Four inputs, Stratum 3 solution for the Synchronous Timing Source in SONET/SDH network elements.

Accepts 4 reference inputs in 9 steps from 8 kHz to 77.76 MHz (See specification below)

Compliant with Telcordia GR1244CORE, GR253 and ITU-T G.812 / G.813.

Hit-less reference switching.

Frequency ramp control during reference switching.

Supports Master / Slave operation

Three output signals: one selectable (See specification below) up to 77.76 MHz, one fixed at 8 kHz and 1.544 MHz or 2.048 MHz BITS output.

Dual reference inputs, LVPECL and CMOS outputs

Simple hardware control for operational mode

Automatic Free-run upon loss of input reference

Lock acquisition time < 1 second

Output frequency in sync with input frequency can be obtained.

Lock status can be monitored with VCXO control voltage monitor output used.

Output frequency in sync with input frequency can be obtained.

Lock status can be monitored with VCXO control voltage monitor output used.