Cisco NCS 1004 Hardware Installation Manual page 39

Install Cisco NCS 1004
Figure 35: NCS 1004 Ground Lug
1 Lug
2 Screws used for the lug
The orientation of the lug cable is always at the bottom side.
For ETSI racks, 180-degree lugs are used to maintain the chassis footprint of 600 mm.
Ensure a gap of 50 mm below the chassis for routing the cables.
Note
Step 4 Tighten the M5 pan-head screw (48-1169-01) to a torque value of 3.1 N-m.
Step 5
Attach the other end of the shelf ground cable to the bay frame using a dual-hole lug connector according to the equipment
rack frame specifications.
Power Supply
The NCS 1004 has two slots for 2.1kW AC redundant Power Supply Units (PSU). Both the PSUs must be
installed in the chassis at all times, except during replacement. When only one PSU is inserted in the chassis,
the Power Module Redundancy Lost major alarm is raised.
PSU power de-rating and option table , including ambient temperature details are here. The power details are
for input power.
• AC high voltage range input - 2100 W upto 40-degree C for 1 PSU; 2100 W upto 55-degree C for 2
PSUs (for a short duration, as specified by Telcordia GR-63-Core).
Hardware Installation Guide for Cisco NCS 1004
Power Supply
37