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General Information
Channels, Options, and Accessories
Channels, Options, and Accessories
Fiber-optic cables
The lightwave switch use one of three types of fiber-optic cables. To deter-
mine which fiber-optic cable type your lightwave switch uses, refer to the rear-
panel serial number label. This label indicates the installed options which are
defined in the following list:
Option 109:. . . . . . . . . . . . . . . . . . . 1280–1650 nm, 9/125 µm single-mode fiber
Option 163:. . . . . . . . . . . . . . . . . . . 750–1350 nm, 62.5/125 µm multimode fiber
Option H51: . . . . . . . . . . . . . . . . . . . .750–1350 nm, 50/125 µm multimode fiber
Switching is bi-directional
The lightwave switches are based on a moving fiber technology where an input
fiber is aligned with any one of "N" fixed output fibers. The input fiber is posi-
tioned by means of a precision stepper motor. Lightwave switches with two
input fibers allow the user to position either input A1 or A2 to a specific out-
put channel. The non-selected input may or may not align with another out-
put channel.
Lightwave switches with three or more "B" channels have an additional posi-
tion called channel O or OFF.
Special ordered instruments
Normal lightwave switches have only one layer installed. (A switch layer is a
switch matrix of "A" ports and "B" ports.) However, special ordered instru-
ments may have multiple switch layers installed. If the rear panel shows more
than one set of "A" ports and "B" ports, the instrument has multiple switch
layers. Other switch configurations, such as non-blocking matrices are avail-
able as special orders.
Serial numbers
Hewlett-Packard makes frequent improvements to its products to enhance
their performance, usability, or reliability, and to control costs. HP service per-
sonnel have access to complete records of design changes to each type of
equipment, based on the equipment's serial number. Whenever you contact
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