The following are provisioning rules for fuse placement apply to FAP P/N870-2804-xx:

• Maximum fuse size 3 amp.

• Fuse positions 19 and 20 not used.

• Power feed must originate from the same power source.

• Fuse and Alarm Panel Shorting board in bypass mode must be less than 40 amp per distributed output side.

These provisioning rules for fuse placement apply to FAPs P/N 870-1606-xx and P/N 870-2320-xx.

• Maximum fuse size 3 amp for Fuse one through Fuse 18 when P1, P2, or P3 are used for power output

• P2 cannot be used if the Terminal Strip (output) position 12 is used.

• P3 cannot be used if the Terminal Strip (output) position 18 is used.

• Fuse maximum of 15 amp for fuse positions 12, 18, 19, and 20, all other fuse positions are 3 amp.

  Note:

  For fuse locations 12, 18, 19, and 20, the fuse maximum is 10 amp when adjacent locations are used.

• Power feed must originate from the same power source.

• Fuse and Alarm Panel, Jumper Board (P/N 870-1641-01) fuse size on boards 40 amp per side for P/N 870-1606-02 Rev A and B, and for P/N 870-2320-01 Rev A through I. Fuse size on boards 60 amp per side for P/N 870-1606-02 Rev C and 870-2320-01 Rev J.

• Fuse and Alarm Panel, Jumper board in maintenance mode must be less than 40 amp per distributed output side.

1. Apply the cable tags provided with the system to both ends of the supply and return cables.
2. Ensure that power is off at the central office power distribution board for the circuits being wired.
   Use a multimeter.
3. Remove the clear plastic cover from the back of the fuse and alarm panel.
4. Run, form, and dress the cable from the power distribution board, over the cable racks, to the fuse and alarm panel.
5. Strip the cable ends, slide a one-inch length of clear heat-shrink tubing over and past the portion of stripped cable.
6. Apply non oxidizing grease to the stripped end of the cable, and install the lug.
   The stripped cable must fill lug completely to the end of the barrel of the lug and be visible in the end window of the lug.

   Figure 5-14 Lug Installation

   

   Note:

   Input Power and RTN use straight, two hole lugs, 1/4-inch hole on 5/8-inch centers, long barrel with window (P/N 804-0817-02).
7. Double crimp the lugs onto the cable end using the embossing crimper.
8. Slide the one-inch length of clear tubing over the crimped lug and heat-shrink the one-inch length of clear tubing.
9. Fasten the lugs of the cables to the respective A-side and B-side -48VDC and RTN points on the FAP. Refer to Figure 5-15 and Figure 5-16.

   Figure 5-15 1U Fuse and Alarm Panel Rear (P/N 870-2804-01)

   

   Figure 5-16 3U Fuse and Alarm Panel Rear (P/N 870-2320-03))

   
   

   

   
   

   Tighten the lugs to:

   • 1U FAP, torque to 50 inch-pounds
   • 3U FAP, torque to 25 inch-pounds
10. Verify correct connection with a multimeter by running continuity check.
11. Replace the clear plastic cover on the back of the fuse and alarm panel.
12. Secure the power cables to the cable rack with lacing cord.

    Note:

    Where the cable leaves the cable rack, the cable must be protected with fiber paper throughout the system.

1. Install the continuous ground conductor to the Ground Window. Run the conductor the length of the equipment lineup (see the figure below).
   The separate #6 American Wire Gauge (AWG) cable ground that runs to each frame will allow removal of a frame from the lineup without interrupting the grounding of other frames in the lineup.
2. Install the branch ground conductor to the frame using screws and washers.
   The continuous aisle ground conductor will be H-tapped to the branch (see the figure below). Torque screws to 45 inch-pounds.

   Figure 5-17 System Frame Grounding

   
   
   
3. Secure the cable to the cable brackets with lacing cord.
4. Cables must be labeled, 145P tags should have “TO” and “FROM” location information.
   Example: FROM MGB (Main Ground Bar), TO system ground bar Control Frame, CF00.
5. DO NOT “double lug”: The practice of using one bolt through a lug and the ground bar, and through another lug on the other side of the ground bar, held in place by one nut.
6. A bolt through any nut must show at least two threads beyond the nut but no more than four threads should be showing.

1. Run the 1/0 ground cable from the central office Main Ground Bar (MGB) over the cable rack horns to the system Control Frame, CF-00.
2. At the control frame end of the cable:
   1. Cut the 1/0 Green Ground Cable (P/N 690-0108-R07) to length and strip the end.
   2. Slide the clear heat-shrink (P/N 804-0229-01) on the cut and stripped end of the cable.
      Move the heat-shrink past the stripped portion of the cable to allow access to the uncovered wire.
   3. Apply a thin coat of non oxidizing grease to the stripped end of the cable.
   4. Slide the 1/0 pink lug (P/N 804-0977-R01) to the stripped cable.
      Secure the lug to the cable by double crimping the barrel of the lug using a crimping tool with embossing dies. The stripped cable must fill lug completely to the end of the barrel of the lug and be visible in the end window of the lug.
   5. Slide the heat-shrink down over the barrel of the lug and the cable.
   6. Use a Heat-shrink gun (hot air blower) to shrink the clear heat-shrink to the barrel of the lug and cable.
3. Secure the cable to the cable rack horns with lacing cord.

