Opening The Case; Closing The Case - Sferalabs Iono Pi Max Series User Manual

For the initial set-up, the plastic DIN rail enclosure must be removed to access the circuit
boards and internal connectors, to install or remove the Raspberry Pi Compute Module
and the µSD cards.
The case also needs to be opened if the factory configuration of the RS-485 and CAN
termination resistors must be changed (see below), or to connect to the microcontroller
programming and debug header.
NOTICE
Before opening the Iono Pi Max enclosure, disconnect all power sources and any
connection to external devices, including USB and Ethernet cables.

Opening the case

Follow these steps, in the exact order, to open the case:
1. Remove the green pluggable terminal blocks
2. Remove the black plastic DIN rail hook
3. With a small flat screwdriver gently separate the case bottom and boards assembly
from the top shell; lift both sides gradually; pay attention not to touch the circuit boards
with the screwdriver's tip
4. The circuit boards assembly will simply slide out of the case, as it is mechanically held
in place by the case bottom only.

Closing the case

5. Remove the front panel. This will help aligning the circuit boards assembly with the
case walls
6. Replace the circuit boards assembly inside the case; ensure that the USB/Ethernet
connectors and terminal blocks are aligned with the openings in the case
7. Replace the case bottom, partially inserting both sides, then gently push on both sides.
The case bottom must perfectly fit and firmly hook to the case cover. If it doesn't, the
circuit boards assembly is not perfectly fit into the case top shell
8. Replace the front panel, ensuring that the frontal push-button is aligned to the panel's
hole
9. Replace the black plastic DIN rail hook.
13 Iono Pi Max User Guide