Exchange the PJA or I/O enclosure to microbay power cable

Before you begin

Icon for electrostatic discharge wrist strapUse approved ESD procedures to prevent damage.

Attention:
  • This procedure is not a stand-alone procedure. Customer disruption and damage to the hardware might occur when microcode and power boundaries are not in the proper conditions for this service action.
  • If a serviceable event FRU repair directed you to this procedure, the microcode and power boundaries are already set.
  • If a serviceable event FRU repair did not direct you to this procedure, see MAP1230 Replace a FRU without using a serviceable event.
Notes:
  • All the cables and FRUs to be removed must be uniquely identified so they can be reinstalled correctly.
  • If an installed earthquake resistance kit prevents you from accessing this FRU, refer to MAP1600.

Remove the microbay power cable

Procedure

  1. At the rear of the rack, locate the microbay power cable to be replaced.
    Figure 1. Model 98x direct power junction assembly (direct PJA) locations - E51, E52, E53, and E54
    Model 98x direct power junction assembly (direct PJA) locations - E51, E52, E53, and E54
    Figure 2. I/O enclosure locations (rear) (models 98x, 8xE)
    I/O enclosure locations (rear) (models 98x)
    Figure 3. Microbay location codes
    Microbay location codes
  2. Note the cable connections and the routing of the cable. See Table 1, Table 2, Table 3, Table 4, Table 5, and Table 6.
    Table 1. I/O enclosure to microbay connections (models 980, 98B)
    I/O enclosure connection Microbay connection
    R1-XI3-P1-C7-T10 (left I/O) R1-M10-C2-T6 (right microbay)
    R1-XI4-P1-C7-T10 (right I/O) R1-M10-C1-T6 (left microbay)
    R2-XI3-P1-C7-T10 (left I/O) R2-M12-C2-T6 (right microbay)
    R2-XI4-P1-C7-T10 (right I/O) R2-M12-C1-T6 (left microbay)
    Table 2. I/O enclosure to microbay connections (models 981, 98E) (single-phase power)
    I/O enclosure connection Microbay connection
    R1-XI1-P1-C7-T10 (left I/O) R1-M06-C2-T6 (right microbay)
    R1-XI2-P1-C7-T10 (right I/O) R1-M06-C1-T6 (left microbay)
    R1-XI3-P1-C7-T10 (left I/O) R1-M08-C2-T6 (right microbay)
    R1-XI4-P1-C7-T10 (right I/O) R1-M08-C1-T6 (left microbay)
    R2-XI1-P1-C7-T10 (left I/O) R2-M10-C2-T6 (right microbay)
    R2-XI2-P1-C7-T10 (right I/O) R2-M10-C1-T6 (left microbay)
    R2-XI3-P1-C7-T10 (left I/O) R2-M12-C2-T6 (right microbay)
    R2-XI4-P1-C7-T10 (right I/O) R2-M12-C1-T6 (left microbay)
    Table 3. I/O enclosure to microbay connections (models 981, 98E) (three-phase power)
    PJA connection Microbay connection
    R1-XI1-P1-C7-T10 (left I/O) R1-M04-C2-T6 (right microbay)
    R1-XI2-P1-C7-T10 (right I/O) R1-M04-C1-T6 (left microbay)
    R1-XI3-P1-C7-T10 (left I/O) R1-M06-C2-T6 (right microbay)
    R1-XI4-P1-C7-T10 (right I/O) R1-M06-C1-T6 (left microbay)
    R2-XI1-P1-C7-T10 (left I/O) R2-M08-C2-T6 (right microbay)
    R2-XI2-P1-C7-T10 (right I/O) R2-M08-C1-T6 (left microbay)
    R2-XI3-P1-C7-T10 (left I/O) R2-M10-C2-T6 (right microbay)
    R2-XI4-P1-C7-T10 (right I/O) R2-M10-C1-T6 (left microbay)
    Table 4. PJA to microbay connections (models 984, 985, 986, 84E, 85E, 86E)
    PJA connection Microbay connection
    E51-J11 M04-C1-T6
    E52-J11 M04-C2-T6
    E53-J11 (note 1) M02-C1-T6
    E54-J11 (note 1) M02-C2-T6
    Note 1: PJAs E53 and E54 are not present in models 984 (except all-flash) and 84E.
    Table 5. PJA to microbay connections (model 988)
    PJA connection Microbay connection
    R1-E51-J11 M08-C1-T6
    R1-E51-J12 M04-C2-T6
    R1-E52-J11 M08-C2-T6
    R1-E52-J12 M04-C1-T6
    R1-E53-J11 M06-C1-T6
    R1-E53-J12 M02-C2-T6
    R1-E54-J11 M06-C2-T6
    R1-E54-J12 M02-C1-T6
    Table 6. PJA to microbay connections (model 88E)
    PJA connection Microbay connection
    R2-E51-J11 M12-C1-T6
    R2-E51-J12 M08-C2-T6
    R2-E52-J11 M12-C2-T6
    R2-E52-J12 M08-C1-T6
    R2-E53-J11 M10-C1-T6
    R2-E53-J12 M06-C2-T6
    R2-E54-J11 M10-C2-T6
    R2-E54-J12 M06-C1-T6
  3. Disconnect the cable from the PJA or I/O enclosure and microbay. Loosen the cable ties and remove the cable.

Install the microbay power cable

Procedure

  1. Route the cable exactly as noted above.
  2. Connect the cable to the PJA or I/O enclosure and microbay.
  3. Secure the cable ties.
  4. Ensure that the microbay power LED (next to J5) is lit (solid or flashing) on the attached microbay.
  5. Exit this service information center parts exchange procedure and return to the procedure that sent you here.