GarrettCom 1016 Magnum 1000 Workgroup Hubs, Installation and User Guide 04/02, Magnum RPM-TP

Shielded RJ-45

Connector

MDI-X

Cross-Over

Slide Switch

Magnum 1000 Workgroup Hubs	Installation and User Guide (04/02)
2.4.7 RPM-TP (Twisted Pair)

The Magnum RPM-TP card supports Ethernet twisted pair segments of any standard length. It is equipped with a single RJ-45 connector. The RJ-45 connector is shielded to minimize emissions and will allow both unshielded twisted pair (UTP) and shielded twisted pair (STP)

segment connections.

The RPM-TP module is also equipped with a slide switch to allow for cascaded or up-link connections. This feature eliminates the need for a

special twisted pair crossover cable.

1

2

3

1 LINK 2 Partition 3 Receive

Magnum RPM-TP

With the switch in the UP position, the RPM-TP port is used for up-link connections (i.e.: a connection to another repeater or hub typically.) When used for segments going to workstations and other user device connections, the switch should be in the DOWN position. Proper switch position can be verified by noting that the port’s LINK LED will illuminate when proper link is established.

The RPM-TP will support 10BASE-T unshielded twisted pair wiring (UTP) environments with maximum segment distances up to 100m (325 ft.), or shielded twisted pair wiring (STP) of 150m (500 ft.). This module is designed with internal transceiver functionality. The RPM-TP has LINK, PART (inoperative on Model 1000 Hubs), and RX LEDs.

Important Note: For the RPM-TPMDI-X Crossover Switch - DOWN(or Right) for workstations and user connections. UP (or Left) for Up-Link connections to other hubs, etc.

The RJ-45 pins normally (TP crossover switch DOWN) are per the standard for hubs-to- users twisted pair wiring: 1 = receive+, 2 = receive-, 3 = transmit+, 6 = transmit-, other pins not used. When the TP crossover switch is UP, the pins of the RJ-45 port are per the standard for up-links using twisted pair wiring, i.e., the transmit and the receive pairs are exchanged: 1 = transmit+, 2 = transmit-, 3 = receive+, 6 = receive-, other pins not used.

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