Toshiba Strata DK24 Installation And Maintenance Manual page 49

Printed Circuits per
Circuit Printed
Board Circuit Board
1
8/Digital Telephone
PDKU
(requires
(Ports, Digital)
PCTU3
(without PDIU-DI)
or PCTU4)
(with PDIU-DI)
8/Electronic Telephone
1
PEKU
(Ports, Electronic)
8/Standard Telephone
PSTU
(Ports, Standard)
2/Standard Telephone
3
PESU
4/Electronic Telephone
(requires
PCTU2 and
(Ports Standard/
above)
Electronic)
4/CO Line
PCOU
(Lines)
4/TIE Lines
4
PEMU
(Lines)
5
PIOU,
See Table 4-F
PIOUS
or PEPU
NOTES:
1. The appropriate capacities apply to digital and 6500-series electronic telephones only. If other Toshiba electronic
telephones (2000-, 3000-, 6000-) are used, refer to Worksheet 7.
2. The number of digital telephones with PDIU-DIs is limited by the system's power capacity per Worksheet 7. Also, DIUs
are limited to slots 01 ~ 10 in DK96 and cannot be connected to Circuit 8 of a PDKU1 but can be connected to Circuit
1 of 8 of the PDKU2.
3. Normally only one PESU is installed in a system that requires a mix of standard and electronic telephone circuits. A PESU
is installed instead of a PSTU if only one or two standard telephone circuits are needed. It is installed instead of a PEKU
if only four electronic telephone circuits or less are needed. The PESU supports the same stations and options as the
PSTU and PESU do, except for the HDSS console.
4. The maximum number of PEMU PCBs is determined by the system's power supply capacity (caution: do not exceed the
numbers shown); also, if a PEMU is installed in a DK24 with a PCTUS1 PCB, only 16 station ports are available for
stations.
5. Only one type of peripheral interface PCB (PIOU, PIOUS, PEPU) may be installed per system.
TABLE 4-C
UNIVERSAL SLOT/PCB CAPACITIES
PCB Maximum Capacities
(Ports/Lines)
DK24
PCTUS1 PCTU
(1/2/3/4) (1/2/3/4) (1/2/3/4)
3 4
(24) (32)
(N/A) (32)
2
(N/A) (21)
3 4
(24) (32)
3 4
(24) (32)
5
3
(10/20)
(6/12)
4
5
(16)
(20)
1 1
(4) (4)
1
1
4-5
INSTALLATION-CONFIGURATION
SECTION 400-096-204
DK56
DK96
PCTU PCTU
• Digital Telephones
8 12
• DDSS Consoles
• PDIU-DI
(64) (96)
• PDIU-DS
(64) (96)
2 2
• DDCB Door Phone Box
(53) (80)
• Electronic Telephones
• HDCB Door Phone Box
8 12
• HDSS Consoles
• BGM Source
(64) (96)
• EOCU PCB for OCA
• Amplified Conference
• Standard Telephones
• Voice Mail Ports
8
12
• Fax
• Dictation Machine
(64) (96)
• Off-premises Stations
• Other similar devices
8 12
Standard: Same as PSTU
(16/32)
(24/48) Electronic: Same as PEKU
(see Note 3)
7
9
• Central Office
Loop Start Lines
(28)
(36)
2 3 • E&M TIE Lines
– Type I - Signaling
(8) (12) – 2 or 4 wire transmission
– Immediate start
See Table 4-D
1 1
SEPTEMBER 1992
Interface to: