Sales Brochure - PHME0035

Autodial No. 108, sales name Tyne, has the capacity to store 50 telephone numbers with up to 18 digits, plus access digit and pause for PABX use, i.e. 20 digits, and dial them at the press of one button. It is powered direct from a 9.5 volt ac Plug Top Transformer with a 72 hour memory back up battery charged from the transformer. The Tyne is supplied set for Loop Disconnect dialling, but may be changed by an engineer on site to MF4 signalling by opening the unit and altering the slide switch on the PCB and moving a wire link from terminal NC (Normally Connected - terminal not marked) to NO (Normally Open). The switch is located between the two PCB's at the cord entry end of the unit, is visible and easily accessible.

The wire link (LK2) provides a loop disconnect pulse shaping and bell shunt when set to NC (Normally Connected), and removes this network when moved to NO (Normally Open) to stop tone distortion and attenuation when MF4 signalling is used.

The second link, marked 70/140 indicates the duration of each MF tone in ms. The normal setting is 70, but occasionally, on old type equipment, it may require setting to 140.

To make an outgoing call from Tyne, the telephone handset must be lifted, dial tone received before pressing the required address memory button.

The Autodial 5000 is an Autodial No. 108C (Tyne) with the internal link set to NO (Normally Open) although the slide switch is set for Loop Disconnect pulsing. The Autodial 5000 is approved as issued for use on Ambassador and Senator systems.

If necessary, an Autodial 5000 may be restored to an Autodial No. 108C by removing the base and returning the plug ended wire link to NC (Normally Connected). Any other signalling changes are made as for the No. 108 detailed above.

All four autodials were supplied in Ambassador style cases coloured Stone, Grey and Brown. All the above products have now been withdrawn from the BT portfolio, but the existing base is expected to remain in situ for several years to come.

Made by Sontranic (CHC Group) Ltd

Supplied by BT on both rental and sale terms.

"Grandfathered" Approval. i.e. Approved before 1st October 1981.

Approved as supplied for connection to the Public Switched Telephone Networks (PSTN's) and 2-wire PBX extensions.

Autodial 5000. Approval No. S/1000/3/F/450901 Approved for use on AESS and Senator.

all units must be sited within easy reach of 240 volt ac 13 amp mains supply and a phone socket.


DESCRIPTION                                            		 BT Item Code
Autodial  No. 108C  Stone Tyne                                   374559
Autodial  No. 108C  Grey  Tyne                                   374560
Autodial  No. 108C  Brown Tyne                                   374561
Autodial  No. 5000  Brown (Tyne  with internal link set to NO)   870188
Nickel Cadmium Battery 100 mAh,    3.6 volt PCB mounting         665376
Fuse 73/0.16 (Plug top transformer fuse, not always provided)    314317
Line Jack Unit 10/7A Doubler Jack with Cord.                     374422

When originally introduced in 1983, it was considered the main use of the autodiallers would be as an attachment to PABX extensions. For this reason, the user guide in all cases refers to the autodiallers as having 18 store memories and not 20. The reason for marketing in this manner, was that after the customer has entered the PABX access digit and Pause, they then have 18 usable digits to programme into any memory store.

A unit that displays the symptoms of sending wrong numbers and unable to program is usually caused by a faulty battery.



Storing a number:-

  1. Press and hold down the button marked STO

  2. Press and release the selected address button. Any one of the 50

  3. Use the numbered buttons (right side) to input the desired number. Up to 18 digits. When connected to a PABX that requires a Pause after the Access Digit/s, Press button 'A' once

  4. Release the STO button when the number is stored and write the name or telephone number on panel adjacent to button

Note:- That unless Tyne is set for MF4 signalling at installation, the * and # buttons have no function. There is no soft switching from LD to MF4 by pressing the * button as with most modern equipment.

To call a stored number:-

Lift the telephone handset, wait for dial tone, then press the required address button. The callmaker will then dial the complete number, including for PABX's the access digit for external numbers as appropriate. When the callmaker is dialling out, a visual indication that the unit is working is given by a yellow LED flashing.

If at any time before the call is connected you wish to cancel the call, press the CAN button. This will restore the line to dial tone.

On completing a call, replace the telephone handset.


Reprogramming an address store automatically over writes the previous number. To clear a store, press and keep pressed the STO button, select and press the required address button then release the STO button.

LJU 10/7A cord connections for all autodials is as follows:-

 p         p      6       5       4      3      2      2     1
 2         1                                           A
 9.5 volt ac      Blk     Wht     Grn    Blu    Or     Red   sp.
 power in

Note:- If for any reason all 6 cord conductors are required for through connection such as when used on a PMBX 2/... , then strap terminals 4 & 6 (Black & Green) within the autodial.

Link Setting:-
- NC (Normally Connected) Used for pulse signalling.  Pulse shape & Bell shunt circuit connected.

- NO (Normally Open) Used for MF4 signalling.  Pulse shape & bell shunt circuit disconnected.

- Link 70 / 140.  Set to 70 (MF4 tone duration in ms).  Setting 140 is only required on some old type equipment.

- Slide Switch.  Loop Disconnect Pulsing or MF4 signalling.


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Last revised: April 27, 2023