Module Firmware And Operation Modes - Motorola V186 - Cell Phone - GSM System Planner Manual

the Ethernet ports (Eth2-Eth8) on the second switch. (The Eth2 port on the first
switch is connected to the Eth1 (M) port on the second switch Ethernet LAN.)
Expansion frames are provided without cables. For connection, use one of the cables
listed below or use any other standard Category 5E shielded (FTP) LAN cable (up to 50
meter length).
Three different Ethernet cables are available for this purpose. Choose the cable length
based on the distance from the main frame to the expansion frame.
60 cm (Motorola p/n V529 / FKN8561A) - This cable is used for local connection
of the main CPU to the expansion switch, or connection of the first LAN switch to
the second, if such exists.
2 meter (Motorola p/n V648 / FKN8562A)
3 meter (Motorola p/n V666 / FKN8563A)

Module Firmware and Operation Modes

The expansion module firmware extends the main CPU control to the I/O modules
located in the expansion frame. The expansion module (expansion CPU) is shipped from
the factory with a dedicated firmware called Expansion Loader. After connecting to the
main CPU (MCPU), the expansion module loads the Expansion Firmware Image from
the main CPU to ensure that all modules use the same firmware version.
The following diagram describes the initiation process of an expansion module after
power-up/restart and during run-time.
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I/O Expansion