Multimode
Fiber Optic Switch
Digital - Latching - Status Sensor
TYPICAL APPLICATIONS
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Optical network switching
Optical network protection
Optical network restoration
Transmission equipment protection
Loopback diagnostic testing
Network test access
FDDI bypass
Local area network bypass
FO4649
FEATURES
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High reliability
Bidirectional
Integral position sensor
Small size
TTL interface
< 10 ms switching time
0.6 dB typical insertion loss
PCB mountable
Latching and non-latching configurations
High loss path for bypass & loopback testing (option)
Fail-safe return to bypass mode on power loss
(non-latching)
The switching mechanism is available in either a latching
or non-latching version with an integral position sensor for
both versions. Switches are available in On/Off, 1x2 and
2x2 configurations. There is also a high attenuation version
of the 2x2 switch used for node bypass applications.
The silicon based electromechanical multimode switch
uses a moving mirror actuation scheme to allow light to
pass through the switch on activation or to be blocked/
diverted when the switch is deactivated in a non-latching
configuration. This makes the switch particularly well suited
for fail-safe bypass applications.
A standard PCB footprint allows the switch to be conveniently
mounted. The standard switch is equipped with 1m
62.5/125 µm multimode fiber pigtails with no connectors,
but a variety of fiber and connector options are available.
For more information about our entire line of fiber optic
products, please visit our web site at
www.moog.com.
1213 North Main Street • Blacksburg, VA 24060-3127
800-336-2112
• FAX 540-557-6400
www.moog.com • e-mail: mcg@moog.com
SPECIFICATIONS
Environmental Ratings
Operating Temperature Range
Storage Temperature Range
Humidity (non-condensing)
Mechanical Life
Characteristics
VCC (also available w/ 3.3V and 12V)
Switching Time
Loss* 1-3 port
Loss* 2-4 port
Loss* 3-4 port
Loss* 1-2 port
Loss* 1-2 port (high atten. bypass)
Crosstalk
*Loss without connectors
Min Typ Max Unit
-10
-40
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10
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4.5
60
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70
85
95
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°C
°C
% RH
M
CYCLE
V
ms
dB
dB
dB
dB
dB
dB
5
––
5.0 10.0
0.7 0.8
0.7 0.8
0.8 1.0
0.8 1.0
5.5 6.0
–– ––
PART NUMBERING
FO4649
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CONFIGURATION
Code
Type
Latching
L
N
Non Latching
INTERFACE
Code
Type
Digital
(TTL)
D
Contact Mfg
x
ACTIVATION VOLTAGE
Voltage
Code
3.3 V
3
5V
5
1
12 V
Other
x
INPUT PORTS
#
Code
01
1
02
2
OUTPUT PORTS
#
Code
01
1
02
2
B2
2
D
-
-
-
-
PIGTAIL LENGTH
3 Digit Code for length in
centimeters (+10/-00 cm).
Standard length is 100 cm
Maximum length equals 300 cm
CONNECTOR
Style
None
FC/PC
SC/PC
LC/PC
ST/PC
Special
FIBER
Code
NC
FC
SC
LC
ST
XX
Code
A
B
C
x
λ
50/125/900
µm
62.5/125/900
µm
100/140/900
µm
Special
(1
High Attenuation Bypass Path)
CONFIGURATIONS
TYPICAL SWITCH CONFIGURATION (2X2)
OPTICAL PATH
1-3, 2-4
1-2, 3-4
SWITCH PIN CONFIGURATION
PIN NUMBER
1
2
3
4
5
DESCRIPTION
Set
VCC
GND
Rst
Status
STATUS
Logic High
Logic Low
(Bypass Mode)
All dimensions are in inches.
Specification and information are subject to change without prior notice.
© 2005 Moog Components Group MSG80027 7/05
800-336-2112
• FAX 540-557-6400 • www.moog.com • e-mail: mcg@moog.com
1213 North Main Street • Blacksburg, VA 24060-3127
Analog electronics
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