The Laser Safety And Warning With Cisco SFP Modules

Cisco SFP is also hot plugable, this make it easy to change and easy for maintenance compared with traditional modules. SFP fiber transceiver modules make the fiber optic network or fiber-Ethernet network easier to upgrade or maintain, users can replace a single SFP module during the process instead of replace the whole board with many modules on it.

SFP(Small form-factor pluggable) is a compact optical transceiver used in optical communications for both telecommunication and data communications applications. Cisco Transceiver Modules support Ethernet, Sonet/SDH and Fibre Channel applications across all Cisco switching and routing platforms. Cisco pluggable transceivers offer a convenient and cost effective solution for the adoption in data center, campus, metropolitan area access and ring networks, and storage area networks. Cisco portfolio of hot pluggable interfaces offers a rich set of choices in terms of speeds, protocols, reaches and supported transmission media.

Cisco SFP can be regarded as the upgrade version gbic module, SFP is short for Small Form-factor Pluggables, unlike GBIC with SC fiber optic interfaces is with LC interface and the main body size of SFP is only about half of GBIC, which makes SFP space saving. Signal transmitting rate of these modules range from 100Mbps up to 4Gbps or more, working distance of these SFP transceiver modules can be from 500 meters to 100 kilo meters, working wavelength of different SFP modules are typically 850nm, 1310nm and 1550nm, there are also CWDM type SFP transceivers available.

Laser Safety

Before you install SFP modules in a Cisco device or attempt to operate or service a Cisco device equipped with SFP modules, you must read and observe the important safety information in this article. Refer to the Regulatory Compliance and Safety Information publication or the Site Preparation and Safety Guide that supports your Cisco device for the complete list of translated safety warnings and agency approvals that apply to your Cisco device.

The Cisco SFP Transceiver Modules are equipped with a Class 1 Laser, which emits invisible radiation. Do not stare into open optical ports. These warnings apply to the cisco sfp modules.

  • 1,Class 1 laser product.
  • 2,Because invisible laser radiation can be emitted from the aperture of the port when no fiber is connected, avoid exposure to laser radiation and do not stare into open apertures.
  • 3,Laser radiation is present when the system is open and interlocks bypassed.
  • 4,Only trained and qualified personnel should be allowed to install, replace, or service this equipment.

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