Cobalt Digital Inc 3G Fusion 9931-EMDE Product Manual page 29

Introduction
REAR VIEW OF FRAME
Expansion Rear Module installs on slot directly to the left
of base Rear Module, and interfaces with the piggyback
card. In this example, an expansion rear module breaks
out analog audio connections provided by analog audio
options.
9931-EMDE-OM (V1.17)
For some card options, a piggyback card is mounted to the main 9931-EMDE
card. Occupying two card slots, the connections for the functions offered by
the piggyback card are broken out using an expansion module (which is
installed adjacent to the base card rear module slot). When an expansion rear
module is used, the base rear module mates with the base Fusion3G
and the expansion rear module mates with the expansion piggyback card that
is piggyback-installed on the base card.
Figure 1-12 shows a 9931-EMDE card using an RM20-9931-B base rear
module along with an analog audio expansion rear module.
Figure 1-12 9931-EMDE with Expansion Rear Module
9931-EMDE PRODUCT MANUAL
9931-EMDE Functional Description
RM20-9931-B Rear Module provides connection
break-out for base card functions.
®
card,
1-25