Lucent Technologies Release 6 manual DC Power and Ground J58890CF Only

DEFINITY Enterprise Communications Server Release 6	Issue 5
Installation and Test for Multi-Carrier Cabinets 555-230-112	May 1998
1 Install and Connect Cabinets
Connect DC Power and Ground	Page 1-18

DC Power and Ground (J58890CF Only)

Figure 1-7 shows a typical power and ground layout for a DC-powered cabinet. The size of the wire required for the -48 volt DC and -48 volt return must ensure the -48 volt DC supplied by the battery plant is maintained between -42.5 and -54.2 volts DC at all times for proper operation and to prevent hardware damage. This procedure applies to both PPN and EPN cabinets.

Figure 1-7. Typical Power and Ground for a DC-Powered Cabinet