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8 Issue 2, December 2004 61180403L1-5B
Table 6. FXS/DPO Mode Options
Mode Description
Loop Start This option selects ANSI T1.403 FXS Loop Start mode of operation.
Ground Start This option selects ANSI T1.403 FXS Ground Start mode of operation.
TR08 Single Party This option selects GR-08-Core Loop Start mode of operation.
TR08 Universal VG This option selects GR-08-Core Ground Start mode of operation.
TR08 Auto This option selects automatic detection of TR08 Single Party or TR08 Universal VG, based
on incoming signalling.
PLAR D4 This option selects Private Line Automatic Ringdown where onhook = 00. Signaling must
match the PLAR unit at the distant end.
PLAR D3 This option selects Private Line Automatic Ringdown where onhook = 11. Signaling must
match the PLAR unit at the distant end.
Tandem This option selects A/B signaling on the Network side for use with a Class 4 Tandem switch.
DPO This option selects Dial Pulse Originate for Direct-Outward Dial applications.
FX Ringdown This is the PLAR mode of operation that allows for a FXS Loop Start unit on the distant end.
TO w/SC This option disables signaling for Transmission Only with Sealing Current enabled. Used in 2
w/TO applications where the Network Customer Termination Equipment (NCTE) or
Customer premise equipment provide for termination of the sealing current (sealing current
sink).