware Installation
Configuring SNMP Manageable Modules . . . . . . . . . . . . . . . .2.1
Installing an SNMP Manageable Module . . . . . . . . . . . . . . . . .2.1
Installing a Power Supply Module in an SNMP
Media Converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.1
Installing an Unmanaged SNMP Media Converter . . . . . . . . . .2.2
Installing a Managed SNMP Media Converter . . . . . . . . . . . . .2.3
Installing SNMP Master/Slave Modules . . . . . . . . . . . . . . . . . .2.3
Connecting Master and Slave SNMP Media Converters . . . . . .2.3
Connecting a Master SNMP Media Converter . . . . . . . . . . . . .2.4
Connecting a Slave SNMP Media Converter . . . . . . . . . . . . . .2.5
LED Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.5
LEDs on SNMP Master Modules . . . . . . . . . . . . . . . . . . .2.6
LEDs on SNMP Slave Modules . . . . . . . . . . . . . . . . . . . . .2.6
LinkLoss and FiberAlert . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.7
Troubleshooting with LinkLoss and FiberAlert . . . . . . . . . . . . .2.8
Chapter 3 Technical Specifications
Telco Cable and Connector Pinouts . . . . . . . . . . . . . . . . . . . .3.1
Fiber Optic Cleaning Guidelines . . . . . . . . . . . . . . . . . . . . . .3.2
Electrostatic Discharge Precautions . . . . . . . . . . . . . . . . . . . .3.2
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.3
Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.3
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.3
Chapter 4 General Information
Customer Service Information . . . . . . . . . . . . . . . . . . . . . . . .4.1
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.1
Federal Communications Commission Radio Frequency
Interference Statement . . . . . . . . . . . . . . . . . . . . . . . . . . .4.1
Safety Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.2

Chapter 1
Introduction
About SNMP Manageable Media Converters
As networks grow in size and complexity, the ability to quickly
detect problems and determine where they reside in your network
becomes increasingly important. Using interchangeable media
conversion modules that can be installed in any combination, the
SNMP Manageable Media Converter series of products (including
SNMP Manageable 12-Slot Telco Chassis and SNMP Manageable
6-Slot Chassis) not only can meet virtually any installation
requirement, but also provides fault isolation information through
user-configurable SNMP management software.
NOTE: SNMP Manageable 12-Slot Telco Chassis and SNMP
Manageable 6-Slot Chassis will be referred to as SNMP Media
Converters except where differences need to be indicated.
About SNMP Management Modules
Figure 1.1 SNMP Master and Slave Management Modules
From each SNMP Media Converter equipped with an SNMP Master
Management Module (hereafter referred to as SNMP Master Module),
you can create logical and physical managed stacks that map to your
network configuration. Each SNMP Master Module can manage as
many as 60 conversion modules installed in up to six chassis (one
Master SNMP Media Converter and five SNMP Media Converters with
SNMP Slave Management Modules installed). Each SNMP Slave
Management Module (hereafter referred to as SNMP Slave Module)
includes an RS-485 SNMP management uplink, allowing up to 500
1.1

meters between the Master SNMP Media Converter and the farthest
Slave SNMP Media Converter using standard 10Base-T twisted pair
cabling. The SNMP Master Module connects to the LAN via an
external RJ-45 hub connection for in-band management control.
The following SNMP Management Modules are available:
SNMP Management Master Module — includes two RJ-45
connectors, one for a 10 Mbps Ethernet connection,
the other for a serial RS-485 connection
(LMC100C-M)
SNMP Management Slave Module — includes two RJ-45
connectors for two serial RS-485 connections
(LMC100C-S)
About SNMP Manageable 12-Slot Telco Chassis
Figure 1.2 SNMP 12-Slot Telco Chassis with SNMP Master Module
SNMP Manageable 12-Slot Telco Chassis (hereafter referred to as
SNMP Telco Chassis) is a modular, 10 Mbps Ethernet, SNMP-
manageable media converter designed to convert 50-pin Telco
twisted pair (10Base-T) connections to BNC (10Base-2) thin coax, ST
or SC (10Base-FL) single-mode and multi-mode fiber and RJ-45
(10Base-T) twisted pair.
The SNMP Telco Chassis includes one slot for installing an SNMP
Management Module (either SNMP Master or SNMP Slave) and 12
slots for installing any combination of 10 Mbps SNMP Manageable
Modules for 12-Slot Telco Chassis (hereafter referred to as SNMP Telco
Modules). It is available with 90/240 VAC or -48 VDC power with an
additional slot for a second, redundant power supply.
1.2

