User Manual Part 1
Installing the Host Unit
Page 78 FlexWave Prism Host, Remote and EMS 5.1 System Reference
© 2009 ADC Telecommunications, Inc ADCP-77-073 • Issue 2 • 11/2009
3.3.8 EXT REF Connections
EXT REF connections between multiple Hosts is supported through two QMA type
female connectors mounted on the System card. One of the jacks is designated as the
IN port and the other jack is designated as the OUT port. The EXT REF interface allows
Hosts to be connected together (in daisy-chain fashion) and clocked through a single
source.
Use the following procedure to connect EXT REF interface cables between multiple
Hosts:
488 Connect one end of the EXT REF interface cable (accessory) to the EXT REF OUT
port on Host #1.
When using the 10 MHz external reference clock the signal must be connected to the
Host before enabli
ng the clock source in the software. If there isn’t a working external
clock source when you configur
e external timing, the optical sync at the Remote will be
lost and all traffic will stop flowing.
77073-066