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M3900 telephone series Page 317 of 544
Option 11C and 11C Mini Technical Reference Guide
Figure 45
M3900 Series mechanical keying
Table 96 shows accessory compatibility for the M3900 Series Meridian
Digital Telephone.
Table 96
M3900 Series Meridian Digital Telephone accessory compatibility (Part 1 of 2)
HW Port SDI
SIDL +
USAR
T
USAR
T
UART HEADSET GPIO
HW
Port
Accessory MC
A
ATA DTA USB CTIA DB
A
KB
A
EXT.
ART
*
HD/
S
EXT.
ART **
RCD
R
SDI
MCA N/A X X X OK OK OK OK OK OK OK
ATA X OK OK OK OK OK OK OK
DTA X OK OK OK OK OK OK OK
SIDL+
USAR
T
USB X X OK OK OK OK OK OK
USAR
T
CTIA OK OK OK X N/A OK OK OK OK OK OK
UART
DBA OK OK OK OK OK N/A X OK OK OK OK
KBA OK OK OK OK OK X OK OK OK OK OK
SDI
accessory
USART
accessory
SDI + USART
accessory
non-serial
accessory