Ross ASI-310, User Manual

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16 • Hardware Overview ASI-310 User Guide (v5.0)
MDL-R20 Rear Module
The MDL-R20 Rear Module is required when installing the ASI-310 in the DFR-8321 series frame, OG3-FR series
frames, and OGX-FR series frames. Each MDL-R20 Full Rear Module accommodates one card and uses two slots.
Each MDL-R20 provides a SMPTE 310M input, an ASI input, a SMPTE 310M monitoring output, one SMPTE
310M output, and an ASI output. ( Figure 1.4 )
Figure 1.4 Cabling for the MDL-R20 Rear Module
Connections Overview
This section briefly outlines the types of connections available on the rear modules.
310 In — BNC 1
BNC 1
accepts a SMPTE 310M Transport Stream input which can be converted to ASI and/or used as a frequency
reference for the 310 output. The input signal is internally terminated in 75ohms when the ASI-310 is installed.
When the ASI-310 is removed from the rear module, this input is terminated in the equipment connected to the 310
Out BNC.
ASI In — BNC 4 or BNC 5
BNC 4
(
BNC 5
on the MDL-R10) accepts an ASI Transport Stream input for conversion to SMPTE 310M. The
input signal is internally terminated in 75ohms when the ASI-310 is installed and unterminated otherwise.
310 Out — BNC 3
BNC 3
carries the SMPTE 310M output produced by conversion of the ASI input. When the ASI-310 is removed
from its slot, the rear module bypasses
BNC 1
to
BNC 3
directly.
310 Monitor — BNC 2
BNC 2
carries an inverted copy of the 310 output. When the ASI-310 card is removed from its slot, there is no
output from this BNC.
BNC 4 (MDL-R10 only)
This output is not implemented. Do not move it from its default position.
310 In
ASI In
310 MON Out
ASI Out
310 Out
GPIOs
4 5
3
1 2