GPO/PO/BT PUBLICATIONS

The GPO/PO/BT had many publications that make excellent reference sources, some of which are listed below. This is not a complete list - why not advise of the missing ones?

EDUCATIONAL PAMPHLETS
Issued over a number of years and still going strong in 1972 were the Educational Pamphlet series.  Always called the "Draft Series", these papers were distributed to staff who needed more basic knowledge on a variety of subjects.  The instructions for these EP's can be found in TI M6 H0011.

ENGINEERING INSTRUCTIONS (EI)
Phased out when the GPO was split into the Post Office and Post Office Telecommunications in 1969. The Post Office had Postal Instructions (PI) and Post Office Telecommunications had Telecommunication Instructions (TI).
EI's described the installation and maintenance of GPO apparatus, plant, offices, in fact anything connected with the organisation.

TELECOMMUNICATION INSTRUCTIONS (TI)
Introduced on a rolling basis in 1969 the TI range included similar information as in the EI range except that references to Postal information was omitted.

ISIS
Inland Services Information System was a continuation of the TI series. ISIS was not intended to replace the TI system which was phased out as information was deemed redundant.

MAINTENANCE NOTES
Notes issued by the technical support department of each Telephone Region.
Issued in loose leaf style.

PABX MAINTENANCE NOTES
Notes issued by the PABX technical support department of each telephone region.
Issued in loose leaf A4 style.

MAINTENANCE NEWS
A small booklet that was issued on a monthly basis discussing maintenance problems.  Issued nationally.

RG 38
The Traffic Design of Telephone Exchanges
Issued in an EI sized file, this publication describes how traffic is dealt with in all circumstances.

RG 71
Schedules of construction, maintenance and indirect items.
Loose-leaf file describing allocation codes for each type of job.

SALES PUBLICATIONS
The GPO/PO/BT produced many sales publications for telephones, switchboards and telegraph etc. Most of these are in the PH, DL or CP range.

INSTRUCTION LEAFLETS
These were usually a white A5 card with the instructions printed on them. If a lot of information was needed (e.g. switchboard instructions) then a small booklet was produced. These were in the A range which is the standard range for forms, timesheets etc.

Last revised: September 27, 2005

FM