Worksheet
-
System P
CB (Slot) Requirements (continued)
-
Total RDSU PCBs
C4. Determine Station PCBs Slots Required (Refer to Table 1-2 for PCB information)
four
standard
ports
C4.1
C4.2
c4.3
-
6
(round
up)
DIGITAL PORTS (from
47
Total PDKU PCBs
=
8
8
(Refer to C4.3 before
finalizing this number)
Total PDKU PCBs (Slots)
General Notes:
PDKU provides eight digital telephone ports (circuits). Circuit 5 (when associated with ports
004, 012, 020, and 028) can only interface with a DDCB. Circuit 8 can only interface with a
DDSS console (see Table 1-6).
The
can also be used. The
can only support Data Interface Units
on
circuits
1
-
7,
while the
can support DIUs on all eight circuits. See Worksheet 2,
Table 1-8 (Example) for slot limitations.
-
(round up)
STANDARD PORTS (from C2)
7
Total RSTU PCBs
=
8
8
Total
RSTU PCBs
(Slots)
=
General Notes:
The
or PSTU
1
can also be used. These earlier version PCBs can interface with the
same devices that the RSTU can, but they have different ring generators and cannot support
MW. See the
section in Chapter 4-Printed Circuit Boards for more details.
The RSTU provides eight standard telephone ports (circuits). Circuit 2 only can connect
to a separate Background Music (BGM) source. The RSTU can be equipped with an
to
extend the loop length of the RSTU from 600 ohms to 1200 ohms (see Table 1-4).
is required to operate message waiting lamps on a standard telephone.
Total RSTS PCBs
0
adds two standard
ports
to RDSU
General 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 RSTU can be equipped with an
to extend the loop length
of the RSTU standard telephone ports from 600 ohms to
1200 ohms (see Table 1-4).
ELECTRONIC PORTS
(from
8
8
Total PEKU PCB Slots =
(Refer to C4.5
before finalizina
Total PEKU PCBs (Slots)
=
this number)
General Note:
PEKU provides eight electronic telephone ports (circuits). Circuit
5
(when associated with ports
004,
020, or 028) can only interface with an HDCB. The HDSS
requires two
circuits, circuits 7 and 8, on a PEKU (see Table 1-6). Each conference amplifier requires
use of
circuits
2
and
3
of
a PEKU.
1-18
January
1996
Содержание Strata AirLink DK280
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