Wednesday, January 28, 2015

How to Installing or Removing Transceiver Modules (Part I)

After learning more about a variety basic or conclusive knowledge of transceiver modules these days, I believe you must have a new understanding or a deeper perception on the transceiver modules. In fact, that's just a tip of iceberg. My blog will continue to bring more information about the fiber optic transceiver modules, such as SFP transceiver, fibre SFP module 10G, XFP and so on. Also the other knowledge of fiber optic communication, network, telecom etc. to all of my friends who like this field and like my blog. Since we discuss so much about the theories of the transceiver modules, today, I prefer to talk about something practicle, for instance, some knowledge about installing or removing different kinds of transceiver modules.

As we know, the commonly used transceivers include the following 8 types:SFP Ethernet

  • GBIC (Gigabit interface converter)
  • SFP (small form-factor pluggable)
  • SFP+
  • XENPAK
  • X2
  • XFP
  • QSFP/QSFP+ (Quad Small Form-factor Pluggable Plus (QSFP+) )
  • CFP (C Form-Factor Pluggable)

The following content will cover the knowledge of installing or removing for these types of transceiver modules, namely today's main topic. But first of all, I want to talk about some preparations and considerations before starting the main topic.

What equipment should we need to install a transceiver module?

When installing a transceiver module, some tools you should need in order to make your installation go well. The following is a list of such tools which are recommended:

  • A Wrist strap or similar personal grounding device designed to stop ESD occurrences.
  • An Antistatic mat or similar which the transceiver can be placed on.
  • Fibre-optic end-face cleaning tools and inspection equipment.
  • A flat head screw driver is require to install a XENPAK transceiver module.

What should we need to know before or during installing or removing a transceiver module?

In order to ensure the safety and avoid leading the unnecessary losses, there are some items which we should consider before and during installing and removing the transceiver modules.

  • To preventing the cables, connectors, and the optical interfaces from damage. We must disconnect all cables before removing or installing a transceiver module.
  • Please be aware that the regular removal and installation a transceiver module can shorten its useful life. Thus, transceivers should not be removed or inserted more often than is required.
  • Transceiver modules are sensitive to static, so always ensure that you use an ESD wrist strap or comparable grounding device during both installation and removal.
  • Do not remove the dust plug from the transceiver slot if you are not installing the transceiver at this time. Similarly, we must use the dust plug to protect the optical bore if we don’t use the transceivers.

How to Install or Remove Transceiver Modules

1. How to Install or Remove GBIC Transceiver Module

GBIC Installing Steps

step 1: Firstly you should attach your ESD preventive wrist strap to your wrist to prevent ESD occurrences.

step 2: Remove the GBIC transceiver from its protective packaging.

step 3: Verify that the GBIC transceiver module is the correct model for the intended network.

step 4: Using your thumb and forefinger, grip the sides of the GBIC transceiver and carefully align it with the GBIC socket opening on the device.

step 5: You can now carefully insert the GBIC transceiver module through the socket flap and slide it into the GBIC socket. A click will be heard once the GBIC is locked into the socket. Please ensure that the GBIC is inserted carefully straight into the socket.

(Please note: you should keep the protective dust plugs in place until making a connection. You should also inspect and clean the SC connector end faces immediately prior to making a connection.)

step 6: The dust plugs from the network interface cable SC connectors can now be removed, ensuring that these are saved for later use.

step 7: Next, inspect and clean the SC connector’s fiber optic end faces.

step 8: Remove the dust plugs from the optical bores on the GBIC transceiver module.

step 9: You can now attach the network interface cable SC connector to the GBIC.

GBIC Removing Steps

Please be aware that GBIC transceiver modules are static sensitive so you should always use an ESD wrist strap or similar grounding device when coming into contact with the device. Transceiver modules can also reach high temperatures so may be too hot to be removed with bare hands.

step 1: Disconnect the cable from the GBIC connector.

step 2: Release the GBIC from the slot by pressing the two plastic tabs located on either side of the GBIC (They must be pressed at the same time).

step 3: Once released carefully slide the GBIC straight out of its module slot.

step 4: The GBIC transceiver module should now be placed safely into an antistatic bag.