Each SNMP Telco Chassis includes one 50-pin Telco connector,
supporting up to twelve 10 Mbps Ethernet ports, and comes with one
2 ft. Telco cable.
The following SNMP Telco Chassis versions are available:
SNMP Telco Chassis 1U — rackmountable for 1 - 12
conversions; includes one 90/240 VAC power supply
and slot for installing second power supply
(LMC120A)
SNMP Telco Chassis-DC 1U — rackmountable for 1 - 12
conversions; includes one -48 VDC power supply
and slot for installing second power supply
(LMC120A-DC)
SNMP Telco Chassis 2U — rackmountable for 1 - 12
conversions; includes one 90/240 VAC power supply
and slot for installing second power supply
(LMC121A)
SNMP Telco Chassis-DC 2U — rackmountable for 1 - 12
conversions; includes one -48 VDC power supply
and slot for installing second power supply
(LMC121A-DC)
NOTE: All of the above chassis that are 1 U high have power and
data on opposite sides of the unit. All of the above chassis that are
2 U high are rackmountable with the data and power connections
on the same side of the chassis.
About SNMP Telco Modules
The following versions of SNMP Telco Modules are available:
SNMP Telco Module, FO — 10 Mbps Ethernet; includes one
pair ST (LMC130C-ST) or SC (LMC130C-SC)
connectors for a Telco to 850 nm multi-mode fiber
optic conversion
SNMP Telco Module, FO-SingleMode — 10 Mbps Ethernet;
includes one pair ST (LMC131C-ST) or SC
(LMC131C-SC) connectors for a Telco to 1300nm
single-mode fiber conversion
SNMP Telco Module, FO-SingleMode/PLUS — same as above
with higher power budget; includes one pair ST
(LMC132C-ST) or SC (LMC132C-SC) connectors
1.3

SNMP Telco Module, TP — 10 Mbps Ethernet; includes one
RJ-45 connector for a Telco to twisted pair conversion
(LMC133C)
SNMP Telco Module, BNC — 10 Mbps Ethernet; includes one
BNC connector for a Telco to thin coaxial conversion
(LMC134C)
About SNMP Manageable 6-Slot Chassis
Figure 1.3 SNMP 6-Slot Chassis with SNMP Master Module
SNMP Manageable 6-Slot Chassis (hereafter referred to as SNMP
6-Slot Chassis) is a modular, SNMP-manageable media converter
chassis designed for conversion between twisted pair (10Base-T),
BNC (10Base-2) thin coax and ST or SC (10Base-FL) single-mode or
multi-mode fiber; between twisted pair (100Base-TX) and ST or SC
(100 Base-FX) single-mode and multi-mode fiber; or between single-
mode and multi-mode fiber using transmission speeds of up to OC3
(S2MM).
The SNMP 6-Slot Chassis includes one slot for installing an SNMP
Management Module (either SNMP Master or Slave) and six slots for
installing any combination of SNMP Manageable Modules for 6-Slot
Chassis (hereafter referred to as SNMP Manageable Modules). It is
available with 90/240 VAC or -48 VDC power with an additional slot
for a second, redundant power supply.
The following SNMP 6-Slot Chassis versions are available:
SNMP 6-Slot Chassis 1U — rackmountable for 1 - 6
conversions; includes one universal power supply
(90/240 VAC) and slot for installing second power
supply (LMC600A)
1.4

