Datafill and subscription parameters 9-11
Digital Switching Systems DMS-250 ISDN Reference Manual MWC14 (CSP14)
Table LTCINV
Table LTCINV maintains a list of line-trunk controller (LTC)-based
peripherals that are datafilled in the DMS-250 switch. This table identifies
the location of the ISDN digital trunk controller (DTCI) is located, the load
and exec lineups required, and the network link connections.
Important fields
Important fields in the TERMTYPEs vector include:
• TERMTYPE—PRAB must be datafilled.
• EXEC—Datafill as UTR250.
• OPTCARD—This vector must include ISP16.
ITA configuration
To configure integrated trunk access (ITA) on DTCI, the TERMTYPES
vector in Table LTCINV must be datafilled as follows:
• TERMTYPE—PRAB must be datafilled.
• EXEC—Datafill as UTR250.
• TERMTYPE—AB250 must be datafilled.
• EXEC—Datafill as UTR250.
• TERMTYPE—ABTRK must be datafilled.
• EXEC—Datafill as DTCEX.
Table LTCPSINV
This table replaces Table IACPSINV. An entry in this table is automatically
added when a DTCI is added in the Table LTCINV.
PRI trunks—important fields
Important fields in the P-side links vector for PRI trunks include:
• AREASELECT—must be DS1PRA
• CARRIDX—as defined in Table CARRMTC
• IID—must be unique for each DS-1 within a PRI trunk group
Example
0 DS1PRA DEFAULT N 0 NIL
PTS trunks—important field
An important field in the P-side links vector for PTS trunks is
• AREASELECT—must be DS1
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