GarrettCom Quad User Manual

Page 47

Magnum Quad-Series Fiber Switches

Installation and User Guide (06/09)

www GarrettCom com

Important Note: For the QPM-RJ45 Crossover Push-button -

OUT for workstations and user node connections.

IN for Up-Link connections to other hubs, switches, etc.

The RJ-45 pins normally (TP crossover push-button 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 push-button 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.

5.2.7

QPRJ-MSC, “3 + 1” 3@10/100Mb RJ-45 and 1@100Mb Fiber SC
Multi-mode Connector, “Combo” Quad-Port Module

The QPRJ-MSC “3+1

Combo” quad-port supports three auto-

negotiating twisted pair ports at

10/100Mbps FDX / HDX, and one fiber

port with 100Mbps multi-mode FX SC

connector. The three RJ-45 ports on the

right operate the same as those in the

same place on the QPM-RJ45 module.

The fiber SC connector

functions as a fiber optic transceiver to support 100BASE-FX network segments. When

installed in a Quad-Series Fiber Switch, it supports fiber cable distances up the IEEE-

standard 100Mbps distance limits, i.e., typically 2km at full-duplex and 412m at half-

duplex. The factory default setting is for full-duplex operation, and a jumper on the

module must be moved to select half-duplex. (See Section 3.4).

Each 3+1 combo port has an Activity (ACT) LED indicating packets being

received, a Link (LK) LED that indicates proper connectivity with the remote device

when lit, a FDX/HDX LED to indicate full-duplex mode when lit (or half-duplex when

off). In addition, the RJ-45 ports have a “speed” LED indicating 100Mb when lit (or 10

Mbps when off). The fiber port is always 100Mbps speed.

5.2.8

QPRJ-MST, “3 + 1” 3@10/100Mb RJ-45 and 1@100Mb Fiber ST
Multi-mode Connector, “Combo” Quad-Port Module

The Magnum QPRJ-MST is also a 3+1 Combo quad-port. It is the same as the

QPRJ-MSC “3+1 combo” module except the multi-mode fiber port is ST-type. See

Section 5.2.1 for a description of the 100Mb multi-mode-mode fiber SC-type port.

10/100BASE-T and 100BASE-FX Combo

Quad-Port Connectors

FULL/HALF
DUPLEX (RJ-45)

ACTIVITY

LINK

SPEED

HDX/FDX

FULL/HALF DUPLEX(FIBER)

100/10

FDX/HDX

ACT

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