Specifications

Chapter 1 General Information MX-2100/2104 Installation and Operation Manual
1-20 Application Considerations
Modules which transmit the signaling information in-band, e.g., KVF.1 and KVC.2,
do not require bandwidth allocation for channel end-to-end signaling.
Bandwidth Allocation Example
A MX-2100 enclosure equipped as follows is connected to a 256 kbps link (BAU
used with this link rate is 1.6 kbps). The following table lists the required
bandwidth allocation.
Table 1-3. Example of Bandwidth Allocations
Modules Installed in Enclosure Allocation Units
Five KLS.1 with 4.8 kbps per channel (total of 10 channels);
seven channels (distributed among four modules)
require end-to-end signaling
30 units
4 units signaling
Two KLS.1 with 9.6 kbps per channel (total of 4 channels),
no end-to-end signaling
24 units
One KLS.2 with composite data rate of 19.2 kbps 12 units
One KHS.1 with 64 kbps per channel, no end-to-end
signaling
40 units
One KVC.1 module at 32 kbps per channel 40 units
1 unit signaling
Total user allocation
Frame synchronization
Management channel (9.6 kbps)
151 units
1 units
6 units
Total capacity used
158 units
Reserve capacity 2 units (3.2 kbps)
Redundancy (not for MX-2104)
The minimum MX-2100 system configuration requires only one KPS module, one
KCL module and one KML module. For critical applications, system availability can
be increased by installing redundant modules in the enclosure.
The redundancy capability is available for two critical functions: the main link and
the power supply. A failure in either one of these functions, e.g., because of link
failure or loss of power, could disable the whole system. However, a failure in an
I/O module affects only a small part of the system, and can generally be overcome
by using alternate routes, putting unused capacity into service, etc.
The MX-2100 system is designed to automatically put a redundant module in
service in case the corresponding module fails, thereby ensuring continuous system
operation in the event of any single module failure. Moreover, redundant modules
may be inserted or removed even while the system operates, without disrupting
the traffic or degrading the system performance.
The utilization of the redundant modules is explained in the following section.
Note