2.6 INST ALLA TION .1 BAII-L Installation
2.6.2 BAII-A Installation
The BA ll-AA, -AB mounting box is designed to be installed within a standard 48.26 cm (19 in) rack or cabinet on slide-mounting assemblies as shown in Figure 2-7.
A slide kit is available (part no. 12-16971) and includes one each of the following items: left and right index plates and mounting hardware; left and right slide assembly and mounting hardware; and a BAII-A top cover.
The index plates supplied with the kit are to be mounted onto the sides of the BAII-AA, -AB mounting box and permit the box to be tilted on the slides for servicing.
NOTE:
o
,0 01
10 10
\I
SLIDE AND SLIDE INDEX PLATE
ARE USED WITH RACK MOUNTED VERSION.
Figure 2-7 BAII-A Mounting Box in H961 Cabinet
TK-6459
2.6.2.1 Index Plate Mounting - To install the index plates refer to Figure 2-8 and perform the follow-ing procedure.
1. Position the right index plate onto the pawl as shown. The index plate mounting tab protrudes away from the side of the box.
2. Insert the pivot screw and tighten with a screwdriver.
3. Ensure that the index plate rotates freely when the locking pawl is released.
4. Perform steps 1 through 3 to install the left index plate.
0
FRONT
G.>
PAWL
~~
0PAWL RETRACTOR
BA11-AA, -AB MOUNTING BOX
o
RIGHT SIDE VIEW
LEFT INDEX PLATE
o
o
BA11-AA, -AB MOUNTING BOX o
LEFT SIDE VIEW
PIVOT SCREW
0
~~
0 0PAWL RETRACTOR
Figure 2-8 BAII-AA, -AB Mounting Box Index Plate Installation
FRONT
TK-4392
2.6.2.2 Slide Assembly Mounting - One of two types of slide assemblies is provided with the slide kit option: a single-channel slide set or a double-channel slide set. Figure 2-9 shows each type mounted to the BAII-AA, -AB unit and fully extended from the cabinet. The mounting location of the slides will vary depending on the type of slide. Figure 2-10 shows a typical H961 standard cabinet with the PDP-11/24-BC, -BD unit. The mounting location holes of the single-channel slides for each 26.67 cm (10-1/2 in) unit are indicated in Figure 2-10. When installing double-channel slides, the hole location num-bers will be decreased by two for the same mounting position of the units.
PAWL RETRACTOR SLIDE HOLD LEVER
SLIDE HOLD LEVER
SINGLE CHANNEL SLIDE
CABI NET RAI L
BA11-AA,-AB UNIT CABINET RAIL
DOUBLE CHANNEL SLIDE
TK-4393
Figure 2-9 Single- and Double-Channel Slide Assemblies
SLIDE MOUNT
* RAIL HOLE NUMBERS
62 0 59 0
44 41
26 33
8 5
o
* NOTE:
H961 CABINET
PDP-11/24 MOUNTING BOX
10.5 IN (26.67 CM) EACH LOCATION
SINGLE CHANNEL SLIDE HOLE NUMBERS ARE SHOWN.
DECREASE RAIL HOLE NUMBERS BY TWO (2) WHEN INSTALLING A DOUBLE CHANNEL SLIDE SET.
TK-6458
Figure 2-10 H961 Cabinet Slide Mounting Locations
Figure 2-11 shows the hardware and installation of a single-channel slide assembly. The double-channel slide assembly is mounted in a similar manner. To install the slide assembly perform the following pro-cedure.
1. Position the left slide against the left front and left rear cabinet rail as shown.
2. Insert one 10-32 screw and washer through the top hole in the slide bracket, through the hole in the front rail and into the top threaded hole in the nut plate. Do not tighten.
SCREWS (10-32)
LOCK
4 PLACES FRONT AND REAR
LEFT FRONT CABINET RAIL
\
,_ SLIDE BRACKET
Figure 2-11 Cabinet Slide Installation
LEFT REAR CABINET RAIL
\---
oSINGLE CHANNEL SLIDE ASSEMBLY
TK-4395
4. Insert one 10-32 screw and washer through the second hole from the bottom in the slide bracket, through the hole in the front rail and into the nut plate. Tighten both screws in the front rail.
5. Perform the same procedure in step 4 at the left rear rail of the cabinet.
6. Perform steps 1 through 5 to install the remaining slide onto the right side of the cabinet.
2.6.2.3 Mounting Box-to-Slide Installation - Figure 2-12 shows the method and hardware used to in-stall the mounting box onto the slide mounting bracket. Perform the following procedure.
1. Extend the left and right slide channels to their maximum position at the front of the cabinet.
When fully extended, the channels will be held in place by the slide hold lever shown in Fig-ure 2-9.
2. Carefully lift the mounting box over and above the extended slides and set the index plate over the slide mounting bracket on each side of the box. The index plate alignment tabs will engage the sides of the slide mounting brackets.
NOTE
When the slides are fully extended, it may be neces-sary to force the ends of the slides inward toward the sides of the mounting box.
3. Insert the three 8-32 screws through the left index plate tab and into the threaded holes of
SLIDE
MOUNTI NG -i._---I~
BRACKET
INDEX .... - - - - t f -PLATE
ALIGNMENT TAB
Figure 2-12 Mounting Box-to-Slide Installation
TK-3486
2.6.3 PDP-ll/24 System Cabinet Installation
The PDP-ll/24 system cabinet is supplied with four rollers on the bottom frame and four leveler feet.
The cabinet can be positioned alone or attached to another H9640 series cabinet. To install the PDP-11/24 system cabinet, perform the following steps.
1. Roll the system cabinet into position.
2. Open the rear door of the cabinet. Use a 4 mm (5/32 inch) hex wrench to release the door fastener (Figure 2-13).
3. Remove the ground wire connected between the door and the cabinet frame.
4. Slide the retractable hinge pin down until the top of the door releases.
5. Tilt the top of the door away from the cabinet and lift the door until the lower hinge pin is removed from the hole in the lower right bracket.
6. Remove the rear door.
7. Remove the shipping brackets supplied with the devices mounted in the cabinet. Shipping brackets are painted orange. If the system contains RL02s make certain the black bracket attached to the top unit is not removed.
NOTE
Retain all shipping brackets in the event reshipping is required.
8. Loosen the two 1/4-20 screws and washers that attach the right and left brackets to the cabi-net frame.
9. Remove and retain the right and left brackets.
10. Remove the left and right side panels by grasping each panel by the ends at the front and back of the cabinet and lifting the panel approximately 2.5 cm (1 in) to disengage the panel.
Pull the panel away from the cabinet to remove it and disconnect the ground wire attached to each panel.
11. Install the leveler feet (four) supplied with the cabinet (Figure 2-14) by performing the fol-lowing steps.
a. Screw a locking nut onto each leveler foot.
b. Screw each leveler foot into a leveler nut.
c. Slide each nut and leveler foot assembly into a slot located at each corner of the cabinet base.
REAR DOOR
DOOR FASTENER
GROUND WIRE
TK-6460
Figure 2-13 Left and Right Side Panel Removal
LEVELER FOOT