Samsung iDCS 500 Technical Manual page 133

iDCS 500 Release 2 / OfficeServ
TECHNICAL MANUAL
Proper programming of trunks that require DSP's allows for better utilization of the
available DSP's. It is recommended that only the trunks on the T1 Span that are going
to be used should be programmed. T1 trunks that are not used should be programmed
in MMC 411 as UNUSED. This is because some T1 providers send an offhook or
seized signal on unused or busied out T1 channels. This will cause the iDCS to assign
DSP's to trunks that are not in use.
Analog DID and E&M trunks will not use a DSP unless the trunk is seized. Unused
analog trunks should not be cross connected until ready for use. This will eliminate the
possibility of a "short" on the frame causing a DSP to be assigned.
NOTE1: The four circuit SLI card (4SLI) has four dedicated analog DTMF receivers.
One receiver is dedicated to each port on this card, and only this card. These analog
receivers cannot be used by any other system device. They are NOT a common
resource.
NOTE2: The AA card has 8 DSP's that are dedicated exclusively for AA ports. They can
not be used for any other purpose. This one DSP for each port ratio enables the AA
card to answer 8 incoming calls at the same time.
10.3 INSTALLING AA CARD IN EXISTING SYSTEM
There are several things to note when installing the AA card in an existing system:
• Although this card can be installed under power, iDCS system power must be
cycled for the main processor to recognize the card.
• After installing the AA card, you must perform a "card preinstall" as detailed in MMC
806.
• After completing a card preinstall, use MMC 724 to assign the AA port numbers
(you can use any unused numbers, but the default numbers 3951–3990 will not
conflict with any feature codes or station and trunk numbers).
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10.2
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INSTALLATION
PART 10 MARCH 2004