106
C
HAPTER
5: C
ONFIGURING
P
ATH
B
UILDER
S600 M
ODULES
, P
ORTS
,
AND
A
PPLICATIONS
2
Specify the clock sources to be used for system timing.
a
From the System Clock Configuration menu select:
[3] Set PriorityClock 1
to
open the Priority Clock Configuration menu, shown in Figure 73.
Figure 73
Priority Clock Configuration Menu
b
Select the option corresponding to the clock source you want to use for the
system reference clock. In addition to the internal clock, you can designate any
of the following cards as clock source:
n
BITS
n
CBR, port n (n=1-4 for 4-port card or 1-8 for 8-port card)
n
DS3
n
E3
n
OC3
n
IMA, port n (n = 1-8)
n
FAM, port n (n = 1-8)
You can designate a card or a port as a clock source even if it has an alarm;
however, the card or port must be
In Service
. If a card or port is
Out of Service
, it
will not appear as an option on the Priority Clock Configuration or Reference Clock
Port Selection menu.
c
If you selected a non-multiple port clock source (Internal, BITS, DS3, E3, or
OC3) in step b, skip to step h; otherwise continue with step d.
d
If you select a card that has multiple ports (CBR, IMA, or FAM), a reference
clock selection menu opens when you select that card as a clock source.
Figure 74 shown the IMA Reference Clock Selection menu. The reference clock
selection menus for the other multiple port cards are similar.
In previous releases, you selected a card’s reference port through the card
configuration menus, and only that port was available to be selected as a clock
source in the System Clock Configuration menu. Now you can choose multiple
ports on the same card as different timing sources.
Summary of Contents for 3C63100-AC-C - PathBuilder S600...
Page 8: ...INDEX 3COM CORPORATION LIMITED WARRANTY ...
Page 14: ...xiv CHAPTER SUPPLEMENTARY REGULATORY INFORMATION ...
Page 18: ...18 ABOUT THIS GUIDE ...
Page 28: ...28 CHAPTER 1 SYSTEM DESCRIPTION ...
Page 74: ...74 CHAPTER 3 GETTING STARTED ...
Page 230: ...230 INDEX ...