Multimode
Fiber Optic Switch
TYPICAL APPLICATIONS
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FDDI bypass
Local area network bypass
Optical routing
Loopback diagnostic testing
Ring network protection
Test access
FO4635
FEATURES
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Small size
Switching time < 10.0 ms
Low power consumption
Bidirectional
Fail-safe return to bypass mode with power-off
Printed circuit board mountable
Switch status, electrical contacts
Low insertion loss
High reliability
High loss option for bypass & loopback testing
Non-latching
PCB mountable
The silicon micromachine based electromechanical multimode
switch uses a movable mirror process to allow light to pass
through the switch on activation or to be blocked/diverted
when the switch is deactivated. This makes the switch
particularly well suited for fail-safe bypass applications.
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 (i.e. FDDI) applications.
A standard PCB footprint allows the switch to be conveniently
mounted with control electronics.
The standard switch is equipped with 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
Actuation Voltage
Actuation Current
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
Status Contacts @ 24 VDC
*Loss without connectors
Min Typ Max Unit
-20
-40
––
1.0
4.75
––
––
––
––
––
––
4.5
60
––
––
––
––
––
70
85
95
––
°C
°C
% RH
M
CYCLE
V
mA
ms
dB
dB
dB
dB
dB
dB
A
5.0 5.5
40 ––
5.0 10.0
0.7 0.8
0.7 0.8
0.8 1.0
0.8 1.0
5.5 6.0
–– ––
–– 1.0
PART NUMBERING
FO4635
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BASIC PART NUMBER
INPUT PORTS
CODE
QUANTITY
01
1
02
2
OUTPUT PORTS
CODE
QUANTITY
01
1
02
2
B2
2HA**
**High Attenuation Bypass
MULTIMODE FIBER
CODE
SIZE
INDEX
NA
I
50/125
Graded
.20
M
62.5/125
µm
Graded
.28
C
100/140
Graded
.29
X
Special Identify Before Sale
WAVELENGTH
CODE
λ
8
850nm
3
1300nm
X
Special
CONNECTOR
CODE
STYLE
NC
NONE
FC
FC/PC
SC
SC/PC
SM
SMA
ST
ST/PC
XX
Special
LC
LC/PC
PIGTAIL LENGTH
CODE
LENGTH
S
1.5 meters
X
Special
Specification and information are subject to change without prior notice.
© 2005 Moog Components Group MS1067 7/05
All dimensions are in inches.
TYPICAL SWITCH CONFIGURATION (2x2)
OPTICAL PATH STATUS CONTACTS
Switch On
1-3, 2-4
Closed
Switch Off
1-2, 3-4
Open
SWITCH PIN CONFIGURATION
PIN NUMBER
DESCRIPTION
1
+5 VDC
2
Common
3
N.O. Status Contact
4
N.O. Status Contact
5
Not Used
SET = Blocking, RST = Non-Blocking
NU - Not Used
800-336-2112
• FAX 540-557-6400 • www.moog.com • e-mail: mcg@moog.com
1213 North Main Street • Blacksburg, VA 24060-3127
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