Products

The AS44 provides conversion between two signalling methods, AC15A and DC5 (or E&M). The conversion can be in either direction allowing AC15A from a PABX to be converted to E&M onto a multiplexer or DC5 from a PABX to an AC15A line by a service provider.

The Signalling Converter AS50 is a Single Extended Eurocard Plug in module providing conversion of one DC5 (E&M) voice circuit to ROLI CRA loop calling port (or simple telephone), or RILO, 2W extension port of a CRA.

The Signalling Converter AS50LXV is a Single Extended Eurocard Plug in module configured as a Single Port Line Repeater for boosting the extension port from a standard CRA or router to a remote telephone set.

The Signalling Converter AS50/M is a Single Extended Eurocard Plug in module providing conversion of one DC5 (E&M) voice circuit to Magneto or Gen/Gen for connection to an existing circuit for further conversion to ROLI or RILO if required.

This ASS10 can accommodate up to 10x PCBs/Sig Units with further slots provided for housing a standard ASP04 power unit and also the Fuse Alarm card (supplied as standard with the shelf).

The 19" Rack Mounting AS-S12 Shelf is designed to house up to 12 plug in single extended Eurocard Signalling Converters.

This unit has an integral GSM engine and provides a method of porting standard SMS/Text messages to a remote display unit.

These power units are supplied specifically for Keltel products but can also be supplied for powering other equipment requiring a nominal 48Vdc supply.

These power units are supplied specifically for Keltel products but can also be supplied for powering other equipment requiring a nominal 48Vdc supply.

The ASP04 is available in both 24V and 48V versions and in various power ratings.

Keltel can supply the original ROLI MkII previously sold by Keltek Electronics and BT as the 61B.

The PDTMF PCB provides a means of converting between pulse and DTMF dialing on a standard 2W or 4W E&M (DC5A) circuit.

The 4W/2W Terminating Unit is designed to provide conversion from a 2W presented connection to a 4W termination for connection to associated equipment (all ports 600ohm).

The PCU44 MkII provides conversion between two signalling methods, AC15A and Dc5 (or E&M). The conversion can be in either direction allowing AC15A from a PABX to be converted to E&M onto a multiplexer or Dc5 from a PABX to an AC15A line by a service provider.

The As0150 DDA V2 Digigrabber is a device which connects in parallel with a standard 2W BT phone and displays the on-hook/off-hook conditions and also the dialled number generated by the telephone.

The As0150 DDA V2 Digigrabber is a device which connects in parallel with a standard 2W BT phone and displays the on-hook/off-hook conditions and also the dialled number generated by the telephone.

The HSTEL1M is a standard 2W loop clling telephone which can be wall or desk mount depending on the installation requirements.

The UNILINK is a basic Hotline unit for connecting two simple 2W telephones over copper cable up to a distance of 6Km.

The UNILINK is a basic Hotline unit for connecting two simple 2W telephones over copper cable up to a distance of 6Km.

The FOSM system is a method of providing an extension telephone, radio interface and engineering telephone over a secure fibre optic link.

In addition to the basic telephony functions it provides auxiliary alarms host to remote and vice versa. The FibTel system was specifically designed for providing secure communications over fibre into a high voltage service tunnel.

The Dual Channel ROLI converts two standard 4W E&M ports from a multiplexer to simple telephone connections.

The Single Channel ROLI converts a standard 4W E&M ports from a multiplexer to simple telephone connection.

The Desk to Desk Dialer unit provides a method of connecting a DC5 or E&M port from an external tie line to PABX via a trunk and extension port.

The Vehicle Intercom provides a method a selectable open audio channel between the driver and passenger of a vehicle fitted with a sound proof bulkhead.

The AS0350 can interface to a simplex radio set from a trunk port of any standard telephone system. As standard the unit links to a single radio set but could be modified to link to numerous radios with a selective front end, ie press 1 for first radio, 2 for second etc.

The AS0351 can interface to a simplex radio set from a trunk port of any standard telephone system. As standard the unit links to a single radio set but could be modified to link to multiple radios with key selection.

The Hotline 6 unit provides a method of connecting up to six remote telephones back to a single central control telephone with instant calling being created by lifting the telephone off-hook.

The Hotline 4 unit provides a method of connecting up to four remote telephones back to a single reception/host telephone with instant calling being created by lifting the telephone off-hook.

The EMTEST provides a method of testing the operation of an E&M or DC5 port on a PABX, Mux, Router or other equipment with tie-line ports.

The Mains Fail Alarm is a self contained unit with integral battery backup. It continually monitors the incoming mains voltage (110 to 240Vac) and when detected goes into active mode.

The Keltel PSTN Dialler provides a means of connecting equipment with no communications facilities back to a server or to another remote or central system.

The Envoy is a modular Time Division Multiplexer (TDM) which is easily configured for use in a variety of voice and data applications.

The unit has been designed on the proven hardware of the Multisig but with firmware specifically modified to meet the requirements of Zetron. The unit will provide ROLI or RILO to the telephony equipment and dry contact out and 12Vdc in on the radio interface port.

The PCU44 MkIII provides conversion between two signalling methods, AC15A and DC5 (or E&M). The conversion can be in either direction allowing AC15A from a PABX to be converted to E&M onto a multiplexer or DC5 from a PABX to an AC15A line by a service provider.