SNMP 6-Slot Chassis-DC 1U — rackmountable for 1 - 6
conversions; includes one -48 VDC power supply
and slot for installing second power supply
(LMC600A-DC)
SNMP 6-Slot Chassis 2U — rackmountable for 1 - 6
conversions; includes one universal power supply
(90/240 VAC) and slot for installing second power
supply (LMC601A)
SNMP 6-Slot Chassis-DC 2U — rackmountable for 1 - 6
conversions; includes one -48 VDC power supply
and slot for installing second power supply
(LMC601A-DC)
NOTE: All of the above chassis that are 1 U high have power and
data on opposite sides of the unit. All of the above chassis that are
2 U high are rackmountable with the data and power connections
on the same side of the chassis.
About SNMP Manageable Modules
The following versions of SNMP Manageable Modules are available:
SNMP TP/FO — 10 Mbps Ethernet; includes one RJ-45
connector and one pair ST (LMC610C-ST) or SC
(LMC610C-SC) connectors; 850 nm multi-mode fiber
optic
SNMP TP/FO-SingleMode — 10 Mbps Ethernet; includes one
RJ-45 connector and one pair ST (LMC611C-ST) or
SC (LMC611C-SC) connectors; 1300 nm single-mode
fiber optic
SNMP TP/FO-SingleMode/PLUS — same as above with higher
power budget; includes one pair ST (LMC612C-ST)
or SC (LMC612C-SC) connectors
SNMP TP/BNC — 10 Mbps Ethernet; includes one RJ-45
connector and one BNC connector (LMC613C)
SNMP TX/FX — 100 Mbps Fast Ethernet; includes one RJ-45
connector and one pair ST (LHC614C-ST) or SC
(LHC614C-SC) connectors; 1300 nm multi-mode
fiber optic
1.5

SNMP TX/FX-SingleMode — 100 Mbps Fast Ethernet; includes
one RJ-45 connector and one pair ST (LHC615C-ST)
or SC (LHC615C-SC) connectors; 1300 nm single-
mode fiber optic
SNMP TX/FX-SingleMode/PLUS — same as above with higher
power budget; includes one pair ST (LHC616C-ST)
or SC (LHC616C-SC) connectors
SNMP S2MM 1300 MultiMode to 1300 SingleMode —
includes two pairs of ST (LHC619C-ST) or SC
(LHC619C-SC) connectors; 850 multi-mode to
1300 nm single-mode fiber optic
SNMP S2MM 1300 MultiMode to 1300 SingleMode/PLUS —
same as above with higher power budget; includes
two pairs of ST (LHC620C-ST) or SC (LHC620C-SC)
connectors
SNMP S2MM 850 MultiMode to 1300 SingleMode —
includes two pairs of ST (LHC617C-ST) or SC
(LHC617C-SC) connectors; 1300 nm multi-mode to
1300 nm single-mode fiber optic
SNMP S2MM 850 MultiMode to 1300 SingleMode/PLUS —
same as above with higher power budget; includes
two pairs of ST (LHC618C-ST) or SC (LHC618C-SC)
connectors
1.6

