User manual

ADCP-75-154 • Issue 3 • August 2006

Page 9

2.3.2 Installation of PDU Cables

There are three PDU cables: the ground cable, the alarm cable, and the power cable. Figure 9

shows the cable terminations on the front of the PDU. Connect the cables as follows:

Figure 9. Cable Terminations on Front of PDU

(Left to Right: Power Cable, Alarm Cable, Three MHU Cables, Ground Cable)

1. Connect the ground cable under the grounding screw on the PDU front panel. Connect the

other end of the cable to the site grounding pole.

2. Connect the alarm cable leads to the base station or site alarm system. Use either

“Normally Open” or “Normally Closed” contacts. Figure 10 shows the PDU alarm logic

3. Connect the other end of the alarm cable to the PDU “ALARM” connector.

4. Connect the power cable to the site DC power connector. (The power cable has three leads.

Red is positive, Black is negative, and Yellow/Green is for ground.)

5. Connect the power cable to the “INPUT” connector on the PDU front panel.