The Fibre to Audio Interface Unit provides conversion between Singlemode or Multi-mode to copper signalling.

The AS1640 ROLI to 4W E&M unit provides a method of testing the operation of an E&M or DC5 port on a PABX, Mux, Router or other equipment with tie-line ports.

The Fibre to Audio Interface Unit provides conversion between Singlemode or Multi-mode to copper signalling.

The Fibre to Audio Interface Unit provides conversion between Singlemode or Multi-mode to copper signalling.

The AS44 provides conversion between two signalling methods, AC15A and Dc5 (or E&M).

The AS1750 PABX supplied by Keltel Comms Ltd is based on an NEC XN120 with the addition of a custom circuit to provide E&M signalling to any 4W E&M network, a 48Vdc PSU to allow connection to a local battery supply and an MDF for connection of all telephone instruments and trunk lines.

The AS1800 converts from ROLI or RILO to AC15A. Signalling to the AC15 line is provided on the RJ12 connection where as the ROLI/RILO connection is presented on the RJ45.

The AS1800 converts from ROLI or RILO to AC15A. Signalling to the AC15 line is provided on the RJ12 connection where as the ROLI/RILO connection is presented on the RJ45.

The AS2410 Portable Incident Recorder is a compact units which can be quickly and easily deployed to provide communications and storage of audio to a selection of different circuit types.

The AS2440 Cable Intercom Unit provides an Omnibus type of communications between numerous users all connected on a common twisted pair cable.

The fibre to ROLI/RILO signalling adaptor can provide conversion for both signal variants on the one PCB.

The fibre to ROLI/RILO signalling adaptor can provide conversion for both signal variants on the one PCB.

The fibre to Audio & Signalling adaptor can provide conversion for both options on the one PCB.

The fibre to RS232 Signalling adaptor can provide bi-directional conversion for baud rates upto 9600.

The fibre to ROLI/RILO signalling adaptor can provide conversion for both signal variants on the one PCB.

The fibre to RS232 Signalling adaptor can provide bi-directional conversion for baud rates upto 9600.

The fibre to Audio & Signalling adaptor can provide conversion for both options on the one PCB.

The fibre to ROLI/RILO signalling adaptor can provide conversion for both signal variants on the one PCB.

The 19" Rack Mounting AS-S12 Shelf is designed to house up to 12 plug in single extended Eurocard Signalling Converters.

The ASS10FD Shelf is of standard 3U 19” construction ready for fitment to a 19” cabinet.

The AS2660 Emergency Handset Unit provides a means of connecting to two independent radio sets from a single handset.

When a call is activated from the AS2710 Hotline 6, the Telephone Alert Beacon (AS2761) can be added in parallel with the remote telephone. This will give a visual display to show that an active call is in progress.

The AS2764 provides a method of switching a beacon, klaxon or other load from a ringing or off-hook telephone line.

The system created by the AS2850/2860 combination is capable of being expanded from a basic 8 channel system to 32 channels in a modular method by adding additional modules with interconnection cables.

The system created by the AS2850/2860 combination is capable of being expanded from a basic 8 channel system to 32 channels in a modular method by adding additional modules with interconnection cables.

The Envoy is a modular Time Division Multiplexer (TDM) which is easily configured for use in a variety of voice and data applications.

The AS2881 Radio Site Switch provides a method of switching speech or tones from any one of five lines to any one of ten equipment ports.

The Fibre Repeater Unit provides a method of regenerating a signal between any two FibTel units. The repeater detects the carrier and any varying pulses widths on the incoming fibre in both directiuons and regnerates it on the opposite transmit path.

The Fibre Repeater Unit provides a method of regenerating a signal between any two FibTel units. The repeater detects the carrier and any varying pulses widths on the incoming fibre in both directiuons and regnerates it on the opposite transmit path.

The AS2950 Line switching Unit provides a method of connecting two 4W E&M devices over any one of two E&M circuits.

The AS2960 ASS10D Shelf is of standard 3U 19” construction ready for fitment to a 19” cabinet.

The AS2970 EOW Handset Interface Unit provides a methof of allowing an inoming and outgoing call to the AS2950 Line Switching Unit.

The fibre to RS232 Signalling adaptor can provide bi-directional conversion for baud rates upto 9600.

The fibre to ROLI/RILO signalling adaptor can provide conversion for both signal variants on the one PCB.

The Hotline 10 unit provides a method of connecting up to ten remote telephones back to a single central control telephone with instant calling being created by lifting the telephone off-hook and selecting the active line key.

The AS3211 RTU provides a method of connecting two extensions from a central comms system (Admin and Control extensions) and communicates over a single AC15 or DC5 (E&M) link to a remote site.

The FibTel Unit provides conversion between Singlemode or Multi-mode to a simple telephone ROLI (FXS).

The FibTel Unit provides conversion between Singlemode or Multi-mode to a simple telephone ROLI (FXS).

The FibTel Unit provides conversion between Singlemode or Multi-mode to a simple telephone ROLI (FXS).

The PIR alarm unit is a small self contained unit for monitoring an area for intruders/activity and reporting back to either a central control or to a warden with a standard GSM handset.

The UNILINK is a basic Hotline unit for connecting two simple 2W telephones over copper cable up to a distance of 6Km.