Instruction manual
ACU-1000 Operations Manual
Interoperability Now 2-109
2.17.4.12 Aux Output Control
The standard configuration for the LP module’s AUX-1 output is to change logic state when
cross connected. Contact the factory if other configurations are required.
2.17.4.13 Voice Prompt Initiation Delay
A delay can be added to the onset of system voice prompts. Different delays can be added to
any of the interface modules and to the HSP module. This variable delay is mainly used to
compensate for slow-to-react equipment associated with a module. For example, if a local
radio associated with a DSP-2 module has a long settling time after its PTT is activated, it may
be necessary to delay all voice prompts transmitted via the DSP-2. When additional delay is
required, the distant radio user will not hear the beginnings of system voice prompts.
The factory default for and DSP-2 modules is 100 ms; for HSP-2A, PSTN-2, and LP-2
modules, the default is no delay.
2.17.5 Remote Control Setup
The LE-10, 20, 30, & 40 are essentially the same as far as the external interface is concerned.
They are terminated with a DB-15 cable that may be directly plugged into the connectors on the
back of the ACU-1000. The audio TX and RX levels should be left at their factory default
settings and any adjustments will be made on the ACu-1000 module side. Below is a list of the
settings of the default dipswitch settings on the bottom of the remote. Most of them should not
need adjustment.
Switch # ON OFF
1 Low impedance load to radio RX out.
2
High impedance load to radio RX out.
OPTION – Latched F1/F2 output
3
OPTION – Momentary F1/F2 output.
Do not monitor on front panel PTT Monitor on front panel PTT
4 Speaker mute on any PTT
5
Depends on setting of JP15
Boosts level of parallel TX audio
received
Normal
6 High impedance radio mic input Low impedance radio mic input
7 Low level RX audio from radio High level RX audio from radio
8 For non-ground referenced RX audio
from radio
For ground referenced RX audio from
radio
Table 2-19 Remote Switch Settings
Note: Underlined items represent the default setting.