CONCEPT 32 Concentrator with Repeat Keyboard Facility

The CONCEPT 32 Concentrator may be equipped and configured to allow Signalling Operators to access SPT circuits from two separate keyboards with some or all circuits ’repeated’ on both keyboards.

Both keyboards may be operated independently, and the system may be mapped to allow a combination of individual and common keys as required.

Operation—full repeat mode

The Primary and Repeat keyboards may be operated independently of each other. The repeat keyboard can be configured to be an exact copy of the primary keyboard with identical SPT allocations.

An incoming call alert will appear and sound on both keyboards with either Signaller having the option to accept the call (for non-mapped systems). Once accepted, the other keyboard will continually flash the relevant key to indicate to the signaller that this line is in use. Any attempt to call this line will be met by a busy tone to the other signaller. The line may only be cleared by the original recipient.

Any outgoing call may be made by either signaller on their respective keyboard, i.e. two independent calls may be made at the same time but not to the same line. A flashing key appears on the other keyboard to indicate that this line is in use.

Operation—mapped mode

The keyboards can be ‘mapped’ to allow a combination of individual and common keys presented to each keyboard as appropriate.

An incoming call alert will appear and sound as defined by the keyboard mapping. For common keys, once a call is accepted, the other keyboard will continually flash the relevant key to indicate to the signaller that this line is in use.

Any attempt to call this line will be met by a busy tone to the other signaller. The line may only be cleared by the original recipient.

Configuration & Software

Mapped keyboards require mapped software in their respective serial card EPROMS (non-standard).

Mapped software is identified by an “Mxx” number on the EPROM label, and non-mapped software is identified by “M0”.

Systems with a repeat keyboard require ‘mapped’ TIF EPROM software (non-standard) to manage and allocate the incoming call sounders to the relevant keyboard.