Worksheet Examples - Toshiba Strata DK14 Installation And Maintenance Manual

Worksheet Examples

Table 2-23 DK40i Telephone/Device 24 Volt Power Factor Worksheet Example (Base/Expansion KSU)
Telephone Devices
2000-series Digital Telephone (any series)
Cordless Digital Telephone (DKT2004-CT)
2000-series Electronic Telephone
3000-series Electronic Telephone
6000-series Electronic Telephone
6005-series Electronic Telephone
6500-series Electronic Telephone
DDCB/HDCB (w. MDFB)
DDSS/HDSS Console
Add-on Module
RPCI-DI
PDIU-DI2 and PDIU-DS
Standard Telephone (-48VDC)
Standard Telephone (-24VDC)
Power Failure Unit (DPFT)
HHEU
Stratagy DK
Note It is not necessary to consider the 5 volt PF for telephone devices.
Table 2-24 DK40i PCB and Power Factors Worksheet Example
In the following example, the total DK40i PFs, 10.2 PF for the +5VDC PF category and 26.5
TPSU16 maximum +5VDC PF = 14; Maximum -24VDC PF = 39.
Base PCBs
K5RCU2
K5RCU
K4RCU3
TSIU
TCOU
TBSU
KSTU2
TDDU
TCIU
Expansion Unit PCBs
Slot 15
Slot 16
Slot 17
Slot 18
Telephone Devices from
1. Power factors are within limits. If power factors are exceeded, the system size must be reduced to stay
within PF limits.
Strata DK I&M 5/99
Quantity
16
8
Total -24VDC PF all Telephone Devices
PCB Installed
Yes
X
X
X
PCB Name
RBSU (2TE)
RBSS (2NT)
KCDU
KCDU
Table 2-23
N/R
Total DK40i PF =
Worksheet 2 – System Power Factor Check
X 24VDC PF = 24VDC Total
X 1.0 =
X 1.0 =
X 2.0 =
X 2.5 =
X 2.0 =
X 2.0 =
X 1.0 =
X 1.2 =
X 0.8 =
X 0.4 =
X 0.5 =
X 0.8 =
X 1.0 =
X 0.5 =
X 3.0 =
X 0.1 =
X 1.0 =
=
+5VDC PF -24VDC PF
No
0.6
X
X
X
X
2.5
1.0
X
X
2.5
0.6
1.5
1.5
N/R
1
10.2
DK40i Configuration
16.0
4.0
20.0
NR
NR
NR
NR
NR
NR
NR
NR
NR
3.8
0.3
1.2
1.2
20.0
1
26.5
2-17