S.T.C. Type 7020
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Used by other telephone administrations S.T. & C. 7020 type of P.A.B.X. A smaller P.A.B.X. equipment known as the 7020 type P.A.B.X., made by the same firm, operates on -the same voltage and will cater for 9 extensions, 1 exchange line and 2 connecting links, or 8 extensions 2 exchange lines and 2 connecting links. This equipment can be mounted on the wall and is very compact.Taken from a paper by the IPOEE dated 1932 (No. 142) |
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Last revised: October 30, 2022FM | ||||||||