Toshiba nv Series - A.4 Serial Bus Interface Module Specification; A.5 Base Unit Specification

Chapter 3 Installation and Wiring
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(4) Remove the top bracket.
After loosening four screws securing the top bracket, move the top bracket to the left,
and pull it from the body of BUM7B. Check that four screws securing the top bracket
align with the large diameter circle of keyhole-shaped screw holes.
(5) Remove the screw at the top of the module.
(6) Hold the bottom of the module by one hand, and press the top lock lever by the other
hand.
(7) While pressing down the top lock lever, pull the module straight from the slot by the hand
holding the bottom of the module.
Top bracket mounting hole
(keyhole type)
Large diameter hole
Top bracket mounting hole (keyhole type) x 4
A
fter moving the top bracket to the left
Top bracket mounting hole (keyhole type) x 4
Screw securing the top bracket
Move the top bracket to the left
The screw aligns with the large diameter hole.
Before moving the top bracket
Small diameter hole