C MARKETING INSTALLATION
Issue 1, May 1977
TELEPHONES 706R AND 746R
Description and Facilities
SCOPE OF INSTRUCTION
This instruction describes the Telephones 706R Grey and 746R Grey.
The 706R differs from the 706 in that it is provided with a Switch 5A-3, a Part
5/DBU/263 (recall button) and a Rectifier Element No. 205. These parts are wired to Dgm N806 Fig 3.
The 746R differs from the 746 in that it has a Switch 5A-4, a Part
4/DBU/362 (recall button), a part 1/DPL/1022 (plunger) and 2 Parts 1/DPI/203 (pins),
pre-wired to Dgm N846 Fig 3.
Grey only at present. If other colours are required, provide a Telephone 706 or 746 plus appropriate parts as detailed above.
FIELD OF USE
Direct PBX extension with 2 wire recall. Use as issued.
These telephones should not be used on shared service or when two press buttons are required. In this latter case a telephone 746 ... should be modified to use half width buttons, see Dgm N849.
PBX extensions with 'C' wire signalling. Add parts as follows:-
(a) TO 706R, add a Part
1/DSP/1252 wired to diagram N806 Fig 4.
(b) TO 746R, add a Switch No. 19B-1 wired to diagram N846 Fig 4.
The telephone 706R uses Part
5/DBU/263 and the telephone 746R uses Part 4/DBU/362 both of which are full width, non-locking press buttons, embossed 'Recall'.
These two Parts will not be stocked separately and will therefore provide easy identification of a 706R or 746R from a modified 706 or 746 which will use blank full width press buttons (see diagrams N806 Fig 4 and N846 Fig 4), and may be internally wired for shared service Plan 107 extn etc, instead of two wire PBX recall.
Half Width Button Embossed 'Recall' At stations that require 2 buttons, a plain half width button should be provided for the recall facility, using a standard 766 or 746. This button is a Part
In situations where the use of a plain half width button causes concern, e.g. near another station which has an embossed full width recall button, the half width button may be sent for engraving - see diagram N849 Note D.
RECOVERY AND WIPE UP
Recovered Telephones 706R and 746R should be returned to stores and booked in as Telephones 706R or 746R.
If the telephones are put through the wipe up procedure, the parts that make up the standard 706R and 746R must not be removed. This leaves only extras for 'C' wire signalling to be removed. They should be wiped up and reissued as Telephones 706R or 746R strapped in accordance with N806 Fig 3 or N846 Fig 3.