Nortel Passport 15000, Hardware Installation And Maintenance, Page: 631 / 874

Chapter 17 Hardware procedures 631
Passport 15000, 20000 Hardware Installation, Maintenance, and Upgrade 5.2S2
Locking or unlocking a door on a NEBS 2000 frame
Lock or unlock a door on a NEBS 2000 frame to control access to the
equipment mounted inside the frame.
Prerequisites
• You must be familiar with “Safety considerations and best practices”
(page 53).
• You need a key from any of the NTQS37 kits.
Procedure steps
1 Unlock a door lock by turning the key counter-clockwise until it is
horizontal as shown in the figure “A lockable vented door NTRU0423,
outside view” (page 632).
2 When locking a door, ensure that the upper and lower catches are
engaged by
• putting the lock horizontal in the unlocked position
• lifting the door handle
• turning it to the left
• pushing the door closed
• releasing the handle
A spring returns the handle to the starting position. While closing the door,
ensure that its grounding cable near a hinge is not rubbed or pinched.
Dress the cable as required.
Pull on each corner of the door on the lock side to ensure that the catches
have engaged.
3 Lock the door by turning the key clockwise until it is vertical.
4 Store the door keys according to your company’s security policies.