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TC1631R/S
User's Manual
Rev. 1.6
Appendix C
19" Rack with Dual Power Cards
The picture shows the 19" rack with dual power supply cards. It consists of two subassemblies; TCRM192-
D-48 which is the 19" rack with dual 48VDC to 12VDC power cards and the TCRM192-BKPL, which is
the power back plane. The power card can be ordered for universal AC input or 24VDC input. The output
of each kind of power card is 12VDC, different input voltage has different output power rating. They are
listed as following:
TCRM192-D-48: 19" rack with dual power cards, each has 48VDC(36-75VDC) input, 12VDC output and
150 Watts.
TCRM192-D-24:
Same as above but with 24VDC(18-36VDC) input, 12VDC output and 100 Watts output
power.
TCRM192-D-01:
19" rack with dual power cards, each has universal AC input (90VAC to 240VAC, 50Hz
to 60Hz) with 12VDC output. Maximum output power is 65 Watts. The diagram on the next page shows
the equivalent circuits.
The add-on subassembly to the 19" rack is TCRM-bkpl, which is a power strip PCB connected to both power
cards via two pair cable assembly. This power back plane has built-in fuses and power indicators to ease
installation and troubleshooting.
Fuse A,B
for primary
power card
48(24)VDC input
for primary
power card
48(24)VDC input
for secondary
power card
AC power input
for secondary
power card
AC power input
for primary
power card
Fuse A,B
for secondary
power card
Power indicators
for power A,B
Primary power card
Secondary power card
Power indicators
for power A,B
