Market Central 6100924-SC User manual

Market Central
www.secureswitch.com
February, 2011
Fiber Optic Network
Access Control A/B Switch
Part Numbers
6100924-SC 1U Rackmount, Single FONAC A/B Switch,
with SC connectors
Rackmount
Market Central Inc., 500 Business Center Drive, Pittsburgh, PA 15205
Phone: [phone], Fax: [phone], www.secureswitch.com CAGE Code 1BGJ7
Copyright©2010. Market Central, Inc. All rights Reserved.
Market Central®and SwitchMaster®are registered trademarks of Market Central, Inc.

Contents
Chapter Page
1. Specifications 2
2. Introduction 3
3. Installation 3
4. Operation 4
5. Troubleshooting 5
1. Specifications
Connectors: (3) duplex SC, (1) 3.5-mm power input,
(1) Six position terminal block.
Data Rates: Transparent to optical signal rates and formats
Switching Speed:5 msec typical, 10 msec maximum
Sensitivity:800 to 1600 nanometers
Optical Loss: 1.0dB typical @ 1300 nm per FOTP-34 method B when using 62.5/125 µm multimode fiber
Crosstalk: Less than -45 dB per FOTP-42
Approvals: UL, cUL, TUV, PSE and CE (power supply)
Temperature: 14 to 149ºF (-10 to +65ºC) operating, -4 to 158ºF (-20 to +70ºC) storage
Relative Humidity:0 to 95%, noncondensing
Mean Time Between Failures:
100,000 hours or 1,000,000 cycles
Power:100-240VAC, 50/60-Hz wall mount supply, 12VDC output
Size: 6.7”D x 19”W x 1.75”H -1U rackmount
Weight: 5 lb
Remote Control Inputs: External dry contact not to exceed 100 ohms resistance including cable.
Status Relay Contact Rating: 30 VDC, 1A maximum (resistive)
1U Rackmount, Single FONAC A/B Switch, with SC connectors Page 2

2. Introduction
The Fiber Optic Network Access Control A/B Switch is a
non-latching full-duplex optical switch. It is used to provide access to two different networks at the user’s
discretion.
The A/B Switch operates with a unique switching mechanism. When you connect (short) Pin 1 to Pin 2 on
the terminal block located on the back of the unit, the internal optical mirror mechanism will provide a
connection path between the Common port and port B. The front panel B LED will illuminate to indicate
that the connection path is B. If power is lost, or if the Pin 1 to Pin 2 connection on the terminal block is
removed, the Fiber Optic Network Access Control A/B Switch will revert to the Common port to port A
connection state.
The slide switch on the front panel operates in parallel with the rear panel terminal block contacts. When
the slide switch is in the ON position, the internal optical mirror mechanism will provide a connection path
between the Common port and port B, and the front panel B LED will illuminate to indicate that the
connection path is B. When in the ON position, the slide switch also provides a connection between pins 1
and 2 on the terminal block. This feature could be used to activate a set of remote contacts on a secondary
device.
The terminal block on the rear of the unit also provides 3 signal pins for remote status indication to allow a
programmable controller or similar device to determine the status of connection path through the Fiber
Optic Network Access Control A/B Switch (see table 3.1).
3. Installation
Place the switch in a location relatively free from vibration and mechanical disturbances.
Connect your fiber optic cables to the Common port, Port A and Port B. Note that the switch supports
separate transmit and receive paths, so you must be consistent when connecting the fiber pairs to the
switch.
Connect your remote contact across Pins 1 & 2 on the terminal block. If using a remote status indicator,
connect the remote status indicator to the terminal block (refer to table 3.1 for terminal block pin
assignment).
Note: The external remote control circuit including cable and external dry contact closure cannot exceed
100 ohms resistance.
Apply power to the Fiber Optic Network Access Control A/B Switch using the 12 VDC power supply
provided. Either the A LED or the B LED should illuminate to indicate that the unit is energized and to
show the current connection state.
Pin 1 Active Contact
(to switch to port B)
Pin 2 Ground
Pin 3 Not Used
Pin 4 Status Relay N.C.
Pin 5 Status Relay COM
Pin 6 Status Relay N.O.
Table 3.1 -Terminal Block (Pin 1 is on the Left)
NOTE: Pin 4 & 5 are connected when in the Common Port to A Port connection state, Pins 5 & 6 are
connected when in the Common Port to B Port connection state.
1U Rackmount, Single FONAC A/B Switch, with SC connectors Page 3

