GE ML1200 Switch User Manual

INSTALLATION CHAPTER 3: INSTALLATION Connecting Twisted Pair (CAT5e or better, Unshielded or Shielded)
The RJ-45 Gigabit ports of the Multilink ML1200 can be connected to the media types,
1000BASE-T or CAT 5E or better 100-ohm UTP or shielded twisted pair (STP) balanced cable.
The CAT 5E or better 100-ohm UTP or shielded twisted pair (STP) balanced cable is
recommended to use when making 1000BASE-TX connections. In either case, the max
distance for unshielded twisted pair cabling is 100 meters (328 ft).
The following procedure describes how to connect a 1000BASE-T twisted pair segment to
the RJ-45 port. The procedure is the same for both unshielded and shielded twisted pair
1. 1000BASE-T connections require that all four pairs or wires be connected.
Insert either end of the cable with an RJ-45 plug into the RJ-45 connector of
the port. Note that, even though the connector is shielded, either unshielded
or shielded cables and wiring may be used.
2. Connect the other end of the cable to the corresponding device
3. Use the LINK LED to ensure proper connectivity by noting that the LED will be
illuminated when the unit is powered and proper connection is established Gigabit SFP (Small Form-factor Pluggable) Optical Transceivers
The small form-factor pluggable (SFP) is a compact optical transceiver used in optical
communications for both telecommunication and data communications applications. Due
to its compact, hot pluggable characteristics, SFPs are becoming a very popular choice for
various applications. The small-chassis Multilink ML1200 is designed for industry-standard
Gb-SFPs and Gb-SFPCU (copper) for user selection of the SFP gigabit media type as
All SFPs used in Multilink ML1200s are compliant with the industry standard Multi-Source
Agreement (MSA) ensuring compatibility with a wide range of networking kit.
It is highly recommended to remove the fiber cable first before removing the SFP
transceiver for any reason. Not removing the fiber cable first can damage the fiber cable,
cable connector or optical interfaces. It is advised not to remove and insert a SFP
transceiver frequently as this may shorten its useful life.
Always use an ESD wrist strap while handling the SFP transceivers since the SFP modules
are static sensitive devices.
The copper 1000BASE-T SFP transceiver port supports 1000Mb only. It is recommended to
use a straight-through RJ-45(4-twisted pair) connection while connecting to any Server/
workstation. While connecting with any Switch/repeater or other device, it is
recommended to use Crossover RJ-45 (4-twisted pair) category 5 or higher cabling. The
maximum length supported on copper 1000BASE-T is 100mts (328 ft.).
The various SFPs transceivers supported by the GE Multilin ML1200’s C slot are:
Media IEEE Standard Connector
Twisted Pair (CAT 5e) 1000BASE-T RJ-45