The System Control Interface (SCI) operates in conjunction with the TSC Channel cards to form a complete trunking site. The primary function of the SCI is to connect the channel cards to other parts of the network. This could be a system terminal PC for a single-site system, or the Regional Control Processor if a multi-sited wide area network. The SCI additionally provides billing, control, status reports, customer validation and local phone interconnects. 

System Control Interface (SCI) communicate with Channel controllers via a very resilient high-speed bi-directional serial bus. This simple 2-wire connection can be up to 100 metres long, useful if several racking cabinets are to be connected (on a large system) where the cabinets cannot be mounted close to one another.


Part of the SCI is a SIMM module. The SIMM module is available in options ranging from a standard 2M SRAM to a 16M SRAM capable of storing up to 100,000 billing records and 100,000 subscriber records.

SYSCON Network Management..

The System Control terminal, SYSCON, operates in conjunction with the infrastructure to provide user management and system control functions from one software package. SYSCON is designed to run 24 hours a day, using MS Windows® as a platform. The database is stored in Microsoft Access format so data is readily available for external processing and the generation of statistics. 

SYSCON offers a full set of diagnostic tools, covering every aspect of network operation. In the unlikely event that any errors occur within the network they will be reported back to the terminal from where the operator can investigate further and take the appropriate action. SYSCON supports a dial-up Modem connection as well as a direct connection to remote infrastructure locations.

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The PCM Switch is installed at the site alongside a Single Site Interconnect. In its simplest configuration the switch may be used to allow patching between base station ports and the PSTN/PABX telephone network as well as line dispatcher terminal. The PCM family consists of a 2U single card, to a multi card 6u chassis. The PCM offers a choice of the analogue cards or the E1/ T1 digital cards.

Connection to E1/T1 digital lines..

Connection to E1 / T1 digital lines. Analogue and digital cards utilise the same form factor and maybe installed in the same switch frame. Each digital card offers up to 30 ports, connected directly to an E1 line. Connections to a T1 circuits provide the standard 24 ports. Fractional 64kbps circuits and telephone signaling are not supported.

Connection to analogue PABX / PSTN..

Each analogue card offers 4 private circuit connections or 2 PABX / PSTN and 2 private circuit connections. Each port is presented on a standard RJ45 socket.

The (SSIU) allows connection of a site to the PSTN or PABX. Ports to attach an MHD and the system control terminal are included.

Single Site Kit with Telephone Interconnect

SSTAK01 is an SSIU and 2U PCM switch combination making a cost-effective solution for telephone connection on single site systems.