Power Considerations - Toshiba strata CT Installation & Maintenance Manual

5. Digital and Standard Telephone Station PCBs
6. ISDN BRI Digital Station PCBs
7. Analogue, Tie Lines and VoIP Line PCBs
H 8. ISDN BRI Digital Line PCBs

Power Considerations

C
Table 1-14
Strata CT Primary AC Power Voltage
Input Voltage
AC Frequency
Watts per cabinet (continuous)
Watts for five cabinet system
Strata CT Primary Power Current Consumption (Rating in Amperes)
1 cabinet
2 cabinets
3 cabinets
4 cabinets
5 cabinets
Power Supply Unit (BPSU672)
DC voltage output specification
Strata CT I&M Manual October 2000
N
PDKU, RSTU and PEKU: Each PCB or PCB combination requires one slot. These
PCBs can not occupy a slot that is left vacant to provide capacity for RPTU as shown in
Table 1-13. Each PCB provides up to eight circuits for the type of stations it supports.
N
RBSU with RBSS: Each PCB or PCB combination requires one slot. These PCBs
can not occupy a slot that is left vacant to provide capacity for RPTU as shown in
1-13. Each single PCB provides two BRI circuits and combination PCBs provide four
BRI circuits, for the type of BRI stations it supports. Each ISDN BRI station requires
one BRI circuit.
N
PCOU, PEMU, PACU and BVPU: Each PCB or PCB combination requires one slot.
These PCBs can not occupy a slot that is left vacant to provide capacity for RPTU, as
shown in Table 1-13. Each PCB provides up to four circuits for the type of lines it
supports.
N
RBSU with RBSS: Each PCB RBSU/RBSS PCB requires one slot. These PCBs can not
occupy a slot that is left vacant to provide capacity for RPTU as shown in
Only the RBSU PCB provides 2 BRI circuits (four lines). Each ISDN BRI circuit
provides two lines for the CT system.
Each Strata CT Base and Expansion Cabinet houses a power supply that furnishes power to
all of the stations and some of the peripherals that interface with the cabinet (see
Strata CT Electrical Characteristics
115VAC±10V or 208VAC±20V or 240VAC±20V
50/60 Hz, Single-phase
180
900
-24VDC (-26.3~-27.8VDC, 6.0 DC amps. )
+5VDC (+4.5~5.5VDC, 4.0 DC amps.)
-5VDC (-4.5~-5.5VDC, 0.8 DC amps.)
Strata CT Configuration
Table
Table 1-13.
Table 1-14).
240VAC
2.0 amps.
4.0 amps.
6.0 amps.
8.0 amps.
10.0 amps.
1-19