96 APPENDIX A: SAFETY INFORMATIONtransformer ratio 1:1, with the secondary connection point labelledNeutral, connected directly to earth (ground).† Impédance à la terre.WARNING: U.K. only:If connecting a modem to the console port of the Switch 4500, only use amodem which is suitable for connection to the telecommunicationssystem.WARNING: RJ-45 Ports. These are shielded RJ-45 data sockets. They cannotbe used as standard traditional telephone sockets, or to connect the unit to atraditional PBX or public telephone network. Only connect RJ-45 dataconnectors, network telephony systems, or network telephones to thesesockets.Either shielded or unshielded data cables with shielded or unshieldedjacks can be connected to these data sockets.WARNING: Fiber Optic ports – Optical SafetyNever look at the transmit laser while it is powered on. Never look directlyat the fiber TX port and fiber cable ends when they are powered on.WARNING: This device has more than one power input. Disconnect allpower inputs to power off this device.WARNING: The installation of the Redundant Power Supply (RPS) shouldonly be carried out by properly trained and qualified personnel.WARNING: These instructions must be read in conjunction with the RPSflyer and the safety and installation instructions supplied with your RPS.WARNING: When powering any Switch 4500 from an RPS, the unit mustbe earthed (grounded). This can be achieved by either connecting thepower cord to the unit or by connecting the earth terminal on the rear ofthe unit to a reliable electrical earth, or by connecting both. It must beensured that the earth connection is made before connecting the DCsupply from the RPS.Class 1LASER PRODUCT
