LL-3515, which includes an array of eight 2x2 photonic switches, suitablefor many different applications, including 1+1 and 1:1 (programmable) protection, and adding reconfigurability to static OADMs.

LL-3511, an array of eight 1x2/2x1 photonic switches that allows trafficto pass through to pre-designated alternative paths during power-off. This is an ideal solution for military and security field deployment where power sources may be unreliable, for disaster recovery applications, and for adding reconfigurability to static OADMs.

LL-3513, an array of eight 1x2/2x1 photonic switches, similar to theLL-3511 except that traffic is deliberately blocked during power-off. This model would typically be used in network environments where failure-mode operation needs to be predictable and any misconnections during power-off must be avoided.

LL-3540, an array of four 1x2/2x1 photonic switches with bi-directionalswitching. This model allows traffic to pass through during power-off and includes a loop-back option for switch and link status interrogation.

LL-3507, which includes a 1x4 photonic switch that can also be used as a4x1 switch.

LL-3509, which includes two 1x4/4x1 switches in the same 1U enclosure.The switches have very low optical crosstalk and are ideal for front-ending an OTDR or an optical channel monitor.