Accessory Connection Module (Acm); Key-Based Access Expansion Module (Kba) - Nortel Meridian M3900 Reference Manual

68 Hardware options

Accessory Connection Module (ACM)

The ACM is an optional hardware module that installs into the
telephone footstand. The ACM provides a port(s) to connect to the
accessory cartridge interface.
Figure 7 shows the ACM being inserted in the footstand
Figure 7
Accessory Connection Module
The M3902 set has one accessory port. The M3903, M3904, and
M3905 have two accessory ports. The plug-in cartridge allows the
M3900 series sets to use the following accessories:
•
•
•
•
The M3901 set does not support the ACM.

Key-based Access Expansion Module (KBA)

The KBA has 22 keys which function as additional keys to the physical
and self-labeled programmable feature keys on the M3900 series sets.
You can use these additional keys as DN or feature keys. The sets and
modules attach in such a way as they look and feel like one integrated
unit. Only the M3904 and M3905 sets use the KBA.
555-4001-136 Standard 05.06 May 2002
ATA
external alerter and recording interface
personal directory PC utility (M3904 and M3905)
full duplex handsfree cartridge (M3904 Release 3)