Nortel Meridian 1 Manual page 464

Page 426 of 500
553-3001-210 Standard 14.00 June 1999
Appendix B: NT7D10 PDU connections
Connecting power to the NT7D10 PDU
1 To access the field wiring terminal block (TB1) in the bottom of the
pedestal, you must remove the PDU:
• Remove the I/O safety panel in module 0 (bottom module).
• Disconnect the power plug (J1) and the system monitor ribbon cable
between module 0 and the PDU.
Note: To disconnect the power plug, you must press a latch trip on the
front and rear of the plug. You may need to use a screwdriver blade
against the latch trip on the front of the plug.
• If the module has an SDI paddle board installed on the backplane,
temporarily remove the paddle board to avoid damage.
• Disconnect cables from the faceplate of the system monitor.
• Loosen the retaining screws that secure the PDU and pull the unit
out of the pedestal.
2 If a junction box is used, insert the conduit from the junction box into one
of the conduit access holes in the pedestal.
Connect the wires from the junction box to the matching connections on
the terminal block in the pedestal:
• Connect the red wires to BAT 0 through BAT 3.
• Connect the black wires to RTN 0 through RTN 3.
• Connect the remaining wire (orange or white) to LRTN.
Note: If a junction box is used, the connections described in steps 3
through 5 apply to the junction box rather than to the PDU.