Wohler AMP2-SDA/AVU User Manual page 14

AMP2-SDA/AVU and AMP2-SDA/APP User Manual P/N 821576 Rev-A
E
SDI Output Connector
The SDI OUT loop-through connector outputs a reclocked (regenerated) copy of the signal entering the SDI IN input
connector (Item F) and is configured for unbalanced, 75 Ω connections.
F
SDI Input Connector
This SDI IN input (on female BNC connector) is meant to receive standard SDI signals and is configured for unbalanced, 75
Ω connections. Note that the unit will monitor this SDI input only when the Analog/Digital Source Select Switch (Item 4,
page 8) is set to DIGITAL and the AES/SDI Source Select Switch (Item 6, page 8) is set to SDI.
G
Selected Analog Output Connectors (from Digital Source)
These two 3-pin male XLR connectors are analog outputs of the selected digital source (not the analog source) as selected
for the left and right speakers and level meters. The left connector outputs the left channel (or channel A) and the right
outputs the right channel (or channel B). Both connectors are configured for low impedance connections and the output
signals are not affected by the volume/balance controls or headphone mute. These connectors continually output the
selected digital source even when the analog inputs are selected for monitoring through the speakers. See Item H for a
diagram of XLR connector pinout assignments.
H
Analog Input Connectors
These two 3-pin female XLR connectors accept standard analog audio signals and are configured for balanced 40k Ω
connections. Note that the unit will monitor analog signals input on these two connectors only when the Analog/Digital
Source Select switch on the front panel (Item 4, page 8) is set to ANALOG. See below for a diagram of XLR connector
pinout assignments.
Pin-2
High (+)
Female XLR Pinout
I
AES Input Level Gain Calibration DIP Switch
Input level gain calibration, the analog level which corresponds to a given digital input value, is settable via this DIP switch.
The factory setting is +4 dB (analog) = -20 dBFS (digital). See the silk-screened chart on the rear panel or the diagram
below for Gain Calibration settings.
14
Rear Panel Features
(Continued)
Pin-1
Gnd
(Shield)
Pin-3
Low (-)
© 2004 Wohler Technologies Inc. ALL rights reserved
Pin-1
Gnd
(Shield)
Pin-3
Low (-)
Male XLR Pinout
Section 2: Operation
Pin-2
High (+)