Switch Module - Large Channel Count (Discontinued)

SKB series

VIAVI modular 1xN controllable switches are designed to connect a single optical channel to any of N channels.

The VIAVI SKB series controllable optical switch is designed to connect a single optical channel to any of N channels. It is the enhanced version of our legacy SK/SP series switch modules and is the only stepper-motor based switch module available in this market with a lifetime greater than 120 million cycles. Each module can accommodate multiple 1 x N switches that can be internally interconnected to provide various types of configurations, such as blocking M x N, where M represents inputs and N represents outputs, or each module can operate as independent switches. The switch module is available in two package sizes:

  • Package size 1 can accommodate up to two switches with total channel count up to 50.
  • Package size 2 can accommodate up to four switches with a total channel count up to 100.

The operation of the switch is based on proven JDS Uniphase's expanded beam lens technology utilizing a precision stepper-motor to align optical channels. The use of collimating lenses minimizes insertion loss (IL). The design is optimized for high return loss (RL). The switch is microprocessor controlled via a parallel interface or addressable serial interface (RS-485). It is designed for mounting on a printed circuit board or within a module for OEM applications.


  • Remote fiber test systems (RFTS)
  • Fiber network restoration
  • Fiberoptic component test and measurement
  • Integrated module solution designed for integration into new products
  • OEM applications
  • Sensing applications

Key Features

  • Lifetime greater than 120 million cycles
  • Up to 100 channels
  • Up to 4 switches in a module
  • Internal switches can be factory configured to create various configurations, such as blocking MxN
  • Latching version available
  • Queriable switch position and configuration
  • Status and alarm registers
  • Highly customer-configurable to assist in swapping spares or changing channel order
  • Operating temperature of - 35 to 75 °C for steppermotor-based switches
  • Typical IL 0.5 dB

Support at Every Step

We provide support, services, comprehensive training and the resources you need. It’s all part of what we do to maximize the value of your VIAVI investment.

Let Us Help

We’re here to help you get ahead.