ocr: Connector reference 51 5 Autoratic restoration tf=1 th-1 p=1 T4 Pilot off T4 th-0 p-0 Stop T4 Seizure Stop T4 ti=0 55.56 4.5 56 Awaiting, Awaiting pilot on StartT5 tb=1 52 Pilot off Puot on S2lgeized p=0 for. automatic restoration 57 tb=0 42 pilot Awating. on Pilotoff Piloton tb=0 p-0 p=1 55 Clear forward tf-1 StartT1 J Awaiting tb=0 Pilot off tb=0 p=0 32,41 Stop T1 56 CCITT-70011 System R2 line signalling: conversion of version. incoming digital version to outgoing analogue Automatic restoration of the analogue link (Sheet Sof5)
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