Avaya Ethernet Routing Switch 8300 Series Quick Start Manual page 23

Do not operate the Ethernet Routing Switch 8300 with an empty module slot. If you need to
replace a failed module and you do not have a replacement module, leave the failed module
installed or install a filler panel.
Operating the switch with an empty module slot can cause electromagnetic interference to
other equipment in the area. Improper equipment cooling can also result.
Modules safety
Follow these general practices to prevent equipment damage when working on the Ethernet
Routing Switch 8300 series:
• Always wear an antistatic wrist strap connected to an Electrostatic discharge (ESD)
grounding jack when handling modules.
• Always set modules on appropriate antistatic material.
• Handle modules by the faceplate. Do not touch pins or electrical connections.
• Do not leave slots open. All slots must be filled with modules or, if empty, covered with
slot covers to maintain safety compliance, proper cooling, and EMI containment in the
shelf.
• Ensure that your environment meets the necessary requirements for temperature,
humidity, and cleanliness.
• Do not overtighten thumb screws or lug nuts. Tighten until snug plus a quarter turn. If you
use a power tool to tighten screws, use a low torque setting (2 to 3 inches per pound [in/
lbs]).
For additional information about installing modules, see Avaya Ethernet Routing Switch 8300
Installation — Modules, NN46200-305.
Cables and connectors safety
Use the following instructions to safeguard cables and connectors while working with the
Ethernet Routing Switch 8300:
• Support cables to prevent any stress on the connectors. If you have a high cable density
configuration, you need to install additional cable-management equipment.
• Do not exceed the bend radius recommended for the type of cable installed.
• Do not exceed the bend radius recommended for fiber optic cable. The acceptable bend
radius for fiber optic cable is ten times its diameter, or 2.5 to 5 cm (1 to 2 in.). Anything
less than the recommendation can cause a loss of integrity of data transmission. Loss of
integrity because of incorrect bend radius is difficult to diagnose.
• Fiber optic cables and connectors require special care:
- Protect connectors with rubber safety plugs when cables are not inserted.
Quick Start
Safety precautions
May 2011 23