7
antistatic bag, return it to the shipping carton, and contact your local
supplier.
Installing the
Daughter Cards
This section describes how to install the OC-3/STM-1 and OC-12/STM-4
daughter cards into the ATM Interface Carrier Module.
You can install an OC-3/STM-1 daughter card or an OC-12/STM-4
daughter card in either the right pair or the left pair of cutouts of the
ATM Interface Carrier Module (Figure 2). However, if you are installing a
single OC-3/STM-1 card or a single OC-12/STM-4 card, 3Com
recommends installing it in the left cutouts, which are shipped uncovered
for this purpose.
Figure 2
ATM Interface Carrier Module Faceplate Cutouts
Installation Options
You can install daughter cards into the ATM Interface Carrier Module in
many different combinations. Each cutout of the ATM Interface Carrier
Module can hold an OC-3/STM-1 or an OC-12/STM-4 daughter card.
These daughter cards can be ordered in either single or multi-mode, and
can be mixed and matched accordingly. Furthermore, the OC-3/STM-1
daughter card can also be ordered with one port set to single-mode and
three ports set to multi-mode. The faceplate of the OC-3/STM-1 and
OC-12/STM-4 clearly display if they are multi-mode or single-mode. The
transmitting port (labeled Tx) has the letters SM for single mode or MM
for multi-mode (Figure 3 and Figure 12). Table 1 shows the different
configuration options.
Left Daughter Card Cutouts
Right Daughter Card Cutouts
