Andrew

It is an Analog Station Module (ASM)

Compatible on the MICS or 0X32 Systems only.

Each ASM provides connection for 8 analog devices.

There are 2 versions : M0X8A Standard
M0X8M With Message Waiting

*The M0X8M supports visual message indication (on 2500 sets with a message lamp) or stuttered dial tone.

This is perfect for systems that require a larger amount of analog devices because you can daisy chain two of these together and still only use up one expansion slot on the Expansion cartidge (NTBB06GA-93 or NTBB25GA-93 or NTBB02GA-93)

Ideal for use with Single line sets, Point of Sale equipment, fax machines and answering machines. (Data speeds up to 33 kbps)