GE ML1200 instruction manual Twisted Pair CAT 3, 4

CHAPTER 3: INSTALLATION INSTALLATION

3.2.0.2 Connecting Fiber Optic SC-type, "Snap-In"

The following procedure applies to installations using a PM with SC-type fiber connectors, i.e., using C9 Module, CA Module single-mode:

When connecting fiber media to SC connectors, simply snap on the two square male connectors into the SC female jacks of the PM, until it clicks and secures.

3.2.0.3 Connecting Single-Mode Fiber Optic

When using single-mode fiber cable, be sure to use single-mode fiber port connectors. Single-mode fiber cable has a smaller diameter than multi-mode fiber cable (9/125 microns for single-mode, 50/125 or 62.5/125 microns for multi-mode where xx/xx are the diameters of the core and the core plus the cladding respectively). Single-mode fiber allows full bandwidth at longer distances, and may be used to connect 10 Mb nodes up to 10 Km apart, or 18Km with the ML1200.

The same procedures as for multi-mode fiber, applies to single-mode fiber connectors.

3.2.0.4 Connecting Twisted Pair (CAT3, CAT5, Unshielded or Shielded)

The RJ-45 ports of the Multilink ML1200 can be connected to the following two media types: 100BASE-TX and 10BASE-T. CAT 5 cables should be used when making 100BASE-TX connections. When the ports are used as 10BASE-T ports, CAT 3 may be used. In either case, the maximum distance for unshielded twisted pair cabling is 100 meters (328 ft).

Media	IEEE Standard	Connector
Twisted Pair (CAT 3, 4, 5)	10BASE-T	RJ-45
Twisted Pair (CAT 5)	100BASE-TX	RJ-45

It is recommended that high quality CAT. 5 cable be used whenever possible in order to provide flexibility in a mixed-speed network, since 10/100 copper switched ports are auto- sensing for either 10 and 100Mb/s.

The following procedure describes how to connect a 10BASE-T or 100BASE-TX twisted pair segment to the RJ-45 port. The procedure is the same for both unshielded and shielded twisted pair cables.

1.Using standard twisted pair media, 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

For Power Substations: In support of the IEEE 1613 Class 2 standard, GE Multilin advises that, for substation applications, the RJ-45 ports are intended for connectivity to other communication equipment such as routers or telecommunication multiplexers installed in close proximity (i.e., less than 2 meters or 6.5ft) to the ML1200. It is not recommended to use these ports in substation applications to interface to field devices across distances which could produce kigh (greater than 2500V ) levels of ground potential rise (GPR) during line-to-ground fault conditions. The ML1200 passes the 1613specifications for zero packet loss with fiber ports & with RJ-45 ports used as indicated here.

MULTILINK ML1200 MANAGED FIELD SWITCH – INSTRUCTION MANUAL 3–3