DIR911T User Guide
83
Auxiliary Input Connectors
There are at least two (and up to four) 3.5mm Tip-Ring-Sleeve (TRS) connectors on the
rear panel that provides the auxiliary inputs for each line. This connectors are used to
connect the unit to standard audio playback devices that have industry standard line level
outputs. These jacks accept both differential and single ended signals (although there is a
6dB gain reduction for single-ended signals). The mating connector for this jack is
shown in Figure #69 and the pin description is shown in Table #16.
Tip
Ring
Sleve
Figure 69: Rear Panel Auxiliary Input Connector Pin Diagram
Pin Description
TIP Audio Signal +
RING Audio Signal -
SLEVE Ground
Table 16: Rear Panel Auxiliary Connector Pin Description
ALI Input Connector
A single DB-9 type connector on the rear panel is used to connect ALI providing
equipment to the unit. The serial signals are standard RS-232 levels. The pin diagram
for this connector is shown in Figure #70 and the pin description is shown in Table #17.
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