Hardwareoptions Page47 of 174
M3900Series Meridian Digital Telephones Description,Installation and Administration
Accessory Connection Module (ACM)

TheAccessory Connection Module provides the interface for adding the

AnalogTerminal Adapter, External Alerter and Recorder Interface,

ComputerTelephony Integration Adapter, andPersonal Directory PC Utility.

TheACM is available for the M3902, M3903, M3904 and the M3905. The

ACMrequires a wall transformer to power any of the accessory cartridges.

Youmust order the wall transformer separately from your Nortel Networks

distributorto power the ACM and/or the M3900 accessories.

Headset
(amplified)
connectsthrough
theheadset jack
Supports Supports Supports Supports
Handset Standard Standard Standard Standard
Note1: M3905Phase III firmware and X11 Release 25.40 or later software are required to support the
PersonalDirectory PC Ut ility,DBA, and CTIA accessories.
Table 7
Accessorycompatibility (Part 1 of 2)
ATA
Key-based
Expansion
Module
Personal
Directory
PC
Utility
External
Alerter and
Recording
Interface
Display-
based
Expansion
Module CTIA
Analog
Termi nal
Adaptor
(ATA)
NA YES YES YES YES YES
Key
Expansion
Module(2)
YES NA YES YES NO YES
Table 6
M3900Series telephone accessories compatibility (Part 2 of 2)
Accessory
X11
release
introduced
M3900
phase
introduced
M3902 M3903 M3904 M3905