Cobalt Digital FUSION 3G 9985 3G_HD_SD Loudness Processor - Manual (Page 29)

9985-OM (V1.18) 9985 PRODUCT MANUAL 1-25
Introduction
9985 Functional Description
For some card options, a piggyback card is mounted to the main 9985 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® card, and the
expansion rear module mates with the expansion piggyback card that is
piggyback-installed on the base card.
Figure 1-12 shows a 9985 card using an RM20-9985-B base rear module
along with an analog audio expansion rear module.
Figure 1-12 9985 with Expansion Rear Module
RM20-9985-B Base Rear Module provides connection
break-out for base card functions. Expansion Rear Module RM20-9985-XD 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 optional analog video/audio
connections.
Expansion rear modules are always identifed with an “-X”
in the module part number.
REAR VIEW OF FRAME