3Com 6040 Installation Manual

Also see for Router 6040: Supplementary guide Release note Quick reference guide Specifications Datasheet

Contents

3Com 6040 Installation Manual Manual pdf 18 page image

3Com Router 6000 FamilyInstallation ManualChapter 2Preparing for Installation3Com Corporation2-32.1.5 Lightning ProtectionBy design, the router is lightning protective; but excessive lightning may still damage thedevice. To protect the device better, you are recommended to:z Ensure the PGND of the chassis is securely connected to the earth ground.z Ensure the earth point of the power socket is securely connected to the earthground.z Add a lightning arrester onto the front end of the power input to better protect thepower supply from lightning strikes.z For signal cables such as ISDN cables, telephone cables, E1/T1 cables, install aspecial lightning arrester at their input end for better protection.2.1.6 Checking the RackWhen installing the router, observe the following:z Reserve adequate clearance at the air intake exhausting vents for adequateventilation inside the chassis.z Make sure that the rack has a good ventilation system.z Make sure that the rack is sturdy enough to support the weight of the device andthe installation accessories.z Make sure that the rack is well-grounded.2.2 Safety PrecautionsWhen reading this manual, pay adequate attention to the following.Warning appears in operation procedures that, if performed incorrectly, might causebodily injury to the operators or damage the device.Caution appears throughout this manual in procedures that, if performed incorrectly,might affect the operation of the router.When installing or working on the router, you are recommended to:z Keep the router far away from the heat sources and water/liquid.z Make sure that the router has been correctly grounded.z Wear an ESD-preventive wrist strap in installation and maintenance, makingsure that the strap has good skin contact.z Do not hot swap the main control board of the router.z Correctly connect the ports. Above all, do not insert a telephone cable (or ISDNcable) into a serial port.z Use laser cautions. Do not directly stare into apertures or fiber-optic connectorsthat emit laser radiation.