Chapter 2
Hardware Installation
SNMP Media Converters can be installed as either managed or
unmanaged devices. Hardware installation information for both is
included in this chapter. If the SNMP Media Converter is to be a
managed device, refer to the SNMP Software Installation Manual
(included with an SNMP Master Module) for information regarding
software installation.
Configuring SNMP Manageable Modules
Before installation, SNMP Manageable Modules may need to be
configured for various features. For information regarding configuring
SNMP Manageable Modules, refer to the manual included with the
module.
Installing an SNMP Manageable Module
To install an SNMP Manageable Module, remove the blank bracket
covering the slot where the module is to be installed by removing the
screws on the outside edges of the bracket. Slide the module into the
chassis, via the cardguides, until the module is seated securely in the
connector. Secure the module to the chassis by tightening the
thumbscrews.
Figure 2.1 Installing SNMP Manageable Modules in an SNMP Telco
Chassis (l.) and in an SNMP 6-Slot Chassis (r.)
NOTE: SNMP Manageable Modules and SNMP Telco Modules may
be safely installed or removed with power on (i.e. “hot-
swappable”).
Installing a Power Supply Module in an SNMP Media Converter
SNMP Telco Chassis and SNMP 6-Slot Chassis are shipped from the
factory with one power supply module installed. You can install a
second power supply module at a later date if required.
2.1

Power supplies are available in 90/240 VAC or -48 VDC power
versions.
If the chassis is shipped with only one power supply module, a
blank bracket covers the slot where a second power supply module
can be installed.
To install a power supply module in an SNMP Telco Chassis or
SNMP 6-Slot Chassis, remove the blank bracket covering the slot
where the module is to be installed by removing the screws located
closest to the outside edges of the bracket. Next, slide the module
into the chassis until the module is seated securely in the connector
on the backplane. Secure the module to the chassis by tightening the
thumbscrews.
Figure 2.2 Installing a Power Supply Module
Installing an Unmanaged SNMP Media Converter
An unmanaged SNMP Media Converter comes ready to install. The
only adjustments that may need to be made are configuring and
installing SNMP Manageable Modules and/or installing a second
power supply. Each SNMP Media Converter needs at least one
installed SNMP Manageable Module.
To install an unmanaged SNMP Media Converter, simply attach the
cables between the SNMP Media Converter and each device that will
be interconnected then plug the unit into a reliable, filtered power
source.
NOTE: If the SNMP Media Converter you are installing is an SNMP
Telco Chassis, the Telco cable must also be attached to the device
it will be connected to (i.e. switch, bridge, hub, etc.).
2.2

Installing a Managed SNMP Media Converter
The hardware installation for a managed SNMP Media Converter is
similar to that of an unmanaged SNMP Media Converter, except that
each managed SNMP Media Converter has to either have an SNMP
Master or Slave Module installed. Slave SNMP Media Converters must
be connected to a Master SNMP Media Converter.
To install a managed SNMP Media Converter, follow the instructions
for installing an unmanaged SNMP Media Converter, then continue as
instructed below.
Installing SNMP Master/Slave Modules
Installing SNMP Master and Slave Modules is the same. To install
an SNMP Master/Slave Module, remove the blank bracket covering
the slot where the module is to be installed (located in the front,
lower left corner of the chassis) by removing the two screws located
closest to the outside edges of the bracket. Next, slide the module
into the chassis, via the cardguides, until the module is seated
securely in the connector on the backplane. Secure the module to
the chassis by tightening the thumbscrews.
Figure 2.3 Installing an SNMP Master/Slave Module in
an SNMP Telco Chassis
Connecting Master and Slave SNMP Media Converters
As stated in the introduction, each SNMP Master Module can
manage itself and up to five additional SNMP Media Converters with
SNMP Slave Modules installed, allowing a total of up to 60 managed
conversions. Slave SNMP Media Converters can be used in any
combination with a Master SNMP Media Converter; you can have five
Slave SNMP Media Converters of the same variety or any combination
of SNMP 6-Slot Chassis and SNMP Telco Chassis.
2.3

The SNMP Master Module is connected to the LAN via an external
10Base-T hub connection. The SNMP Slave Module provides an
SNMP management uplink to the SNMP Master Module.
Once each Slave is installed, it has to be connected to the Master
SNMP Media Converter (either directly or through another Slave
connected to a Master). All Slave SNMP Media Converters must be
installed, via RS-485 connection, within 500m from the Master SNMP
Media Converter.
When powering up your series (or chain) of SNMP Media
Converters, all Slaves must be powered up before powering up the
Master.
Connecting a Master SNMP Media Converter
To connect a Master SNMP Media Converter to the network, plug
one end of a twisted pair cable into the port labeled “LAN” on the
SNMP Master Module. Plug the other end of the twisted pair cable
into a device (e.g.: switch, hub, etc.) in your existing 10 Mbps
Ethernet network.
Figure 2.4 Connecting Master and Slave SNMP Media Converters
2.4

