User manual

Release 1.01 Digium, Inc. Page 19
Chapter 2: Card Installation
The ports available for use on the TDM800P are not continuous. The
ports available for use depend upon the type of module used, and the
placement of the module on the card. The TDM800P can accept 2 quad
modules, for a total of 8 ports. If single modules are used, only 2 single
modules can occupy the same space as a quad module. The single
module ports are identified on the card and their corresponding RJ11 ports
are identified below. Please refer to Figure 2 for an example using single
modules, and Figure 3 for an example using quad modules.
If a single module is used, the RJ11 port available for use will be the port
corresponding to the location of the module on the card. The following
ports correspond to the single module ports as shown in Figure 2.
 RJ11 Port 1 is used by Single Module Port 1
 RJ11 Port 2 is used by Single Module Port 2
 RJ11 Port 5 is used by Single Module Port 5
 RJ11 Port 6 is used by Single Module Port 6
If a quad module is placed covering single module ports 1 and 2, then that
module will use ports 1-4. Likewise, if a quad module is placed covering
single module ports 3 and 4, the module will use ports 5 through 8. Figure
3 shows a TDM800P with two quad modules.
There are multiple configurations in which the TDM800P card may be
purchased. Each configuration consists of a combination of single
modules, quad modules, or both. See Table 1 on page 21 for a complete
list of possible configurations.
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. See Table 1 on page 21 for a complete list of possible
configurations.
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