User manual

Chapter 2: Card Installation
Card Identification
There are multiple configurations in which an 800 Series card may be
purchased. Each configuration consists of a combination of single
modules, quad modules, or both, and may also include the VPMOCT032
echo cancellation module. See Table 1 on page 23 for a list of the most
common TDM800P configurations. See Table 2 on page 24 for a list of
the most common AEX800 configurations. The lists are not complete, but
rather an example of the configurations available.
It is easiest to identify your card by understanding the naming scheme for
each card. The first digit is the maximum port count of the card. The
second digit is the number of FXS (station) modules present on the card.
The third digit is the number of FXO (office) modules present on the card.
Table 1: Example TDM800P Card Configurations
Card ID
FXO/FXS
Ports
TDM801B 1 FXO module
TDM804B 4 FXO modules
TDM808B 8 FXO modules
TDM844B 4 FXS and 4 FXO modules
TDM880B 8 FXS modules
Digium, Inc. Page 23