Toshiba DK8 Summary of ELECTRICAL/ENVIRONMENTAL Characteristics, KSU Grounding Diagram, General

INSTALLATION-SITE REQUIREMENTS

SECTION 100-816-202

MARCH 1993

TABLE 2-A

SUMMARY OF ELECTRICAL/ENVIRONMENTAL CHARACTERISTICS

GENERAL

Primary power
Input AC	85 ~ 135VAC
AC frequency	50/60 Hz
Power	DK8-46 watts maximum, DK16-75 watts maximum
Environmental specifications
Operating temperature	32 ~ 104°F (0 ~ 40°C)
Operating humidity	20 ~ 80% relative humidity without condensation
Storage temperature	- 4 ~ 158°F (-20 ~ 70°C)
Power supply	DK16		DK8
DC voltage output			+24VDC: (+26.3 ~ +27.8VDC)
	–24VDC: (–26.3 ~ –27.8VDC)
specification	+5VDC: ( +4.5 ~	+5.5VDC)	+5VDC: ( +4.5 ~ +5.5VDC)
	–5VDC: ( –4.5 ~	–5.5VDC)	Note: +5V converter
			on KSU PCB
Battery charger characteristics	Charger: current limiting
(DK16 only)	Nominal float voltage: 2.275 volts/cell
	Charge current: 0.7 amps maximum
	Battery discharge cut-off voltage: 20.5 ± 0.5VDC
QSTU, KSTU, PSTU or PESU (circuits 1 & 2)	Square wave output with high/low option jumper:
Ring voltage	Low position, 130 ± 20VDC peak–to–peak (no-load)
	High position, 190 ± 25VDC peak–to–peak (no-load)
Ringing capability	Two ringers maximum per circuit, high or low position

GROUND 1 THIRD WIRE GROUND
	TO AC POWER CORD
THIRD WIRE	DK8 OR DK16 KSU
AC GROUND
	POWER
	SUPPLY
A
ELECTRICAL
SYSTEM GROUND
	FG

FIGURE 2-4

KSU GROUNDING DIAGRAM

2)Connect the meter probes between the two main AC voltage terminals (white and black wires) on the wall outlet. The reading obtained should be between 100 ~ 120 VAC.

3)Move one of the meter probes to the third terminal (green wire ground). Either the same reading or a reading of zero volts should be obtained.

4)If the reading is zero volts, leave one probe on the ground terminal and move the other probe to the second voltage terminal.

CAUTION!

If a reading of zero volts is obtained on both voltage terminals (white wire to green wire, black wire to green wire), the outlet is not properly grounded. Omit steps 5 and 6, and proceed directly to step 7.

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