Warm Tips

About How to Install or Remove SFP transceiver and orther Module will be continued next paper. Please focus on my blog entries: Fiber Optic Transceiver Installing Steps.

Monday, January 5, 2015

Cisco Switch Controllers Accepted these SFP Modules

A distribution system port connects the controller to a neighbor switch and is used as the data path between these two devices. This paper talk about a few common methods on the models that have these options.

Cisco 4402 controllers have two Gigabit Ethernet distribution system ports, each of which is capable of managing up to 48 access points (AP). Cisco 4404 controllers have four Gigabit Ethernet distribution system ports, each of which is capable of managing up to 48 APs per port. The 4404-25, 4404-50, and 4404-100 models allow a total of 25, 50, or 100 APs to join the controller. The Gigabit Ethernet ports on the 4402 and 4404 controllers accept these SX/LC/T small form-factor plug-in (SFP) modules:

  • 1000BASE-SX SFP modules, which provide a 1000-Mbps wired connection to a network through an 850nm (SX) fiber-optic link using an LC physical connector
  • 1000BASE-LX/LH SFP modules, which provide a 1000-Mbps wired connection to a network through a 1300nm (LX/LH) fiber-optic link using an LC physical connector
  • 1000BASE-T SFP transceiver modules, which provide a 1000-Mbps wired connection to a network through a copper link using an RJ-45 physical connector

1000BASE-T SFP module

The Cisco 5508 controllers have eight Gigabit Ethernet distribution system ports through which the controller can manage multiple APs. The 5508-12, 5508-25, 5508-50, 5508-100, and 5508-250 models allow for 12, 25, 50, 100, or 250 APs to join the controller. Cisco 5508 controllers have no restrictions on the number of APs per port. However, Cisco recommends using link aggregation (LAG) or configuring dynamic AP-Manager interfaces on each Gigabit Ethernet port to automatically balance the load. If more than 100 APs are connected to the 5500 series controller, make sure that more than one Gigabit Ethernet interface is connected to the upstream switch. The Gigabit Ethernet ports on the 5508 series controller, make sure that more than one Gigabit Ethernet interface is connected to the upstream switch. The Gigabit Ethernet ports on the 5508 controllers accept these SX/LC/T small-factor plug-in (SFP) modules:

  • 1000BASE-SX SFP modules, which provide a 1000-Mbps wired connection to a network through an 850nm (SX) fiber-optic link using an LC physical connector
  • 1000BASE-LX SFP modules, which provide a 1000-Mbps wired connection to a network through a 1300nm (LX/LH) fiber-optic link using an LC physical connector
  • 1000BASE-T SFP modules, which provide a 1000-Mbps wired connection to a network through a copper link using an RJ-45 physical connector

The Cisco Catalyst 6500 Series Gigabit Ethernet interface module is a premier modular multilayer switch and delivers secure converged services from the wiring closet to the core, to the data center, to the WAN edge. Designed to complement the many roles that the Cisco Catalyst 6500 Series plays in a network, Cisco Catalyst 6500 Series mixed media Gigabit Ethernet modules offer the broadest selection of media, densities, performance, interoperability, and chassis deployments for enterprises and service providers. The Cisco Catalyst 6500 Series Gigabit Ethernet Interface Module accept these SX, LX/LH, ZX and CWDM/DWDM SFP modules:

  • GLC-SX-MMD SFP, 1000BASE-SX SFP (multimode only) Dual LC connector
  • GLC-ZX-SMD SFP, 1000BASE-ZX SFP (single mode only) Dual LC connector
  • GLC-LH-SMD SFP, 1000BASE-LX SFP (single mode only) Dual LC connector
  • GLC-T SFP Copper transceiver, 1000BASE-T SFP (copper twisted pair) RJ-45 connector
  • CWDM-SFP-1470=*, Cisco CWDM SFP 1470 nm; Gigabit Ethernet and 1G/2G FC
  • DWDM-GBIC-60.61***, 1000BASE-DWDM 1560.61 Nm GBIC (100 GHz ITU grid)

Article Source: Cisco Switch Controllers Accepted these SFP Modules