Installation Manual 30 Document #: LTRT-83506
Mediant 1000
For example, if the device requires one TRUNKS module and two FXS modules, then
you must insert the TRUNKS module in Slot 1 and the two FXS modules in slots 2 and
3 respectively. If at a later stage, you wish to add a BRI module (for example), then
you must replace the FXS module in Slot 2 with the new BRI module, and then re-
insert this replaced FXS module in Slot 4. The figure below displays an example
illustration of correct module slot assignment:
Figure 2-18: Recommended Priority Module Slot Assignment
The MPM module provides IP media channels for applications such as
announcements, conferencing, and IP-to-IP call routing:
• When no other modules are used, up to three MPM modules can be housed in
the device.
• For conferencing, one MPM module must be housed in Slot 6, providing 20 media
channels. For additional media channels, you can add MPM modules to slots 4
(40 channels) and 5 (40 channels) as well, thereby providing a total of 100 media
channels for conferencing.
• For applications other than conferencing (e.g., IP-to-IP routing and
announcements), the MPM modules can be housed in slots 3, 4, and 5. Each
module provides 40 channels, therefore, providing a total of 120 channels (60 for
IP-to-IP call sessions).
• The device can acquire additional media channel resources (for IP-to-IP routing
and conferencing) from the TRUNKS modules. For a description of this
configuration, refer to the device's User's Manual.
2.5.2 Replacing Modules
The device's I/O modules are hot-swappable (except for the OSN Server modules). The
physical replacement of the TRUNKS, FXS, and FXO modules is performed together with a
software replacement procedure performed in the device's Web interface. Once you have
'software-removed' the module, you can then physically remove the module and replace it
with a new module. Once the new module is inserted in the chassis slot, you then need to
'software-insert' it.
Warnings:
• Replace damaged modules with the identical module type and in the
exact chassis slot. For example, a TRUNKS module with two digital
spans in Slot 1 must be replaced with a TRUNKS module with two digital
spans in Slot 1.
• When only one I/O module remains in the chassis, removal of this last
module causes the device to reset.
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