Hardware; General Board Handling; Figure 4-1: Model 923-Edl Pcba - Focal 923 User Manual

4.0 Hardware

The Model 923-EDL card has a 923-0203-00 PCB assembly (PCBA). The PCBA has an external diameter of
3.37" [8.55 cm] (nom) and an internal diameter of 1.43" [3.63 cm] (nom). The card assembly is typically installed
on Focal TM rotary products such as electrical slip rings (ESRs) and FPSOs.
This PCBA is designed for interfacing with a 9-pin Micro-D connector, which is used to provide power to the card
and access real-time and stored diagnostics information.
Top and side views of the Model 923-EDL PCBA are shown in the figure below. For more details, refer to
configuration drawing 923-2004-00.

4.1 General Board Handling

The PCBA does not require forced air convective cooling. Generally heat from the card is conducted through
the mounting hardware.
Care must always be taken during the handling of PCBAs to ensure product integrity. The following guidelines
should be adhered to in working with PCBAs:

Always handle boards by the edges and do not touch any connectors or gold tabs.

Handle boards at an ESD safe workstation with a clean surface.

Never stack PCB assemblies on top of one another.

Do not flex boards during handling or when mounted. The mounting surface needs to be flat and even
such that the board is not flexed when bolted down.

Do not cause unnecessary shock and vibration, such as dropping or rough handling of the boards.

Do not expose light, temperature and humidity sensors to solvents or other corrosive liquids.
Focal Technologies Corporation
A Moog Inc. Company

Figure 4-1: Model 923-EDL PCBA

Model 923 Data Logger – User Manual
Document No: 923-0603-01, Rev. 2
Page 4-1