Toshiba DK14 Installation And Maintenance Manual page 139

Notes
REMU provides four E&M Tie trunks (Type I or II signaling, Wink or Immediate Start, 2- or 4-
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wire transmission).
The PEMU1 can also be used. The PEMU only provides Type 1 signaling, 2- or 4-wire
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transmission and Immediate Start.
See Table 4-9 for REMU/PEMU maximum quantities. Prior to Release 4, each REMU or PEMU
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reduced system station port line and capacity by four ports and four lines. With Release 4, Tie
lines do not use station ports.
6. Determine analog DID line PCB (slot) requirements.
Notes
RDDU provides four Direct Inward Dialing lines. (Prior to Release 4, each RDDU reduces
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system station port and line capacity by four ports and four lines.) With Release 4, DID lines do
not use station ports.
See Table 4-9 for RDDU (DID analog lines) maximum quantities.
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7. Determine RDTU T1 PCB (slot) requirements (loop/ground/Tie/DID lines).
Note Contact the T1 provider (Telco or Carrier company) to determine exact T1 channel/line needs.
8. Determine RDTU PCB (slot) requirements.
Notes
When installing 16 or 24 channel RDTU PCBs into a slot, the next slot or two slots may not be
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usable for other PCBs
RDTU provides either 8, 16, or 24 channels (lines), depending on programming. Each channel
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can be set for either DID, ground start CO, loop start CO, or Tie line operation. (Each RDTU Tie
line or DID line reduces the system line and station port capacity by one port.)
As many as six RDTU PCBs can be installed in systems operating with the RCTUC/D common
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control unit, as many as two with RCTUB operated systems. The RCTUA does not support
RDTU.
Prior to Release 4, each Tie or DID line reduced system station capacity by one port. With
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Release 4, Tie and DID lines do not use station ports.
9. Add totals from Steps 1~7.
Strata DK I&M 5/00
Total analog DID lines (with or without ANI/DNIS) divided by 4
Total Tie lines (with/without ANI/DNIS) (channels)
Total DID lines (with/without ANI/DNIS) (channels)
Total 8-channel RDTU PCB/slots (include skipped slots)
Total 16-channel RDTU PCB/slots (include skipped slots)
Total 24-channel RDTU PCB/slots (include skipped slots)
(Tables 4-4 and 4-5 and Worksheet 2.)
Worksheet 1 – System PCB (Slot) Requirements
Total RDDU PCB slots required
Total loop start lines (channels)
Total ground start lines (channels)
Total RDTU lines required
Total RDTU PCB slots required
Total CO Line PCB slots required
DK424 Configuration
4-25