Vocality V100 Technical Manual page 190

C H A P T E R 5 A P P L I C A T I O N E X A M P L E S
Note that Unit 0 is configured to generate a transmit link clock of 128Kbps ("Int"), which is used internally
as the GRX reference (CLOCKING menu GRX source) and also received by Unit 1 and used as the GRX
reference (CLOCKING menu GRX source). Unit 1 then turns the clock around (TX clock set to "RXC") and
it is received back at Unit 0, which uses it as the RX clock source.
The programming of the clock references is essential to all tributary channels, since they must use a clock
reference to generate all local bit rates. In this example, the Global Receive clock bus ("GRX") takes the
Port 1 Aggregate RX clock and Port 2, which will be used to connect a router, uses the GRX as its
reference for generating the RX router clock. To go one stage further and operate Port 2 dynamically, the
RX clock source is set to "DBA". This allows the V100 to smoothly vary the RX clock on Port 2 according to
traffic demand. Finally, a destination address must be entered for Port 2.
V100 Versatile Multiplexer Technical Manual Version 2.2
Page 190 of 231