Nortel Meridian SL-100 Reference Manual page 70

9-4 Hardware options
The audio output level from the MEARI varies with handset, headset, or
handsfree. Levels vary between local and remote speech, and between users.
For this reason, voice recorders with automatic level control (ALC) circuitry
provide the best quality recordings and uniform recorded speech level. This is
especially true for recording handsfree conversations which can provide the
greatest range of speech level. The MEARI provides the following features:
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Since all three output signals operate independently, the MEARI can be used
for more than one purpose, such as loud ringing, call in progress indication,
and recording.
The MEARI does not require any software or system configuation.
The MEARI can be installed in the small dock of a M3902, M3903, M3904,
or M3905 series set. Three output connectors are provided on the back of the
MEARI cartridge. There is no need to disconnect the power supply from the
telephone prior to insertion or extraction of the MEARI cartridge.
Analog Terminal Adapter (ATA)
The ATA connects an analog device such as a fax machine or modem to the
telephone. This allows simultaneous use of the telephone and the analog
device. The ATA is available for the M3902, M3903, M3904 and the M3905
models, and it requires an Accessory Connection Module.
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.
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:
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Note: The M3901 set does not support the ACM.
555-4001-136 Standard 04.02 May 2001
ring relay contact
call status (off-hook) relay contact
record audio
ATA
external alerter and recording interface
personal directory PC utility (M3904 and M3905)
full duplex handsfree cartridge (M3900 Rel. 3)