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Philips SPENDEX 40 Maintenance Manual page 24

Speech encryption decryption equipment

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NATO CONFIDENTIAL

S P E N D E X . 4 0 U A 8 2 5 1 / 0 0 A N D / O l L I M I T E D M A I N T E N A N C E M A N U A L

as a result of which the outgoing and incoming signal channels will

be blocked. The signals BL0K1 and BLOK2 are reset again when the

o n i i i n m p n f D T t P. c ; r » " n h o o k .

equipment goes on hook.

9 9 2 2

1 5 4

1 3 4 3 1

4 - 1 0

NATO CONFIDENTIAL

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8251/00 8251/01