Toshiba DK8, DK 16 manual Station Considerations, Telephone Circuit Port Types

INSTALLATION-CONFIGURATION

SECTION 100-816-203

MARCH 1993

TABLE 3-E

DK16 EXPANSION KEY SERVICE UNIT PCBs

PCB	Circuits per PCB		Interfaces	Connector
PDKU	8 digital telephone	•	Digital telephones with or	25-pair amphenol
	circuits		without PDIU-DI2 or ADM
		• DDSS console
		• PDIU-DSs
		• DDCB
PEKU	8 electronic telephone	•	Electronic telephones	25-pair amphenol
	circuits	•	HDSS console
		• BGM source
		• EOCU PCB for OCA
PSTU	8 standard telephone	•	Standard telephones	25-pair amphenol
	circuits	•	Voice mail ports
		• Background music source
		•	Off-premises stations
		•	Other similar devices
PESU	2 standard telephone/	Standard: same as PSTU		25-pair amphenol
	4 electronic telephone circuits	Electronic: same as PEKU
	(standard/electronic	except PESU does not
	telephone ports)	support HDSS console
PCOU	4 CO line circuits	•	Central Office loop start	RJ14C modular
	(lines)		lines

KCDU	2 CO line circuits/	•	Central Office loop	RJ14C Modular
	4 digital telephone circuits		start lines	(CO Line circuits)
		•	DKT circuits same as	25-pair amphenol
			PDKU, except no DDSS	(digital telephone circuits)
PIOU,	See Table 3-D	See Table 3-D		25-pair amphenol (PIOU)
PIOUS				Spring clip terminal (PIOUS)

3STATION CONSIDERATIONS

3.00For configuration purposes, a station can be considered as any device which is connected to a dedicated telephone circuit. Although the words "telephone" and "station" are often used synony- mously and interchangeably in STRATA DK8/ DK16 documentation, devices other than tele- phones—such as Stand-alone Data Interface units (PDIU-DSs)—should also be considered as sta- tions when configuring a system, because they require a dedicated telephone circuit. A station apparatus overview is shown in Table 3-G (for STRATA DK8) and Table 3-H (for STRATA DK16).

3.10Telephone Circuit (Port) Types

3.11There are three types of telephone circuits to which stations can be connected: digital telephone circuits, electronic telephone circuits, and stan- dard telephone circuits. All three types of circuits are available with the STRATA DK16. The STRATA DK8 does not support electronic telephone cir- cuits.

3.20Digital Telephone Circuit Connections

3.21The STRATA DK8 Key Service Unit provides four digital telephone circuits. The QCDU PCB provides two.

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