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Caution: Be careful not to disturb the power supply.
Looking down into the ProSwitch Q-
Series unit, notice that there are individual
QPM connector sockets along with two stand-
offs for each QPM card position. There are four
QPM slots located on the front of the QS5116
model, whereas QS580 and QS5108 have two
Cooling Fan
QPM slots in the front. (See Figure 3.9.1b).
Figure 3.9.1b: ProSwitch QS5116, Top View
LED Status Slot
with Chassis Cover
Step 3 Remove bottom-front and modules rear top Retaining Screws in any QPM or Face Plates
On the bottom-front of the unit, there are two retaining screws for each QPM card slot as well as
two other retaining screws on the rear top of the module. These four screws are used to secure a QPM
faceplate in position. These screws are also used to secure the individual QPM cards, which can be
subjected to significant forces from the attached cables. (See Figure 3.9.1c)
3.9.2
Installing QPM Cards in the ProSwitch Q-Series
Up to four front-mounted QPM cards may be installed in one ProSwitch-5116 Fiber Hub unit.
Follow these steps to install a QPM.
Step 1 Remove top chassis cover. See procedure in Section 3.9.1 above.
Step 2 Screw down tightly the two 7/16 standoff on the top of pre installed standoff from the factory.
Step 3 Align the two headers pin on the top of the two sets of socket fixed at the bottom side of the QPM
module. (Note: After firmly attached the sockets and the header pin, move the mounted pins
slightly tilted towards the front of the chassis.
Step 4 The figure here illustrates the basic layout of an individual QPM card. Each QPM card fits into the
selected QPM connector socket slot. Align the connector pins on the bottom of the QPM card
with the connector socket inside the unit.
Step 5 Be sure the QPM front panel is guided into the front slot cutout first and then precisely aligned the
header pins with the holes in the socket slot mounted on the board. Slowly and carefully apply
enough pressure on both rear corner of QPM Module to insert the QPM card's pins into position.
A click sound will determine the proper lockup of the two. (If you force the QPM down when the
pins are not properly aligned with the holes in the header, the pins will become bent and the QPM
is damaged).
Step 6 Once inserted, the QPM card will be secured by the header connector, the front panel port slot
cutout, and retaining screws. Use #4-40 pan head retaining screws to secure the module rear
part and #4-40 Flat Head (Black color) retaining screws for front panel.
NOTE: If a QPM is difficult to install, try it in another port slot. Some of the port modules may fit
easily in one port slot and be very hard to install in another.
NOTE: All QPM slots need not be filled in order for the ProSwitch Q-Series unit to be
operational. When leaving QPM slots empty, always use a faceplate (ProSwitch QPM-FP) to cover
the slot opening in the front panel. This will maintain proper cooling airflow, safety, and operation
as required by FCC, CE, and other regulations.
ProSwitch Quad-Series Fiber Switches
Installation and User Guide
AC Power Input
Back of Unit
Power Supply Board
Left
Side
with electronic
Media Connector
elements
Eight QPM Slots
Front of Unit
Page 16
Step 7 The figure below shows the top view of QPM Card after successfully installed the QPM cards
inside the QS5116.
Right
Side
Uplink
Switch
FRONT
Step 8 Once all QPM cards have been installed (including face plates for empty slots), the chassis
cover should be replaced.
3.9.3
Removing QPM Cards
To properly remove a QPM card from the Fiber Switch, follow the 3 steps below.
Step 1. Remove chassis cover. See procedure in Section 3.9.1 above.
Caution: Be sure the power cord is unplugged.
Step 2. Remove bottom-front retaining screws for the QPM and Face Plate.
On the bottom-front of the unit there are two retaining screws for each QPM card and faceplate
slot. These screws are used to secure a QPM card in position (see Figure 3.9.3a). Remove the
front screws first and then screw mounted on the rear-top of the QPM to be removed.
Step 3. Remove QPM Card.
Gently pull the QPM card up and out of the connector socket (see Fig.3.9.3b).
Figure 3.9.3b: Removing a QPM Card
If the slot from which the QPM card has been removed is to remain unused, be sure to install a
QPM faceplate cover in it. If another QPM card is replacing the one that has been removed, follow the
steps as described for installing a QPM card discussed in Section 3.9.1.
4.0
OPERATION
This chapter describes the functions and operation of the Quad-Series.
4.1
Switching Functionality
A ProSwitch Quad-Series provides switched connectivity at Ethernet wire-speed among all of its
ports. The ProSwitch Quad-Series supports10/100Mbps for copper media and 10 or 100Mbps separate
traffic domain for fiber port to maximize bandwidth utilization and network performance. All ports can
communicate to all other ports in a ProSwitch Quad-Series, but local traffic on a port will not consume
any of the bandwidth on any other port.
ProSwitch Quad-Series units are plug-and-play devices. There is no software configuring
required at installation or for maintenance. The only hardware configuration settings are user options for
UP-LINK on RJ45 quad-port. Half / Full duplex mode and 10 or 100Mbps selection for the switched ports
can be changed through jumper settings inside the unit. The internal functions of both are described
below.
Filtering and Forwarding
Each time a packet arrives on one of the switched ports, the decision is taken to either filter or to
forward the packet. Packets whose source and destination addresses are on the same port segment will
be filtered, constraining them to that one port and relieving the rest of the network from processing them.
A packet whose destination address is on another port segment will be forwarded to the appropriate port,
and will not be sent to the other ports where it is not needed. Traffic needed for maintaining the operation
of the network (such as occasional multi-cast packets) is forwarded to all ports.
ProSwitch Quad-Series Fiber Switches
Jumper Settings for HDX/FDX
and Auto Negotiation
J1
J2
J3
J4
Printed Circuit card
Two Set of Ten(10) Pin
QPM Connector
(inserts into main board
TOP
)
Fig. 3.9.2b Top View : QPM Module
LED
Installed inside a QS5116
Installation and User Guide
Page 17
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