Carrier Access 1750 Manual De Usuario

3. Firmly press the Protection SAM IOM into the chassis until the connectors 

completely seat. 

4. Secure the retaining screws on the top and bottom of the module, being careful 

not to over-tighten.

1. Before installing the CPU IOM, an adjustment may be needed to configure the 

remote shutdown operation. There are two jumpers on each CPU IOM module 
labeled JMP1 and JMP2. These jumpers control how the remote shutdown 
contacts work. As installed at the factory, jumpers JMP1 and JMP2 connect 
pins 1-2 to pins 3-4 so that shorting either pair will reboot both CPUs. With 
both jumpers removed, shorting pins 1-2 will reboot the other-slot CPU; 
shorting pins 3-4 will reboot the same-slot CPU. For a redundant unit with two 
CPUs, it is recommended that both jumpers be removed so that the CPUs can 
be rebooted individually without disrupting system operation.

2. Visually verify that each CPU IOM physically aligns with its respective CPU 

installed above, slots Q and R respectfully. 

3. Firmly press each CPU IOM into the chassis until the connectors completely 

seat. 

4. Secure the retaining screws on the top and bottom of each module, being 

careful not to over-tighten

The APM IOM is installed at the factory. This power module has fuses for each 
power source, as well as fuse holders for two spares.