User manual

Release 2.0 Digium, Inc. Page 23
Chapter 2: Card Installation
It is easiest to identify your card by understanding the naming scheme for
each card. The second digit provides the number of FXS modules present
on the card. The third digit provides the number of FXO modules present
on the card.
Table 1: Example TDM410 Card Configurations
Card ID
FXO/FXS
Ports
TDM411B 1 FXO module
TDM404B 4 FXO modules
TDM422B 2 FXS and 2 FXO modules
TDM440B 4 FXS modules
Table 2: Example AEX410 Card Configurations
Card ID
FXO/FXS
Ports
AEX411B 1 FXO module
AEX404B 4 FXO modules
AEX422B 2 FXS and 2 FXO modules
AEX440B 4 FXS modules