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LDP-8242 User Manual (Iss. 03) Installation • 2–5
Cabling for the LDP-8242
Figure 2.2 shows and describes the R2-8242 Rear Module specifically for use with the
LDP-8242. Note that the LDP-8242 BNC inputs are internally 75-ohm terminated. It is not
necessary to terminate unused BNC inputs or outputs.
Cabling Overview
This section provides a general overview of the connections available on the R2-8242 Rear
Module.
R2-8242 Full Rear Module
Each rear module occupies four slots and provides the following connections:
• One HD/SD-SDI video input BNC (
SDI IN A
)
• Eight AES I/O BNC (AES-3id) input/outputs (
AES I/O 1
thru
AES I/O 8
; I/O function of
each connection is software-configurable)
• Two opto-isolated GPI inputs (terminals
GPI 1-G
and
GPI 2-G
)
• Two serial ports (
COMM1
and
COMM2
), software-configurable as RS-485 or RS-232
• One HD/SD-SDI video output BNC (
SDI OUT A
)
External Reference Signals
External frame sync reference signals are received by the LDP-8242 over a reference bus on the
DFR-8321 series frame, and not on any card rear module connectors. The frame has BNC
connectors labeled
REF 1
and
REF 2
which receive the reference signal from an external source
such as a house distribution.
Figure 2.2 Cable Connections for the R2-8242 Rear Module