Nortel Networks M3110 - Manual (Page 150)

Page 150 of 504 M 3900 description
553-3001-367 Standard 3.00 August 2005
Accessory keying
A maximum of two cartridge accessories can plug into the slots at the rear of
the ACM stand. The ports provide access to a SIDL/SDI port, USART port,
and GPIO0. Two accessories cannot access the same serial port. The
mechanical keying prevents this situation from occurring. Refer to Figure 30
for a better understanding of mechanical keying.
Analog Terminal Adapter
The Analog Terminal Adapter (ATA) lets you connect an analog device such
as a fax machine or modem to your telephone. You can have simultaneous use
of the telephone and the analog device. The ATA is available for the M3902,
M3903, M3904 and the M3905 models. In the EMEA market region, the
ATA is supported only on the M3904.
Computer Telephony Integration Adapter
The Computer Telephony Integration Adapter (CTIA), along with the
desktop TAPI Service Provider software, provides an interface to connect a
PC to the M3900 Series Digital Telephone. This enables PC applications to
monitor or control the M3900 telephone for first-party (individual) call
control type applications. The CTIA integrates the PC and the telephone,
2. The Meridian External Alerter and Recording Interface can only be used for external alerting when used with
the Full Duplex Handsfree. Call Recording is not supported.
Figure 30
M3900 Series mechanical keying
SDI
accessory
USART
accessory
SDI + USART
accessory
non-serial
accessory