Console Installation
168
routed to the console speaker. Various routing options for receive audio may be achieved
by the placement of jumpers inside the console (see
).
The mic switch signal, when used in conjunction with the “electret PTT” signal, is used to
re-route the microphone transmit audio between the electret mic port and the dynamic mic
port. This is in effect a “mic switch” signal. When this signal is shorted to ground, the
“electret PTT” signal is used for the electret mic port. When the mic switch signal is
opened from ground, the “electret PTT” signal is used for the dynamic mic port.
When the fourth CPSW option is used, the “Hookswitch” signal is also used as a “mic
switch” signal. This option is used if the standard headset jackbox is supplied instead of
the TRHI. This option provides compatibility with older console installations that did not
separate speaker and microphone switching.
Grounding the “dynamic port PTT” signal will always activate the dynamic microphone.
summarizes the console signals involved in microphone steering.
Table 71: Microphone Steering Signals
Audio Source and Steering Note Summary
There are only three external audio sources:
• “D” Mic
• “E” Mic
• Aux In
There are four methods of turning on the audio:
• D PTT
• E PTT
• Aux PTT
Connection
Name
Description
Aux-7
Dynamic port mic +
(high)
Aux-8
Dynamic port mic -
(low)
Aux-9
Dynamic port PTT + (always used for dynamic mic)
Aux-10
Dynamic port PTT - (ground & mic shield)
HSJ-1
Ground
(ground)
HSJ-2
PTT Busy
(any PTT active)
HSJ-3
Aux Output 1
(optional off-hook signal)
HSJ-4
Electret port PTT +
(also steered PTT)
HSJ-5
Electret port mic +
(positive bias)
HSJ-8
Hook
(speaker switch)
HSJ-9
Mic Switch
(microphone switch)
Summary of Contents for 4000 Series
Page 1: ...Series 4000 Communication Control System Installation and Configuration 025 9533Y...
Page 6: ...6 025 9533Y...
Page 28: ...Introduction 28 025 9533Y...
Page 88: ...Common Control Equipment Installation 88 025 9533Y Figure 22 Console Duplex Wall Jacks...
Page 110: ...Common Control Equipment Installation 110 025 9533Y...
Page 172: ...Console Installation 172 025 9533Y...
Page 192: ...Audio Level Adjustments 192 025 9533Y...
Page 230: ...Accessory Installation 230 025 9533Y...
Page 236: ...Console ANI Programming 236 025 9533Y...
Page 339: ...339 RSMP Operation Figure 99 Main Screen...
Page 350: ...Radio System Management Program 350 025 9533Y...
Page 362: ...Appendix B Troubleshooting 362 025 9533Y...
Page 418: ...Index 418 025 9533Y...