3.1.1 System Clock Source
The T1 Setup screen also allows you to set the system clock source. The clock source is used for tim- ing the transmit side of all the T1s and for the Tx and Rx clock signals on serial data ports. We rec- ommend setting the primary and secondary clocks to different sources.
3.1.2 T1 Hardware Setup
You can configure the T1 network interface to match characteristics of attached T1 data streams.
To configure the T1 network interface:
1.Click on the white box under the required characteristic (Framing, Line Coding, etc.) for T1 #1 or T1 #2.
2.Click on the small arrowhead. A selection menu displays.
3.Click on selection from menu.
