Instruction manual

ACU-1000 Operations Manual
Interoperability Now 1-3
Each interface module takes the audio and control signals of its associated CSAP and converts
them to signals that can be understood by the rest of the system.
Network
Switch
DSP-1
OR
DSP-2
DSP-1
OR
DSP-2
DSP-2
CPM-4
HSP-2A
PSTN-1
LP-1
Telephone Set
Radio A
Radio B
Radio A
Radio B
Local
Handset
Wall
Outlet
To Phone
System or
Cellular
ACU-1000
A
B
C
CAT-5
CAT-5
Router
Figure 1-1 ACU-1000 Plug-In Modules
Figure 1-1 illustrates the communications capabilities of the ACU-1000 plug-in modules. (Not
shown: the PSM-1A Power Supply Module.)
• HSP-2A Module: The keypad, handset and speaker on this module allow a local
operator to communicate with other system users. For example, if the HSP-2A module
is cross-connected to DSP module “A”, the person holding the handset could converse
with the person operating the portable labeled “Radio A.”