Configuring the Serial Interface
95
PLCP Timing Source
(DS3 only) — The PLCP timing source for the DS3 port:
System Clock
— PLCP is timed from the internal 8kHz backplane clock.
DS3 Timing
— PLCP is timed from the 8kHz reference clock derived from
the received PLCP.
CTX Timing Source
— The CTX timing source for the DS3/E3 port.
DS3/E3 Rx Clock
— Selects the DS3 or E3 Rx clock as the CTX timing
source.
Configuring the Serial
Interface
Configuring the serial interface involves the following tasks:
■
Configuring the serial port
■
Configuring the serial card
Configuring the Serial
Port
To configure the serial port:
1
From the Configuration Management menu, select
[1] Manage Card
to open the
List Card menu, shown earlier in Figure 60.
2
From the List Card menu, select
[5] SIM
to open the SIM Configuration Port/Card
Selection menu, shown in Figure 85.
Figure 85
SIM Configuration Port/Card Selection Menu
3
Select
[1] Port 1
to open the SIM Port Configuration Port/LMI selection menu,
shown in Figure 86.