Specifications
50003510 Revision A 221
Typical configured system quantities as per ATT 48002 are:
Receiver Provisioning
This section provides receiver requirements for DTMF and CLASS receivers. DTMF receivers
are a shared system resource with provisioning done on a system level. CLASS receivers are
dedicated to the modules on their associated SX-200 SPINE.
The MCC contains seven receivers which can be programmed as DTMF receivers or as DSP
circuits in System Option 68, DSP DTMF Receiver Channels (0...7 default = 7) to optimize
performance.
Seven SX-200 SPINE CLASS/DTMF receivers can be allocated as CLASS or DTMF, with a
maximum of five CLASS receivers (default is three CLASS and four DTMF). System Options
61-67 can be selected to optimize performance based on the proportions of ONS to LS/CLASS
modules in each SX-200 SPINE Bay.
DTMF receivers can also be provided by adding DTMF Receiver/Relay modules to a Universal
Card. Each module contains four DTMF receivers.
Calculate receiver provisioning requirements for an SX-200 EL or SX-200 ML system using
the following table.
Light - 10 % Medium - 50 % Heavy - 90 %
Lines Trunks Lines Trunks Lines Trunks
75 875 12 75 19
50 650 10 50 15
25 525 725 10
Calculating Receiver Requirements
Step Calculation Result
1. Calculate the total number of ports that
may require access to a DTMF receiver.
Ports include:
• analog DID trunks
• digital DID trunks
• digital E&M trunks
•ONS ports
•OPS ports
•COV ports
Total ports = ______
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