Pcb Installation; Pcb Handling & General Installation - Vodavi Starplus Triad 1/2/3 Installation Manual

PCB Installation

PCB Installation
PCB Handling & General Installation
The system PCBs contain digital circuitry which, while extremely reliable,
can be damaged by exposure to excessive static electricity. When
handling PCBs, a grounded wrist strap should be used to protect the
boards from static discharges. Also, use common sense when handling
PCBs.
For example, do not place a PCB in locations where heavy objects might
fall on the PCB and damage components. With the exception of the
MPB/PMU, all boards may be installed or removed with power applied.
However, power must be turned off prior to insertion or removal of the
MPB/PMU. All other boards have a NORMAL/SERVICE switch which
should be put in the SERVICE position before insertion or removal with
the system powered. In the NORMAL position, the boards function
normally.
In the SERVICE position, the board is placed in an out-of-service mode.
Ports active when the switch is placed in the SERVICE position remains
active until released normally. When the port returns to idle, it is marked
as out-of-service and, when all ports and circuits on the board are idle,
the status LED(s) extinguishes indicating the board is idle and can be
removed from the system without affecting system operation.
Inserting a PCB
1. Hold the PCB by the injector tabs and, with the components facing
2. Slide the card into the system and use the injectors to seat the PCB
right, align the top and bottom edge of the PCB in the card guides.
firmly into the back plane connector.
3-27