Carrier Access 1750 Benutzerhandbuch

Module Type

IOM

Part Number

7660-411

Slot Number

Mounts in chassis rear behind corresponding CPU

Description

The CPU IOM provides physical access to the system 
for Ethernet and also provides the remote shutdown 
interface as explained below.

Controls

REMOTE SHUT-DOWN – Spring terminal block for 
installing cables for remote CPU shut-down. A remote 
contact closure is used to short pins 1-2 or pins 3-4. 
Jumpers control how these contact closures work.

Jumpers

REMOTE SHUT-DOWN – Two user-installed 
jumpers on the component side of the module control 
how the remote contact closures work. As shipped, the 
jumpers connect pins 1-2 to pins 3-4 so that shorting 
either pair will reboot both CPUs. With the jumpers 
removed, shorting pins 1-2 will reboot the other-slot 
CPU; shorting pins 3-4 will reboot the same-slot CPU. 
It is recommended that the jumpers be removed.

Connectors

SERIAL – reserved for future use.
ETHERNET – RJ48 modular connector.

S H U T -
D O W N

R E M O T E

S E R I A L

P O R T

1
2

3

4

E T H E R N E T

I O M

C P U - 2

7 6 6 0 - 4 1 1