RK06/RK07 Disk Drive User's Manual - Trailing-Edge

10. For the last drive, connect a drive bus terminator (PN-70-12293-0-0) to I/O 12 (Figure 4-7).
NOTE
For the dual-controller cabling configuration (Figure
4-7), the installation of the drive bus cable should follow
the above sequence. The drive connectors used
are J3 (8 IN) and J4 (8 OUT). A second drive bus
terminator (PN-70-12293-0-0) must be connected to
J4 (8 OUT) of the last drive. The second controller
may be mounted in the same expander box as the
first or in another cabinet altogether. If the same box
is used, a second transition connector is mounted in
the cabinet to accommodate the second drive bus
cable.
11. Ensure that circuit breaker CBl is OFF. Connect the power cable to a power outlet whose
voltage and frequency meet the requirements of the drive model (Figure 4-6).
12. Insert the proper drive-select plug into the unit select jack of the operator control panel
(Figure 4-6). Table 4-5 lists the part numbers for each of the eight drives in the daisy chain
configuration.
Table 4-5 Unit-Select Plugs for RK06/RK07 Disk Drives
Plug No. Part Number
o 12-12691-0
1 12-12691-1
2 12-12691-2
3 12-12691-3
4 12-12691-4
5 12-12691-5
6 12-12691-6
7 12-12691-7
4.4 INSTALLATION CHECKS AND ADJUSTMENTS
To verify performance and adjust the disk subsystem:
1. Check controller power supply voltage.
2. Check drive power supply voltage.
3. Check head load/unload.
4. Check head alignment.
5. Check response to abnormal conditions.
The required actions are detailed in Paragraphs 4.4.1 through 4.4.5.
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