Polycom MGC Administrator Administrator's Manual page 191

Table 4-2: MCU's Cards Status Columns (Continued)
Field
Type
Clock
Configured Clock
Status
Occupied Units
Description
Displays the type of card that occupies the slot. The
following card types are available, as listed in Table
4-1:
•
Network (Net-T1/Net-E1, Net-2, Net-4, Net-8,
ATM-25 or ATM-155, H.323, IP24, IP48,IP+12,
IP+24, IP+48, MPI-8)
• MUX or MUX+
• Data
• Audio or Audio+
•
Video or Video+
This column is valid only for ISDN and Serial (MPI-8)
Network Interface cards. One Net-T1/Net-E1 Module
in each MCU serves as the "master clock," which
synchronizes the system clock to the network clock.
A second Net-T1/Net-E1 Module provides a backup
clock, which is used if the master clock fails. The
primary and backup clocks can only be set in span A
of the Net-T1/Net-E1network cards.
On the Net-2/Net-4/Net-8 Network Interface Module,
the Master and the Backup clocks can be set on any
of the spans connected to the module.
This column indicates which Network card/span is
used as the Master Clock and which one is used as
the Backup clock.
Indicates which ISDN Network card or MPI Span was
configured as the Primary network interface (for
clocking), and which one is used as backup.
Changes take effect and are updated during the next
MCU reset or power up.
Indicates the card status.
Indicates the units on the card that are currently used
to run conferences. For example, 1, 6 indicates that
two units, unit # 1 and unit # 6 are used to run
conferences.
MGC Administrator's Guide
4-9