Station Pcbs/Slots Required - Toshiba DK14 Installation And Maintenance Manual

Station PCBs/Slots Required

1. Total digital ports divided by 8 (round up) =
Notes
PDKU2 provides eight digital telephone ports (circuits). Circuit 5 (when associated with ports
G
004, 012, 020, and 028) can only interface with a DDCB. Circuit 8 can only interface with a
DDSS console (see
The PDKU1 can also be used. The PDKU1 can only support Data Interface Units (DIUs) on
G
circuits 1~7, while the PDKU2 can support DIUs on all eight circuits. See
for slot limitations.
2. Total standard ports divided by 8 (round up) =
Notes
The PSTU2 or PSTU1 can also be used. These earlier version PCBs can interface with the
G
same devices that the RSTU can, but they have different ring generators and cannot support
MW. See the RSTU/PSTU section in Chapter 9 – Universal Slot PCBs for more details.
The RSTU2 provides eight standard telephone ports (circuits). Circuit 2 only can connect to a
G
separate Background Music (BGM) source. The RSTU can be equipped with an R48S to
extend the loop length of the RSTU from 600 ohms to 1200 ohms (see
RSTU2 is required to operate message waiting lamps on a standard telephone.
G
3. Are four or less digital or standard ports needed?
If so, RDSU (RSTS) can be used.
Note RDSU provides two standard telephone ports (circuits) and four digital ports (circuits) in its basic
configuration. The optional RSTS can be attached to the RDSU to provide two more standard
telephone ports. The RSTU2 can be equipped with an R48S to extend the loop length of the
RSTU2 standard telephone ports from 600 ohms to 1200 ohms (see
4. Total electronic ports divided by 8 (round up) =
Note PEKU provides eight electronic telephone ports (circuits). Circuit 5
(when associated with ports 004, 012, 020, or 028) can only interface
with an HDCB. The HDSS consoles requires two PEKU (see
4-20). Each conference amplifier requires use of circuits 2 and 3 of a
PEKU.
5. Are four or less electronic ports or two or less standard ports needed?
If so, PESU can be used
Note PESU provides two standard telephone ports (circuits) and four electronic telephone circuits
(ports). Circuit 5 (when associated with Ports 004, 012, 020, and 028) can only interface with an
HDCB (see Table 4-20).
6. Add totals from Steps 1~5
Strata DK I&M 5/00
Page 4-18).
Worksheet 1 – System PCB (Slot) Requirements
Total PDKU2 PCB slots required
Table 4-20 (example)
Total RSTU2 PCB slots required
Table 4-17).
Total RDSU PCB slots required
Total RSTS PCB slots required
Table 4-17).
Total PEKU PCB slots required
(Refer to Step 5 before
Table
finalizing this number.)
Total PESU PCB slots required
Total Station PCB slots required
DK424 Configuration
4-23