Specifications

FO SERIES
PASSIVE FIBER OPTIC SWITCHING SYSTEMS
CYTEC's new FO Series Passive Fiberoptic Switching Systems are computer controlled chassis
that are designed to switch standard fiberoptic wavelengths of 850 nm, 1310 nm and 1550
nm. Multimode 62.5/125 um switches are available for 850 nm and 1310 nm wavelengths,
while Singlemode 9/125 um switches are available for 1310 nm and 1550 nm. Passive, bidirec-
tional Moving Fiberoptic Switches are used that show insertion losses as low as 0.10 dB for
Multimode and 0.25 dB for Singlemode switches. Three configurations are available: Indi-
vidual Switches, Nx1 Multiplexers and NxM nonblocking (but not full fan-out) Matrices. Con-
trol options include RS232, IEEE488 and TCP/IP Ethernet LAN. Manual Control is optionally
available.
FO/16 with Pushbutton Manual Control
The FO Series are all 19" rack mounting chassis
and are available either as Mainframes or Expan-
sion Chassis. Standard chassis provide from eight
to 32 individual switch points. All chassis have
front panel LEDs for a visual indication of switch
point status. Input and output signal connectors
protrude from the chassis rear. FC, SC and ST
fiberoptic connectors are standard.
STANDARD CHASSIS
Standard units are built with the required power supplies, a
user specified Control Module and optionally a Manual Con-
trol. Control Module selections are shown on the last page of
this bulletin. The system is completed by specifying the num-
ber and type of FO Series Fiberoptic Switches described
below.
FO/8, FO/16 & FO/32 CHASSIS
CUSTOM CHASSIS
Custom configurations are available on request. As examples,
switch modules can be wired out to nonstandard rear panel
fiberoptic connectors; switch modules can also be wired to-
gether with fiberoptic interconnects to furnish small nonblock-
ing matrices (2x2, 2x4, 4x4, etc.)
FO SERIES PASSIVE SWITCH MODULES
The FO Fiber Optic Switches utilizes a “moving fiber” design
concept to achieve highly accurate direct fiber to fiber connec-
tions. Currently available in 1x2, dual 1x2 and dual 1x2
nonblocking configurations. Also available in both Single
and Multimode versions as well as Normal and Low Loss
types. Insertion Loss is as low as 0.25 for Singlemode and
0.10 dB for Multimode switches.
FO Series
Switch Module
FO SERIES SWITCH SPECIFICATIONS
(Individual Modules without connectors) :
Connectors ST, SC, FC Standard
(others available on request)
Wavelength Range 850 nm, 1310 nm Singlemode
(nominal) 1310 nm, 1550 nm Multimode
Glass Fiber Types 9/125 um Singlemode
62.5/125 um Multimode
Insertion Loss 0.25 dB Singlemode
Low Loss Type, typ. 0.10 dB Multimode
Insertion Loss 0.8 dB Singlemode
Normal Loss Type, typ. 0.6 dB Multimode
Back Reflection -60 dB Typical
Crosstalk -70 dB Maximum
Repeatablility 0.01 dB
Switch Time 10 milliseconds Typical
Optical Power +20 dBm max. Singlemode
+ 23 dBm max. Multimode
FO/1x2
Switch Module
FO/2x2
Crossover Module
FO/2(1x2) Blocking
Switch Module
These chassis furnish 8, 16 or 32 individual switch points.
One front panel LED is assigned to each switch point and
displays status.
FO CHASSIS
FX/FO-3