Instruction manual

ACU-1000 Operations Manual
2-12 Interoperability Now
2.8 Installation Checklist
Table 2-2 Installation Checklist
Provide suitable Mounting and Cooling.
See Section 2.5.
Check AC Line voltage selection.
See Section 2.6.
DC Operation needed?
See Section 2.7.
Battery Backup needed?
See Section 2.7.2 and 2.7.4.
Make Interconnections.
See Section 2.9 for External Interconnect Information.
Any Remote Control setup required?
See Section 2.17.5
Are radio interfaces properly configured?
See Configuration items for the DSP-2 in Table 2-10.
Are radio interfaces optimized?
See Configuration items for the DSP-2 in Table 2-10.
Set Telephone Line Level if necessary.
See Section 2.17.3
Numerous other configuration options available but not included in this checklist. See Sections 2.10 to 2.16.
2.9 External Interconnect Information
This section details the type and pin-out information for the ACU-1000 external connectors.
Up to 15 modules may be plugged into the ACU-1000 chassis. The left-most slot is reserved
for the PSM-1A Power Supply Module. The HSP Handset/Speaker/Prompt Module resides
next to it, and the third slot is reserved for the CPM Control Processor Module. The 12
remaining slots may be occupied by any of the various ACU-1000 interface modules.
Each of the interface module slots (and the HSP-2A slot) has an associated DB-15 connector on
the backplane. The pin connections for each module depend on the type of interface module
installed in the slot. The connectors for the 12 interface module slots are labeled P1-P12 on the
backplane. P1 is associated with the module plugged into the slot adjacent to the CPM-4
Module, and the P12 is the connector for the module plugged into the right-most slot. Pin 1 is
at the bottom of each connector. The connector for the HSP-2A slot is labeled P13.
The main function of the ACU-1000 is to establish a communication link between different
media. For example, the ACU-1000 allows a conversation to take place between a telephone
user connected to the PSTN module installed in one slot, and a VHF radio operator interfaced
to the DSP module installed in a different slot. A local operator may use the HSP-2A handset
and keypad to establish communications with other users connected via any of the interface
modules installed.
To reference the modules and system users, the 12 slots the interface modules plug into are
called “extensions”. Extensions 01 through 12 are associated with backplane connectors P1
through P12. The HSP-2A module is identified by the extension “00” (think of this as similar
to “O” for “Operator”). In an Expanded System where two chassis are connected together to
provide more extensions, P1-P12 in the Master Chassis are still associated with extensions 01
to 12, and extensions 13 to 24 are associated with P1-P12 in the Expansion Chassis. The HSP -
2A slot in the Expansion Chassis is extension 25. The HSP and Interface Modules are