Cisco 7600 SIP 200 Hardware Installation Guide - Page 136

Laser/LED Safety Chapter 4 Preparing to Install a SIP or a Shared Port Adapter • Avoid contact between the printed circuit boards and clothing. The wrist strap only protects components from ESD voltages on the body; ESD voltages on clothing can still cause damage. • Never attempt to remove the printed circuit board from the metal carrier. Caution For safety, periodically check the resistance value of the antistatic strap. The measurement should be between 1 and 10 megohms (Mohms). Laser/LED Safety An optical single-mode transmitter uses a small laser to transmit the light signal to the network ring. Keep the transmit port covered whenever a cable is not connected to it. Although multimode transceivers typically use LEDs for transmission, it is good practice to keep open ports covered and avoid staring into open ports or apertures. The single-mode aperture port contains a laser warning label, as shown in Figure 4-1. The multimode aperture contains a Class 1 LED warning label, as shown in Figure 4-1. These warnings apply to SPAs and SFP modules that transmit signals via an optical carrier signal. Figure 4-1 Class 1 Laser Warning Labels for Single-Mode Port CLASS 1 LASER PRODUCT LASERPRODUKT DER KLASSE 1 H6655 PRODUIT LASER DE CLASSE 1 1 PRODUCTO LASER CLASE 1 Warning Class 1 laser product. Statement 1008 Warning Invisible laser radiation may be emitted from disconnected fibers or connectors. Do not stare into beams or view directly with optical instruments. Statement 1051 Waarschuwing Losgekoppelde of losgeraakte glasvezels of aansluitingen kunnen onzichtbare laserstraling produceren. Kijk niet rechtstreeks in de straling en gebruik geen optische instrumenten rond deze glasvezels of aansluitingen. Varoitus Irrotetuista kuiduista tai liittimistä voi tulla näkymätöntä lasersäteilyä. Älä tuijota säteitä tai katso niitä suoraan optisilla välineillä. Attention Les fibres ou connecteurs débranchés risquent d'émettre des rayonnements laser invisibles à l'œil. Ne regardez jamais directement les faisceaux laser à l'œil nu, ni d'ailleurs avec des instruments optiques. Warnung Unterbrochene Fasern oder Steckerverbindungenkönnen unsichtbare Laserstrahlung abgeben. Blicken Sie weder mit bloßem Auge noch mit optischen Instrumenten direkt in Laserstrahlen. Avvertenza Le fibre ottiche ed i relativi connettori possono emettere radiazioni laser. I fasci di luce non devono mai essere osservati direttamente o attraverso strumenti ottici. Cisco 7600 Series Router SIP, SSC, and SPA Hardware Installation Guide 4-8 OL-5052-14