Northern Airborne Technology AA38-5xx - Manual (Page 16)

AA38-5xx, -6xx, -7xx and -8xx Series Local ICS Loop
SM54 Installation and Operation Manual
Section 2 Rev: 1.00 Issue 4 Page 2-7
ENG-FORM: 805-0115.DOT
CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.
2.5.5 Remote ICS Master Volume Control (AA38-7xx and AA38-802)
The ICS volume is controlled by a remote-mounted, spring-loaded, centre-off toggle switch (installer
supplied). The switch is installed to provide a ground on J101 pin 11 to increase the intercom volume, or
on J101 pin 13 to decrease the intercom volume. The increase/decrease is in 32 discrete steps, by
activating and releasing the switch control or by holding the switch control in the desired direction. When
the switch is held in either direction, the change is slow initially, but after one second the control enters
‘fast’ mode. The ICS volume stops at its maximum or minimum value without ‘wrapping around’. After a
volume adjustment is made, the value is stored in non-volatile memory. The intercom master volume
control provides 40
±3dB of dynamic range.
2.6 Accessories Required But Not Supplied
Installation kit p/n AA35-IKC-1 (crimp) is required to complete the installation. The AA38-501, AA38-504,
AA38-505 and AA38-601 require one kit. The AA38-502, AA38-503, AA38-602, AA38-603, AA38-703 and
AA38-802 require two kits.
AA35-IKC-1 consists of
Quantity Description NAT Part No.
1 Connector, D-min 37 Socket Housing 20-21-037
50 MS Crimp Socket 20-26-901
37 37 Pin JVL Hood/Locklever 20-29-370
AA35-IKC-1 37-pin D-min Female Crimp Kit (Alternate Part No. D37SV-IKC).
2.7 Installation Drawings
Use of the "#" symbol in the REV. column indicates that the document is listed elsewhere in the manual.
Refer to the applicable NAT Part No. to locate the referenced document.
DOCUMENT REV. DESCRIPTION TYPE
AA38-501
AA38\501\403-0 1.01 Four Place Intercom Interconnect
AA38\501\405-0 1.01 Four Place Intercom Connector Map
AA38\501\922-0 1.00 Four Place Intercom Mechanical Installation
AA38-502
AA38\502\403-0 1.01 Eight Place Intercom Interconnect
AA38\502\405-0 1.01 Eight Place Intercom Connector Map
AA38\502\922-0 1.01 Eight Place Intercom Mechanical Installation
AA38-503
AA38\503\403-0 1.01 Four Place Intercom with Transmit Interconnect
AA38\503\405-0 1.01 Four Place Intercom with Transmit Connector Map
AA38\503\922-0 1.01 Four Place Intercom with Transmit Mechanical Installation
AA38-504
AA38\504\403-0 1.01 Four Place Intercom Interconnect
AA38\504\405-0 1.01 Four Place Intercom Connector Map
AA38\501\922-0 # Four Place Intercom Mechanical Installation