Northern Airborne Technology 3110 - Manual (Page 13)

SM3110 Rev. 4.00 3110-100 Audio Control Panel Manual
Section 1 Description
1.1 Introduction
This manual contains information on the 3110-100 Audio Control Panel (ACP). All
derivative products will be covered by manual supplements, which can be obtained from
NAT as required.
Information in this section consists of purpose of equipment, features and specifications.
1.2 Purpose of Equipment
The model 3110-100 Audio Control Panel is a self-contained audio selection and mixing
panel compatible with the Rockwell Collins Pro Line 21 series radios (or equivalent).
Each 3110-100 provides selection of multiple transceivers, receivers, interphone circuits
and auxiliary functions from a basic front panel interface. The interface between the
radios and the 3110-100 and between multiple 3110 units is analog only.
1.3 Features
The 3110-100 ACP provides analog audio interfaces and Push-To-Talk (PTT) discretes
to the Rockwell Collins Pro Line 21 radios. The 3110-100 is an analog audio controller
with additional features for mixing and control of Aural Warning muting, front panel
control and audio amplification for headphone, speaker, CVR, interphone, radio
transmitter/receiver audio and keying.
Analog interfacing provides flight station interphone access, service interphone and radio
receiver/transceiver features. Various other analog features are also provided, including a
cockpit voice recorder output and emergency mode radio I/O. All interfacing is
accomplished through a 128 pin MIL-DTL-38999 Series II connector with alternate keying.
The 3110-100 converts standard aircraft power for its own use through its internal
power supply.
The 3110-100 provides:
• Three-position Service Interphone with ability for the pilot to connect to the Service
Interphone via the CAB function, with Cabin Call to alert the pilot.
• Transmit selection for four radios plus CAB (COM6) and PA, receive audio selection
for four Comm radios plus CAB (COM6), PA, and seven Navigation radios.
Individual receive audio volume control is provided for each receiver.
Aug 25, 2005 Page 1-1
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