Connecting -48 Vdc Power; Figure 2-8 - Power Plug Connections For Single ("A") And Dual ("A" And "B") Power Sources - Hatteras HN4000 Hardware Installation Manual

2-8
Installing the Ground and Power Cables

2.6.2 Connecting -48 VDC Power

The HN4000 can be powered from one or two ‐48 VDC power sources. If two power sources
are used, the HN4000 will continue to operate normally if one of the sources fails.
The power connector has four pins ‐ two pins for each of the two ‐48 VDC power sources that
can be connected to the device.
Take the following steps to install and connect a ‐48 VDC power source (or sources) to an
HN4000.
Step 1. If the panel providing the ‐48 VDC source is equipped with a circuit breaker, move
the breaker to the OFF position. If the panel is equipped with a fuse, remove the
assigned fuse.
Step 2. Referring to Figure
provided 4‐pin power plug.
a. Strip approximately 1/8" (0.32cm) of insulation from the ‐48 VDC cable's two
b. Insert the tinned end of the cable's ‐48 VDC lead into pin 1 of the 4‐pin power
c. Insert the tinned end of the cable's return (RTN) lead into pin 2 of the 4‐pin power
Figure 2‐8 Power Plug Connections for Single ("A") and Dual ("A" and "B") Power Sources
HN4000 Hardware Installation Guide
2‐8, take the following steps to connect the ‐48 VDC cable to the
HN4000 power conductors must be 14 - 18 AWG (1.6 - 1.0 mm) copper wire.
Note
leads and tin them.
plug. Tighten the pin's clamping screw with a 1/8" flat‐blade screwdriver. (This
lead will connect to the "A ‐48" pin of the HN4000's power connector.)
plug and tighten the pin's clamping screw. (This lead will connect to the "A RTN"
pin of the HN4000's power connector.)
920550-5020 Rev 14