ProSwitch Quad-Series Fiber Switches
Installation and User Guide
Page 12
the cladding respectively). Singlemode fiber allows full bandwidth at longer distances, and may be used
to connect 10Mbps nodes up to 10km apart, or 18km with the QPM-SSC.
The same procedures for multimode fiber applies also to singlemode fiber connectors. Follow
the steps listed in Section 3.2.2 above.
3.2.4 Connecting Twisted Pair (RJ45,CAT3, CAT5, Unshielded or Shielded)
The RJ45 ports of the ProSwitch Quad-Series 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
RJ45
Twisted Pair (CAT 5)
100BASE-TX
RJ45
NOTE :
It is recommended that high quality CAT. 5 cables (which work for both 10Mbps and 100Mbps)
be used whenever possible in order to provide flexibility in a mixed-speed network, since dual-
speed ports are auto-sensing for either 10 and 100Mbps.
The following procedure describes how to connect a 10BASE-T or 100BASE-TX twisted pair
segment to the RJ45 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 RJ45 plug into the RJ45
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
3.3
Table-Top or Shelf Mounting
The
ProSwitch Quad-Series switches can be easily mounted on a tabletop or any suitable
horizontal surface, and has four rubber feet to provide stability without scratching finished surfaces.
3.3.1 Wall (or Vertical Surface) Mounting, 8-port ProSwitch-QS580
Each ProSwitch-QS580 switch is shipped with two metal mounting brackets (and screws) to allow
the unit to be mounted in nearly any desired orientation or position. The brackets are attached to the
metal hub case using one of the metal screws for each bracket, and attached to the ProSwitch-QS580
through the round hole of the bracket. A user-supplied screw attaches the bracket to the mounting
surface. It is recommended that the mounting brackets be attached to two opposite corners of the unit.
When properly attached, the brackets will extend slightly below the base of the unit to allow clearance for
the rubber feet and for cooling fan exhaust space.
Installation of a ProSwitch QS5108 and QS5116 Mixed-Media Fiber switch in a 19” rack is a
simple procedure. The units are 1U (1.75”) high. When properly installed, the front-mounted LED status
indicators should be in plain view and easy to read. Rack-mount installation requires special rack-
mounted brackets and screws (included with each QS5108 and QS5116 unit). The brackets attach to the
front sides of the switch, which is then fastened into a standard 19” rack.
ProSwitch Quad-Series Fiber Switches
Installation and User Guide
Page 13
3.4
RJ45 ports, internal jumper settings for 10/100Mbps (auto-negotiation) or for fixed Half- or
Full-Duplex @ 100Mbps, per port
The factory (or default) setting is for auto-negotiation on all RJ45 ports, which is generally
popular. It works well under most circumstances, but cannot always be depended upon to work as
expected. If auto-negotiation will not function properly in your setup, internal jumpers allow the speed and
mode of the Q-Series RJ45 (copper)
quad-ports to be fixed, even if the
attached device may or may not
support auto-negotiation. This is
desirable when there are unknown
devices presently or potentially
connected, which will not operate
correctly with auto-negotiation.
Examples include some NICs and most
Media Converters.
Therefore, the default setting
of auto-negotiation (copper ports) is
generally desirable because it is widely
used and allows for the connection of
various devices without re-
configuration. Under certain
conditions,(where the connected
device is full duplex and does not
support Auto-negotiation; or the
connected device does not support
Auto-negotiation properly) no auto-
negotiation is better and the internal
jumper settings will permit this to be
selected on a per-port basis.
See Section 4.4 for additional
information on auto-negotiation functionality.
Figure
3.4.
RJ45 ports, internal jumper settings.
Note:
Be certain that the main power is disconnected before opening the unit or changing any internal
jumper settings.
3.5 Fiber 100Mbps ports, internal jumper settings for 100Mbps fixed Half- or Full-Duplex, per port
The factory (default) setting is for full duplex on all fiber 100Mbps ports, which is generally popular. FDX
works well under most circumstances, but cannot always be depended upon to work as expected. If full
duplex on 100Mbps will not function properly in your setup, internal jumpers allow the speed and mode of
the Q-Series fiber quad- ports to be fixed, even if the attached device may or may not support full duplex.
This is desirable when there are unknown devices presently or potentially connected, which will
not operate correctly with full-duplex. Examples include hubs that support only half-duplex by default.
Therefore, the default setting of full-duplex (fiber ports) is generally desirable because it is widely
used and allows for the connection of various devices without re-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.
1
AUTO
10/100 Mbps
Auto Negotiation
100 Mb
J4
Bottom QPM Retaining
Jumper Settings for HDX/FDX
and Auto Negotiation
Two(50) Pin
QPM Connectors
(inserts into main board
)
Printed Circuit card
FRONT
TOP
LED
Uplink
Switch
100 Mb
10/100 Mb
Factory Settings
100Mbps Full
Duplex
100Mbps Half
Duplex
Jumper Settings for Auto-Negotiation, or for 100MB Half or Full Duplex
Jumper
Port
Function
Factory Settings
Speed
JP1-2, 6-7, 9-10
Pin 2-3,6-7,10-11
FDX @100 config
100 Mb
JP2-3,6-7, 10-11
Pin 1-2, 6-7, 9-10
HDX@100 config
NO
10/100 Mb,
NO
JP1-2, 7-8, 11-12
Pin 1-2, 7-8, 11-12
Auto-Negotiation
YES
100 Mb
J1
5 6 7 8
9 10 11 12
J1
1 2 3
J1
1 2 3
J1
4
4
1 2 3 4
1 2 3 4
J1 J2 J3