Connecting a Slave SNMP Media Converter
Slave SNMP Media Converters are connected to a Master SNMP
Media Converter via a straight-through, twisted pair cable. Master and
Slave SNMP Media Converters communicate via an
RS-485 connection. Multiple Slave SNMP Media Converters are
connected in a daisy-chain configuration.
To connect a Slave SNMP Media Converter to the Master SNMP
Media Converter, plug one end of a twisted pair cable into the port
labeled “SLAVE” on the Master Module. Plug the other end of the
twisted pair cable into the port labeled “IN” on the Slave SNMP
Media Converter. See Figure 2.4.
If more than two Slave SNMP Media Converters are to be installed
and managed by the same Master SNMP Media Converter, plug one
end of a twisted pair cable into the port labeled “OUT” on the first
Slave SNMP Media Converter. Plug the other end of the cable into the
port labeled “IN” on the next Slave SNMP Media Converter. Follow
this procedure for each additional Slave SNMP Media Converter being
installed. See Figure 2.4.
NOTE: Slaves must be connected to a Master SNMP Media
Converter (or another Slave SNMP Media Converter connected to
a Master) or the Slave module must be removed for proper
operation.
LED Operation
SNMP Media Converters feature diagnostic LEDs. LEDs for each
port are located on the installed SNMP Manageable Modules.
Additional LEDs are located on SNMP Master and Slave Modules. The
combination of these LEDs provides information to help determine
where failures reside when they occur in your network.
NOTE: Refer to the installation guide included with the SNMP
Manageable Module for LED information.
2.5

LEDs on SNMP Master Modules
The diagram below shows the LEDs, and their locations, on an
SNMP Master Module.
Figure 2.5 SNMP Master Module
The LEDs on SNMP Master Modules function the same regardless
of the type of SNMP Manageable Modules that are installed. The LED
functions are as follows:
LNK Glows green when a link is established with the device
the Master SNMP Media Converter is connected to via
this port
FDX Glows amber when port is configured, via SNMP, for
Full-Duplex operation
RCV Glows amber when module is receiving data
XMT Glows green when module is transmitting data
PS1 Glows green when power supply One has power
PS2 Glows green when power supply Two has power
Active Units
1 - 8 These LEDs glow green when a Slave SNMP Media
Converter is connected to and being managed by a
Master SNMP Media Converter. The first of these LEDs
(1) corresponds to the Master SNMP Media Converter
and glows whether or not any Slave units are connected.
LEDs on SNMP Slave Modules
The diagram below shows the LEDs, and their locations, on an
SNMP Slave Module.
Figure 2.6 SNMP Slave Module
The LEDs on Slave Modules function the same regardless of the
2.6

type of SNMP Manageable Modules that are installed. The LED
functions are as follows:
SNMP
Active Glows amber when using SNMP
PS1 Glows green when power supply One has power
PS2 Glows green when power supply Two has power
LinkLoss and FiberAlert
Since media converters are a transparent link in a network, twisted
pair and fiber SNMP Manageable Modules feature LinkLoss. Fiber
SNMP Manageable Modules also feature FiberAlert. These two
features assist in pinpointing link faults between media conversion
products.
NOTE: Refer to the manual included with the SNMP Manageable
Module for instructions on enabling and disabling LinkLoss and
FiberAlert.
With LinkLoss enabled, when
the fiber segment has a link fault,
the fault is passed on to the
twisted pair segment (i.e. when a
fault is detected with the fiber,
the twisted pair link is dropped). Figure 2.7 LinkLoss
With FiberAlert
enabled, when a fiber
optic receive fault is
detected, the fiber
optic transmissions are
stopped and the link
LED for the opposite
end of the fiber
conversion is dropped. Figure 2.8 FiberAlert
The following two diagrams show examples of the same
application — a media conversion between fiber and twisted pair —
with and without LinkLoss and FiberAlert enabled.
As shown in Figure 2.9, neither LinkLoss nor FiberAlert are
enabled. If there is a fault detected on the receive end of the far side
fiber conversion, that is the only link that will be dropped — neither
2.7