   Note:

   Tie-wraps are not allowed on the top frame horn or above. On the top horn/bracket and above use only lacing cord.
4. Apply a small amount of non oxidizing grease to the mounting holes on a copper system ground bar where the lug contacts the ground bar; on a tinned ground bar non oxidizing grease is not needed.
5. Install the ground cable lug using the 3/8-inch # 6 copper-plated hardware provided.
   Use the attachment sequence shown in Figure 5-18.

   Figure 5-18 System Logic Grounding

   
   

   

   
   

   .
6. Tighten the bolts to 15.5 foot-pounds of torque.
7. Use the lacing cord to secure a “DONOTDISCONNECTLEAD” tag at each end of the cable, just beyond the lug.

   Note:

   System Ground: 1/0 cable from the system ground bar to the “I” section of the ground window. If no ground window exists, the customer will designate the termination point.

   Note:

   Frame Ground: A cable #6 AWG from a frame is H-tapped into 1/0 cable and also terminates on the “I” section of the ground window.

   Note:

   The size of the cable is determined by the overall length of the cable run. Refer to the Site File Book.

   Figure 5-19 Clamp Reading on System Frame and Logic

   
   

   

   
   

1. Place a clear heat-shrink on the cable.
2. Butt, strip the end of the cable, and apply a small amount of non oxidizing grease to the conductor.
   The stripped cable must fill lug completely to the end of the barrel of the lug and be visible in the end window of the lug.
3. Crimp #6 American Wire Gauge (AWG) lug with window on the cable, using an embossing crimper.
4. Apply a small amount of non oxidizing grease to the mounting holes on a copper system ground bar, Non oxidizing grease is not needed on a tin ground bar, where the lug contacts the ground bar.
5. Crimp a #6 AWG lug with a window on the cable.
   Use an embossing crimper. The stripped cable must fill lug completely to the end of the barrel of the lug and be visible in the end window of the lug.

   warning:

   All logic ground connections must be made to the system ground bar.

   Figure 5-20 System Logic Ground Bar and Cable

   
   

   

   
   

   Note:

   It may be necessary to drill the central office ground window bar to accept the 3/8-inch bolts on one-inch centers. Apply the 145P cable tags (see Figure 5-24) provided to both ends of the ground cable, including the “Do Not Disconnect”.
6. Install the logic ground cable lugs P/N 804-0817-R02 using the 1/4-inch 20 copper-plated hardware provided (refer to Figure 5-20).
   Tighten the bolts to 68 inch-pounds.

   Figure 5-21 System Logic Grounding

   
   

   

   
   

   Note:

   The only ground cables that are terminated to the system ground bar are the logic grounds from the fuse and alarm panel.

   Note:

   DONOT run Logic Ground or Power Cables on the cable horns in the top middle of a frame. The horn is for Row Alarm Cables only.

   warning:

   All logic ground connections must be made to the system ground bar.
7. Repeat steps 2, 3, and 4, on the fuse and alarm panel end.

   Note:

   1U FAP: On the frame, use straight, two hole lugs, 1/4-inch hole on 5/8-inch centers, long barrel with window (P/N 804-0817-02). The FAP Chassis GND and Logic GND use 90-degree, 2-hole lug, 1/4" hole on 5/8-inch centers, long barrel with window (P/N 502-0081-02).

   Note:

   All other FAPs: #6-gauge lug (P/N 502-0085-R01) must be used on the fuse and alarm panel end of the cable.
8. Terminate the fuse and alarm panel end of the cable on the terminal strip at the position marked LOGICGROUND.

   Figure 5-22 1U Fuse and Alarm Panel Rear (P/N 870-2804-01)

   

   Figure 5-23 3U Fuse and Alarm Panel Rear (P/N 870-2320-03))

   
   

   

   
   
9. Tighten the nuts on the fuse and alarm panel.
   Tighten the lugs to:

   • 1U FAP, torque to 50 inch-pounds.

   • 3U FAP, torque to 25 inch-pounds.

1. Run green cable, #6 AWG (P/N 690-0131-R01).
2. Butt, strip, and apply non oxidizing grease to conductor.
   The stripped cable must fill lug completely to the end of the barrel of the lug and be visible in the end window of the lug.
3. Place clear heat-shrink on butted end of wire below stripped end.
4. Place lug onto the stripped end of the cable and crimp the lug using embossing dies.
   The stripped cable must fill lug completely to the end of the barrel of the lug and be visible in the end window of the lug.

   Note:

   Terminal lug (P/N 804-0817-R02) must have two holes and with a window. The stripped cable must fill lug completely to the end of the barrel of the lug and be visible in the end window of the lug.
   1. To install the cable on the system ground bar, wipe a small amount of non oxidizing grease at the mounting hole.
      Attach the lug with the 1/4-inch #20 copper-plated hardware provided. Torque to 68 inch-pounds.
   2. Secure the cable to cable rack horn using lacing cord.
   3. Label each cable TO ____ and FROM ______ for later use.

      Figure 5-24 Ground Bar and Logic Ground Installation

      
      

      

      
      
5. Cables must be labeled: 145P tags should have “TO” and “FROM” location information.
   Example: TO system ground bar Control Frame, CF00FROMMGB (Main Ground Bar),.
6. DONOT “double lug”: The practice of using one bolt through a lug and the ground bar, and through another lug on the other side of the ground bar, held in place by one nut.
   A bolt through any nut must show at least two threads beyond the nut but no more than four threads should be showing.

   Figure 5-25 System Logic Ground Connection

   
   

   

   
   

   Figure 5-26 Alarm Cable Arm

   
   

   

   
   

   Note:

   The alarm cable arm is for alarm cable which maybe a clock cable.