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cgmClkDist MIB Description
PMC-CGM Installation and Use (6806800D53C)
61
The following table describes the elements of the cgmClkDist MIB branch
(OID:.1.3.6.1.4.1
.3656.8152.1.4).
Table 5-9 cgmClkDist Objects
OID MIB Object Description Access
.1.4.10 cgmClkDistMode The clock distribution mode of the module.
There are four main modes a module can be
operated in:
z Distributed Mode (0)
For each clock domain (CLK1/2/3), the
module selects a payload card in the shelf
and replicates it to the other payload cards.
The selection can be done manually or
automatically.
Not applicable for PMC-CGM.
z Extension Mode (1)
The module receives CLK1/2 from the main
shelf and distributes them to the local
payloads. Reference clocks (CLK3) can be
routed to the main shelf.
Not applicable for PMC-CGM.
z Buffer Mode (2)
The module receives CLK1/2/3 from the
main shelf and distributes them to the local
payloads.
Not applicable for PMC-CGM.
z Centralized Mode (3)
The module generates the T0 clocks based
on internal or external references. In
centralized mode there may be up to two
shelves connected, operating in either
extension or distribution mode.
z Extended Centralized Mode (4)
Like centralized mode, except that CLK3 is
routed to the main shelf via the front-panel
connector (i.e. REF A/B can not be selected
as input).
Not applicable for PMC-CGM.
Default value is centralized mode (3).
r/w
.1.4.11 cgmExtChConnection In centralized mode, selects the properties of the
connections to extension chassis 2 and 3 (not
connected, extended mode or buffered mode):
Single Chassis (0)
Chassis 2 in extension mode (1)
Chassis 3 in extension mode (3)
Chassis 2 and 3 in extension mode (5)
Default value is (0).
r/w