Hardware reference guide

Pwr. & Grnding. Guide
742
35013379 11/2011
The following figure shows the single internal POK that relates directly to the
Quantum system POK.
Summable Power Supplies
Four summable power supply models are offered:
A summable power supply may be used as a standalone power supply without
reservation in any Quantum system.
For systems configured with a mix of CPS, NOM, expert, and l/O modules, whose
total current consumption from the backplane exceeds the current provided by one
summable supply, two summable supplies may be used in a single backplane. In
such a system, the total current available on the backplane is the sum of the
capability of both supplies:
z 16 A for two 140CPS11410
z 16 A for two 140CPS21400
z 16 A for two 140CPS41400
z 20 A for two 140CPS11420
z 16 A for one 140CPS11410 and one 140CPS11420
CAUTION
Equipment compatibility.
Standalone units must be the only power supply installed in a backplane. No fault
tolerant or redundant capability exists in systems powered by standalone power
supplies.
In systems powered by a standalone power supply, the internal power supply POK
is provided directly to the Quantum system POK.
Failure to follow these instructions can result in injury or equipment damage.
• 140CPS11410 115...230 Vac input 8 A output
• 140CPS11420 115...230 Vac input 11 A output
• 140CPS21400 24 Vdc input 8 A output
• 140CPS41400 48 Vdc input 8 A output