PSM-Power Supply Module-

The PSM is a 200 W power supply that fits into the first slot of the chassis. The supply furnishes +12V, -12V, 5V and 3.3V to the modules.

ISCM-Intelligent System Control Module-

The ISCM Module contains an advance Digital Signal Processor with flash ROM, RAM, which controls the other system modules through the chassis. Switching control, call processing, call routing, security are all managed through the ISCM. It has built in two (2) RS232 ports. One controls programming using local or remote PC & VDV Media's Computer Control software. The second connects to expansion unit increasing the number of available ports from 16 to 32.

PSTN-2 or PSTN-4 Modules-

Each PSTN Module contains either two (2) two wire or (4) loop start ports to connect the IDS-1600 system to the public or PBX telephone system. This 2-port design gives effective resource management of the system. The PSTN Module provides two (2) front panel four-wire ports for interfacing communication to public telephone network or to cellular phones.

EXPM-2 or EXPM-4- Expansion Phone Module-

Each EXPM Module contains either two (2) or (4) ports. In addition to basic loop-start signaling for POTS, each 2-wire FXS port is supported. FXS interfaces are typically used for direct connection to 2-wire telephones in the following loop-start applications:

• Off-Premises Extension (OPX) - where a telephone connected to the local PBX can be connected to an off-premises telephone, by dialing only the extension number assigned to that phone.
• Private Line, Automatic Ring-down application (PLAR) (also referred to as Hot Line) - where two telephones are connected directly via the network link. When the telephone on one side goes off-hook, the other telephone rings. This system has an internal ringing voltage feed that supplies the connected telephones and therefore an external DC power source is not needed.

RIM-2 or RIM-4-Radio Interface Module-

Each RIM Module contains either two (2) radio ports or four (4) radio ports and has built in VMR/Noise Reduction with integrated audio processing, which eliminates the need for additional equipment to produce tone keying for remote radios or digital delay for trunking radios. To produce remote tone keying, the DSP injects a tone into the transmit audio signal of a 4-wire circuit to the remote radio.

Trunking radios need time to acquire an available channel. The channel acquisition times for cross-connecting a conventional to a trunking radio can cause loss of the initial conversation. To prevent this loss, each RIM module introduces a programmable digital delay in the transmit audio path to the trunking radio while allowing immediate keying to the trunking radio from the conventional radio channel.

Each RIM Module will support four groups! This allows the set up of multiple groups per radio and dramatically increases the efficiency of the IDS-1600. With the multiple group support a separate radio module would be required for each group that could affect the sensitivity of the radio system and would minimize the overall interoperability of the system.

DIP-Data Interface Card

The DIM card is a RS232 COM port, which supports 300bbs to 115Kbps with an asynchronous interface. The asynchronous interface can run at speeds from 300 up to 115,200bps. Up to 156 COM ports can be used in one system.

BACKPLANE:

The backplane contains power, audio and digital structure that routes the audio, data and control signals between the modules. The ISD-1600 modules plug into the 64-pin card edge connectors on the inner side of the backplane board; located on the front of each module is the connectors to the outside world. The modules communicate with each other using advance switch routing technology. In addition to the PSM Power Supply Module there are 5 extra connectors to the backplane.

SYSTEM SOFTWARE:

The ISD-1600 system software resides in the memory on the ISCM Module and controls each of the ISD-1600 modules as well as all aspects of the unit's operation with the outside communication world. The system software resides in the main DSP and controls call set up, user interface, packet switching control, call routing and system configuration. The ISD-1600 will store the memory of all software controlled configuration parameters that interface with the various modules. These parameters are re-loaded into the modules at system power-up. MTTR (Mean Time to Repair) is dramatically reduced because reconfiguration adjustments are not made if a module is replaced.

Custom Software- not all installations are the same! Because of this, the IDS-1600 software can be adapted by VDV Media to meet the requirements of its customers.

SECURITY:

Multi layer cross banding permission- cross-banded groups can be created with 3 layers of permission. a) Set up only by authorized users via a locally connected PC or remote PC. b) Set up by radios with DTMF capabilities and authorizing security codes. c) Set up by any radio on the system with DTMF.

DYNAMIC GROUP SET UP:

Dynamic set up of cross banding of radios- Using the DTMF capabilities of any radio or remote telephone, a user can set up calls between different radio groups operating on different frequencies. An authorized user can set up a temporary dispatch group call between different radio groups that have not been pre-programmed in the switch and then tear it down when the temporary group is no longer necessary.

COMPUTER CONTROL SOFTWARE:

Each IDS-1600 is supplied with easy to use Computer Control Software that is Windows 98, Windows NT, Windows 2000 and Windows XP compatible. This software resides in the ESCM Module and communicates both locally and remotely through the RS-232 Serial Port of the ISCM module. Its GUI (Graphic User Interface) is designed to be easy to learn and easy to use. This software coupled with an exterior interface box allows a remote operator to listen to and control the system over LAN, Internet or WAN. The IDS-1600 utilizes the newest and most advanced packet switching technology. While circuit switching keeps the connection open and constant, packet switching opens the connection just long enough to send a small chunk of data (packet) from one system to another. What happens is this: The sending computer chops data into these small packets, with an address on each one telling the network where to send them. When the receiving computer gets the packets, it reassembles them into the original data.

Packet switching is very efficient. It minimizes the time that a connection is maintained between two systems, which reduces the load on the network. It also frees up the two computers communicating with each other so that they can accept information from other computers as well.

INTEROPERABILITY RETRANSMISSION SYSTEM:

By using one or more RIM Modules a very complex site controller system can be designed with any combination of conventional and trunking radios supporting up to 16 simultaneous conversations. Cross banding configurations can be pre-configured or can be dynamically created with any radio using DTMF signaling. Because the RIM Modules can support up to 4 groups, complex configurations can be created with a minimum of RIM Modules and minimum investment without fighting de-sense RF issues.

MINI-PBX:

Using a combination of PSTN Modules and EXPM Modules creates a very flexible and powerful Mini-PBX. Examples include a two-line, 14 station and 4 line 12 station. By expanding to a 32 port ISD-3200, it can grow to a 4 line 28-station devise. By adding other modules, this Mini-PBX can be configured to by interoperable with conventional and trunking radio, cellular systems and SATCOM terminals.