4. Operation
The Fiber Optic Network Access Control A/B Switch uses a non-latching optical switching mechanism to
direct the light beams between the Common Port and Port A or Port B. There’s no optical-to-electrical
conversion. The only electrical activity is the DC power required to move the precision mirror mechanism
and to power the LEDs. A set of non-latching relay contacts are also provided at the terminal block for
remote status. Since non-latching switching mechanisms are used, if power is removed or lost the switch
automatically reverts to the Common Port to A Port connection state (the status contacts likewise
automatically change state if appropriate).
To operate the switch simply apply power to the unit by providing a source of AC voltage to the wall
mount power supply. If power is applied and either the override switch is ON or the terminal block Active
contact is shorted to the Ground contact, then the switch will be in the active state (Port B connected to the
Common Port). The switch is in the inactive state (Port A connected to the Common Port) if power is
removed, or if both the override switch is in the OFF position and the terminal block Active contact is not
connected tothe Ground contact. (See table below)
Connection
State Power Override Switch Remote Contact
Port A to
Common OFF XX
Port A to
Common ON OFF OPEN
Port B to
Common ON ON X
Port B to
Common ON XCLOSED
The Fiber Optic Network Access Control A/B Switch has been designed so that it can be easily driven
using the remote status dry contact closures from Market Central’s SecureSwitch Fiber Optic A/B/C Switch
Revision B product. In the example shown below, when the PLC Controller switches the Rev B
SecureSwitch to port B, the remote status dry contact outputs B-B on the SecureSwitch Rev. B unit will
close, causing the Fiber Optic Network Access Control A/B Switch to optically connect its Common Port
to its B Port.
1U Rackmount, Single FONAC A/B Switch, with SC connectors Page 4

5. Troubleshooting
5.1 Calling Your Supplier
If you determine that your Fiber Optic Network Access Control A/B Switch is malfunctioning, do not
attempt to alter or repair the unit. It contains no user-serviceable parts.
Contact Market Central, Inc. at [phone]
Before you do, make a record of the history of the problem. We will be able to provide more efficient and
accurate assistance if you have a complete description of the problem,
including:
•the nature and duration of the problem.
•when the problem occurs.
•the components involved in the problem.
•any particular applications that, when used, appears to create the problem or make it worse.
5.2 Shipping and Packaging
If you need to transport or ship your switch:
•Package it carefully. We recommend thatyou use the original container.
•If you are shipping the switch for repair, make sure you include everything that came in the original
package. Before you ship, contact Market Central, Inc. to get a Return Materials Authorization (RMA)
number.
1U Rackmount, Single FONAC A/B Switch, with SC connectors Page 5

MARKET CENTRAL, INC.
WARRANTY AND LIMITATION OF LIABILITY
Market Central, Inc. (“Market Central”) warrants that the products manufactured and sold by it or by one of its authorized
resellers will, when sold, be free of defects in workmanship or material under normal service and use. Products which have been
changed or altered in any manner from their original design, or which are
improperly or defectively installed, serviced or used, are not covered by this warranty. If any failure to conform to this warranty
becomes apparent during a period of one (1) year after date of sale, Market Central shall, upon prompt, written notice and compliance
by the
customer with such instructions as it shall give with respect to the return of defective products or parts, correct such non-conformity
by repair or replacement of the defective part of parts. Correction in the manner provided above shall constitute a complete fulfillment
of all obligations and liabilities of Market Central with respect to the quality of said products. THE FOREGOING WARRANTY IS
EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES OF QUALITY, WHETHER WRITTEN, ORAL OR IMPLIED,
INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR PURPOSE.
THIS WARRANTY AND THE OBLIGATIONS AND LIABILITIES OF MARKET CENTRAL HEREUNDER ARE
EXCLUSIVE AND IN LIEU OF AND BUYER HEREBY WAIVES ALL OTHER REMEDIES, WARRANTIES, GUARANTIES
OR LIABILITIES, EXPRESS OR IMPLIED, ARISING BY LAW OR OTHERWISE (INCLUDING WITHOUT LIMITATION
ANY
OBLIGATIONS OF MARKET CENTRAL WITH RESPECT TO FITNESS FOR PURPOSE, MERCHANTABILITY AND
INDIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES OR LOST PROFITS) OR WHETHER OR NOR OCCASIONED BY
MARKET
CENTRAL’S NEGLIGENCE. THIS WARRANTY SHALL NOT BE EXTENDED, ALTERED OR VARIED EXCEPT BY A
WRITTEN INSTRUMENT SIGNED BY A DULY AUTHORIZED OFFICER OF MARKET CENTRAL.