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

6.2.7 ACCESS B ENABLE Switch with SELECT Indicator
The ACCESS B ENABLE switch is an alternating action pushbutton that is found on both singleaccess
drives (Port A or Port B) and drives containing the dual-access option (Port A and B).
6.2.7.1 Single-Access Drive (B) - If the B port is configured for single access (i.e., the M7706 Interface
and Timing module is in Slot 2 of the drive card cage) and the switch is initially pressed, bidirectional
communication with the controller is enabled via Port B. Under these conditions, when the drive is
selected by the controller, the SELECT B indicator is illuminated. When the switch is again pressed
(released), access by the controller is disabled and the SELECT B lamp cannot be illuminated.
6.2.7.2 Dual-Access Drive (A and B) - If the ACCESS B ENABLE switch is independently pressed on
a dual-access drive, the operations performed are similar to those previously described. However, if
both the ACCESS B and ACCESS A switches are initially pressed, arbitration logic will determine, on
a priority basis, which port (B or A) will be accessed by its associated controller (B or A).
6.3 OPERATING PROCEDURES
This material describes RK06K and RK07K Cartridge loading and cycle-up procedures that are required
to place an RK06 or an RK07 Disk Drive on-line. The procedure assumes that ac power is
available (red indicator lamp on the rear panel circuit breaker is on), the ac circuit breaker is on
(blower motor is energized), and the STOP indicator lamp is illuminated on the control panel. If these
conditions are met, initiate the following.
6.3.1 RK06K and RK07K Cartridge Loading
NOTE
An RK06K Cartridge may not be used on an RK07
Drive, and an RK07K Cartridge may not be used on
an RK06 Drive.
1. Depress the drive lid release bar and raise the lid (Figure 6-2).
2. Prepare an RK06K or an RK07K Cartridge (Figure 6-3) for loading as follows:
a. Lift the cartridge by grasping the top cover handle with the right hand (Figure 6-4).
b. Support the cartridge with the left hand by holding the protection cover handle (Figure
6-5).
c. Lower the top cover handle and push the handle slide to the left with the thumb of the
right hand. Again raise the handle to its full upright position to release the protection
cover (Figures 6-4 and 6-5).
3. Lift the cartridge from the protection cover and place it in the drive shroud with the top
cover handle recess facing the rear of the machine (Figure 6-6).
4. Rotate the top cover handle a few degrees clockwise and counterclockwise to ensure that the
shroud locating studs are properly seated within the cartridge housing detent slots.
5. Gently lower the top cover handle to a horizontal position to engage the drive spindle, and
place the protection cover over the top cover (Figures 6-7 and 6-8).
6. Close the lid.
6-4