Step 6: Determine Base Station Power Supply; Step 7: Connect Power Supply; Step 8: Use Proper Power Factor (Pf) - Toshiba Strata AirLink Installation Manual

RWIU System Installation

Step 6: Determine Base Station Power Supply

CAUTION!
o Do not use current-limiting (fuse style) primary protectors on the transmit and
receive pairs between the RWIU and Base Stations.
o Do not connect the RWIU to power at this point.
Step 6: Determine Base Station Power Supply
A Base Station can receive input (line) power from the RWIU or an optional local power supply.
Using a local power supply increases the distance Base Stations can be located from the RWIU.
Customers with 220VAC outlets can:
o Purchase another power cord to fit the universal connector (three-pronged IEC 320 power
inlet) on the power supply
o Replace the 110VAC plug on the cable with an appropriate 220VAC plug
Connect a North American 220VAC adapter to the 110VAC plug
o

Step 7: Connect Power Supply

The maximum available PBX power for each RWIU PCB is one amp (+5VDC).
1. Use the external power supply (see
increase the amps for each Base Station.
The power supply has a -40VDC power connector
for direct connection to the RWIU.
2. Connect to 110VAC power, but do not power on.
Step 8: Use Proper Power Factor
(PF)
➤
Check the +5VDC PF using
Calculation examples are shown in
17.
The maximum voltages for the RPSU280A
Note
Power Supply are 25.0 (+5VDC) and 65.0
(-24VDC).
48
Figure 27) to
Table 15 as a reference.
Tables 16 and
DC IN
Backup
Batteries
24VDC
DC OUT
RWIU - 40 VDC
Power Connector
40VDC
DC OUT OK
AC/DC OUT
OK
DC/DC OUT
OK
AC IN
110VAC
Power Cord
Figure 27 RWIU Power Supply
Strata AirLink Installation Guide
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