The BLACK BOX PSFP20AD48S Power Supply Module is a Plug-in Unit for the two middle slots of the RM421A 16 Card Slot Chassis. The BLACK BOX PSFP20A230 Power Supply Module is a Plug-in Unit installed in either slot and will power all 16 Modem Cards in the Chassis. If two power modules are installed, then each can power the chassis and act as aredundant power source. The Power Module converts 48 Volts DC input to +/-15Volts DC and +8.5 Volts DC output for distribution to individual cards. The cards have regulators for convrting the +/- 18 Volts DC to =/- 12Volts DC and +8,5 Volts AC to +5 Volts DC.
Input Voltage: 48 Volts dc +/- 4 Volts DC 3.5 Amps Max.
Output Voltage: +/- 15 Volts DC, + 8.5 Volts DC
Wattage: 150 Watts
Mfg / Model # Description
BLACK BOX PSFP20AD48S Single Power Supply 48 Volts DC for RM421A