JPS ACU-5000, Installation And Operation Manual, Page: 26 / 86

ACU-5000 Operations Manual
3-4 Interoperability Now
3.4
RoIP Interface
All RoIP connections are made through one of the ACU-5000’s four Ethernet RJ-45 LAN
connectors. The ACU-5000 routes communications packets to the proper destinations. RoIP
(Radio over IP) is a JPS proprietary protocol that’s a version of the standard VoIP protocol, but
optimized for best operation when communicating with radios over an IP network.
When the RoIP interface configuration is selected, an ACU-5000 channel can communicate with
JPS ACU and NXU devices. The main use is to allow the ACU-5000 to interface a distant radio
via an IP network (see Figure 3-4) below.
Figure 3-4 NXU-2A as Cable Extender
3.5
PSTN Interface
The ACU-5000 has three RJ-11 connectors that can be used to create two-wire PSTN interfaces
to telephone or satellite phone systems. Typically, a standard telephone cord will be used to
connect an ACU-5000 RJ-11 PSTN port to a standard telephone wall RJ-11 phone jack. A
telephone user attempting to access the system would use a telephone anywhere and call the
number associated with that phone jack; this call will be picked up by the ACU-5000’s PSTN
port. Functionality will be similar to that of the ACU-1000 PSTN module.
Alternatively, VoIP phones users can connect to the system via the PSTN interfaces. For this to
be possible, an ATA (Analog Telephone Adapter) must be connected between the PSTN RJ-11
port and an IP network. See Section 0.
3-5 PSTN Interface
End of Section 3
IP Network
RADIO NXU-2A
ACU-5000
RoIP
LAN RJ-45
ACU-5000
PSTN
or other
2W device
RJ-11
TX & RX Audio
Telephone
Telephone
System
TX & RX Audio