Northern Airborne Technology AA36-100 - Manual (Page 16)

AA36-100 Digital ICS Tie Line Adapter Manual SM58 Rev. 4.00
2.3.5.2 MIC OUTPUT switch
This ten-position rotary switch is used for selecting the output level for the unidirectional
tie line. The rated outputs are 0.25, 0.5, 1, 1.25, 1.5, 1.75, 2.25, 2.5, 2.65 and 2.8 Vrms.
If the unidirectional tie line is used, this switch must be set to match the rated input of
the audio panel.
2.3.5.3 NORMAL ICS TIE switch
This four-position rotary switch is used to select the input level for the bi-directional NAT
tie line. The selectable options are Super NAT Tie Line, 1 NAT Load, 2 NAT Loads and
3 NAT Loads. For example, if the Super NAT tie line is to be used, this switch must be
set to the Super NAT Tie Line position. If three NAT intercoms are attached, the switch
must be set to 3 NAT ICS.
2.3.5.4 SUPER ICS TIE switch
This four-position rotary switch is used for selecting the output level for the bi-directional
NAT tie line. The rated outputs are NAT Tie Line, 1 Super NAT, 2 SuperNAT and 3
SuperNAT. For example, if the NAT tie line is to be used, this switch must be set to the
NAT Tie Line position. If three Super NAT intercoms are attached, the switch must be
set to 3 SuperNAT.
2.3.5.5 ICS TIE I/P switch
This four-position rotary switch is used for selecting the input level for the universal bi-
directional ICS tie line. The rated inputs are NAT Tie Line, Andrea, Gemelli and dB
Systems. For example, if the NAT tie line is to be used, this switch must be set to
position 0. If dB System’s intercoms are attached, the switch must be set to position 3.
2.3.5.6 OUTPUT IMPED. HI switch
This four-position rotary switch is used for selecting the high-side output impedance for the
universal bi-directional ICS tie line. The rated outputs are NAT Tie Line, Andrea, Gemelli
and dB Systems. For example, if the NAT tie line is to be used, this switch must be set to
position 0. If dB System’s intercoms are attached, the switch must be set to position 3.
Note: Both output impedance switches must be set to the same position.
2.3.5.7 OUTPUT IMPED. LO switch
This four-position rotary switch is used for selecting the low-side output impedance for
the universal bi-directional ICS tie line. The rated outputs are NAT Tie Line, Andrea,
Gemelli and dB Systems. For example, if the NAT tie line is to be used, this switch must
be set to position 0. If dB System’s intercoms are attached, the switch must be set to
position 3.
Note: Both output impedance switches must be set to the same position.
Page 2-4 Nov 14, 2003
ENG-FORM: 805-0104.DOT
PROPRIETARY AND CONFIDENTIAL TO NORTHERN AIRBORNE TECHNOLOGY LTD.