ProSwitch Quad-Series Fiber Switches
Installation and User Guide
Page 10
probable growth of the central switch is towards more fiber backbone segments, then two quad-port fiber
QPMs are selected to provide 6 required fiber ports and two for spares and/or future backbone
expansion. The 8-switched copper ports are handled with two RJ45 Quad-Port Modules configured into
the ProSwitch-QS5116. Should the number of servers expand, more than one server can be serviced by
a switched QS5116 port by using a small 4-port 100Mbps hub or switch.
If the probable growth of the central Switch is towards more local high speed servers and users,
then one quad-port fiber QPM is selected to provide 4 of the required fiber ports, and two “combo
3@RJ45 + 1@fiber” QPMs are configured for the other 2 fiber ports plus 6 of the switched copper ports.
Finally, an RJ45 QPM is configured to provide for the remaining 2 copper ports plus two for spares and/or
future expansion. Should the need arise to add a built-in-fiber backbone port in the future, the RJ45 QPM
could be removed and another “3+1 combo” QPM installed in the field. Alternatively, a 100Mbps Media
Converter may be used on a copper port, with internal jumpers (See Section 3.4) set to support fixed
100Mbps FDX on the RJ45 port.
3.0
Installation
Before installing the equipment, it is necessary to take the following precautions:
1. If the equipment is mounted in an enclosed or multiple rack assembly, the environmental
temperature around the equipment must be less than or equal to 50
0
C.
2. If the equipment is mounted in an enclosed or multiple rack assembly, adequate airflow must be
maintained for proper and safe operation.
3. If the equipment is mounted in an enclosed or multiple rack system placement of the equipment
must not overload or load unevenly the rack system.
4. If the equipment is mounted in an enclosed or multiple rack assembly, verify the equipment’s
power requirements to prevent overloading of the building/s electrical circuits.
5. If the equipment is mounted in an enclosed or multiple rack assembly verify that the equipment
has a reliable and uncompromised earthing path.
Installation:
This section describes installation of the ProSwitch Quad-Series Switches, as well as
connection of the various Ethernet media types.
3.1
Locating ProSwitch Quad-Series Switches
The location of a ProSwitch Quad-Series switch is dependent on the physical layout of the
network. Typically the switch is placed in a central wiring location where groups of network devices need
to be connected in order to communicate with each other. These switches are typically rack mounted in a
wiring closet see Section 3.3.2 below), but because they have rubber feet they can also be installed on a
shelf or table top. The compact size of the 8-port QS580 unit allows it to be easily placed in an office or
lab area, and it can also be either shelf of wall-mounted (see Section 3.3.1 below).
Locate an AC receptacle that is within six feet (2 meters) of the intended ProSwitch Quad-Series
site. The rugged metal case of the ProSwitch Quad-Series will normally protect it from accidental
damage in a lab or workplace setting. Maintain an open view of the front to visually monitor the status
LEDs. Keep an open area around the unit so that cooling can occur from the small fan on the left side,
while the unit is in operation. See figure below.
Figure 3.1: Location of 8-port ProSwitch-QS580’s cooling fan exhaust
3.2
Connecting Ethernet Media
The ProSwitch Quad-Series fiber switches are
specifically designed to support all standard Ethernet
media types within a single switch unit. This is
accomplished by using a family of Quad-port Modules
(QPMs), which can be individually selected and
configured per-port. See Section 2.4 for a description
ON
OFF
110-220
VAC
47-63Hz
1.0-0.5A
FAN EXHAUST
ProSwitch Quad-Series Fiber Switches
Installation and User Guide
Page 11
of the QPMs.
The various media types supported along with the corresponding IEEE 802.3 and 802.3u
standards and connector types are as follows:
IEEE Standard Media
Type Max.
Distance Port
Module
Fiber:
100BASE-FX mm1 Fiber
2.0km (6,562 ft)
QPM-MSC, -MST
sgl.m2
Fiber
18.0km (95K ft)
QPM-SSC
small form factor
mm1 Fiber
2.0km (6,562 ft)
QPM-MTRJ, -MV45
10BASE-FL mm1 Fiber
2.0km(6,562 ft)
QPM10-FST
Copper:
10BASE-T
twisted pair
100m (328 ft)
QPM10-FST
100BASE-TX
twisted pair
100m (328 ft)
QPM-RJ45
1 mm = multimode
2 sgl.m = singlemode
3.2.1 Connecting Fiber Optic ST-type, “twist-lock”
The following procedure applies to installations using a QPM with ST-type fiber connectors. This
procedure applies to ports using a QPM-MST or QPM10-MST.
1. Before connecting the fiber optic cable, remove the protective dust caps from the tips of the
connectors on the QPM. Save these dust caps for future use.
2. Wipe clean the ends of the dual connectors with a soft cloth or lint-free lens tissue dampened in
alcohol. Make certain the connectors are clean before connecting.
Note:
One strand of the duplex fiber optic cable is coded using color bands at regular
intervals; you must use the color-coded strand on the associated ports at each end of the
fiber optic segment
.
3. Connect the Transmit (TX) port (light colored post) on the ProSwitch module (QPM) to the
Receive (RX) port of the remote device. Begin with the color-coded strand of the cable for this
first TX-to-RX connection.
4. Connect the Receive (RX) port (dark colored post on the PM) to the Transmit (TX) port of the
remote device using the non-color coded fiber strand.
5. The LINK LED on the front of the QPM will illuminate when a proper connection has been
established at both ends (and when power is ON in the unit). If LINK is not lit after cable
connection, the normal cause is improper cable polarity. Swap the fiber cables at the QPM
connector to remedy this situation.
3.2.2 Connecting Fiber Optic SC-type, "Snap-In"
The following procedure applies to installations using a QPM with SC-type fiber connectors, i.e.,
using QPM-MSC, QPM-SSC singlemode, and QPM10-MSC.
When connecting fiber media to SC connectors, simply snap on the two square male connectors
into the SC female jacks of the QPM until it clicks and secures.
3.2.3 Connecting
Singlemode Fiber Optic
When using singlemode fiber cable, be sure to use singlemode fiber port connectors.
Singlemode fiber cable has a smaller diameter than multimode fiber cable (9/125 microns for singlemode,
50/125 or 62.5/125 microns for multimode where xx/xx are the diameters of the core and the core plus