the near side of the fiber segment nor the twisted pair segment will
be affected.
Figure 2.9 Application with LinkLoss and FiberAlert Disabled
As shown in Figure 2.10, using the same application, if LinkLoss is
enabled on the near side and FiberAlert is enabled on the far side,
the near side will be notified of any fiber link faults on the far side,
thus eliminating “silent failures.”
Figure 2.10 Application with LinkLoss and FiberAlert Enabled
Troubleshooting with LinkLoss and FiberAlert
If LinkLoss is enabled and you lose the connection between the
SNMP Media Converter and the hub/switch the SNMP Media
Converter is connected to, disable LinkLoss to assist in pinpointing
whether the fault is on the twisted pair or fiber optic segment. After
disabling LinkLoss, if the link is reestablished with the hub/switch, the
2.8

problem resides with the fiber segment. If LinkLoss is disabled and
the connection between the SNMP Media Converter and the
hub/switch is NOT reestablished, the failure resides with the twisted
pair segment. When a failure occurs, check that cables are properly
connected. You can also try using another port on the hub/switch or
another cable.
2.9

Chapter 3
Technical Specifications
Telco Cable and Connector Pinouts
Each SNMP Telco Chassis comes with one 2ft. Telco cable. If a
longer cable is necessary, a standard, 25-pair Category 3 Telco cable
may be used. When using a standard Telco cable with a right-angle
connector hood, one jackscrew on the SNMP Telco Chassis’ Telco
connector may be replaced with the included cable tie mount. The
cable tie may then be used to secure the cable to the chassis.
The following table provides the pinouts for the Telco connector.
3.1

Fiber Optic Cleaning Guidelines
Fiber Optic transmitters and receivers are extremely susceptible to
contamination by particles of dirt or dust, which can obstruct the
optic path and cause performance degradation. Good system
performance requires clean optics and connector ferrules.
1) Use fiber patch cords (or connectors, if you terminate your own
fiber) only from a reputable supplier; low quality components can
cause many hard-to-diagnose problems in an installation.
2) Dust caps are installed at the factory to ensure factory-clean
optical devices. These protective caps should not be removed
until the moment of connecting the fiber cable to the device.
Assure that the fiber is properly terminated, polished and free of
any dust or dirt and that the location is as free from dust and dirt
as possible.
3) Store spare caps in a dust free environment such as a sealed
plastic bag or box so that when reinstalled they do not introduce
any contamination to the optics.
4) Should it be necessary to disconnect the fiber device, reinstall the
protective dust caps.
5) If you suspect that the optics have been contaminated, alternate
between blasting with clean dry compressed air and flushing with
methanol to remove particles of dirt.
Electrostatic Discharge Precautions
Electrostatic discharge (ESD) can cause damage to your add-in
modules. Always observe the following precautions when installing or
handling an add-in module or any board assembly.
1) Do not remove unit from its protective packaging until you are
ready to install it.
2) Wear an ESD wrist grounding strap before handling any module
or component. If you do not have a wrist strap, maintain
grounded contact with the system unit throughout any procedure
requiring ESD protection.
WARNING! Integrated circuits and fiber optic components are
extremely susceptible to electrostatic discharge damage. Do not
handle these components directly unless you are a qualified service
technician and use tools and techniques that conform to accepted
industry practices.
3.2