GarrettCom Quad - Manual (Page 29)

Magnum Quad-Series Fiber Switches Installation and User Guide (06/09)
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configuration(specially along with switches). Under certain conditions,(where the
connected device is half duplex and does not support full-duplex; or the connected device
does not support full-duplex properly) no full-duplex is better and the internal jumper
settings will permit this to be selected on a per-port basis.
3.6 Combo(3+1) ports, internal jumper settings for 10/100 RJ-45 Auto-
Negotiation or 100Mb fiber fixed Half- or Full-Duplex , per port
Figure 3.6 Combo ports, RJ-45 and Fiber internal jumper settings.
Note: Be certain that the main power is disconnected before opening the unit or
changing any internal jumper settings
The factory (default) setting is Auto-Negotiation on all RJ-45 ports and full-
duplex on fiber 100Mbps ports, which is generally popular. Auto-Negotiation on RJ-45
and FDX on fiber port works well under most circumstances, but cannot always be
depended upon to work as expected. If full-duplex will not function properly in your
setup, internal jumpers allow the speed and mode of the Q-Series Combo- quad ports to
be fixed, even if the attached device may or may not support full-duplex. This is
)
2
3
1
4
1
J4
Bottom QPM Retaining
Jumper Settings for HDX/FDX
Two(50) Pin
QPM Connectors
(inserts into main board )
Printed Circuit card
TOP
LED
100 Mb
Factory Settings
100Mbps Full
Duplex
100Mbps Half
Duplex
Jumper Settings for 10/100Mbps RJ-45 Auto-Negotiation, 100Mbps Fiber Half or Full Duplex
Jumper Port Function Factory Settings Speed
JP1-2, 6-7, 9-10 FDX @100 config 100 Mb(Fiber) Pin 1-2, 6-7, 9-10
HDX@100 config NO
YES
JP1-2, 7-8, 11-12 Pin 1-2, 7-8, 11-12 100 Mb(Fiber)
J1
5 6 7 8
9 10 11 12
1 2 3
J1
4 4
1 2 3 4
J1 J2 J3
100 Mb
1 2 3
J1
AUTO
10/100 Mbps
Auto Negotiation
10/100 Mb
J1
1 2 3 4
For RJ-45 ports only
For RJ-45 &
Fiber port For RJ-45 &
Fiber port
JP2 -3, 6-7, 10-11 Pin 2-3, 6-7, 10-11 Auto-Negotiation YES 10/100 Mb(RJ-45)