ITU G.332:1988
ITU G.332:1988 12 Mhz Systems On Standardized 2.6/9.5 Mm Coaxial Cable Pairs
Table of Contents
1Arrangementoflinefrequenciesfortelephony1.1FrequencyarrangementofPlan1A
1.2FrequencyarrangementofPlan1B
1.3FrequencyarrangementofPlan2
2Pilotsandadditionalmeasuringfrequencies
2.1Line-regulatingpilots
2.2Frequencycomparisonpilots
2.3Additionalmeasuringfrequencies
3Hypotheticalreferencecircuit
3.1HypotheticalreferencecircuitforthePlans1A
and1Bfrequencyallocations
3.2HypotheticalreferencecircuitforthePlan2
frequencyallocation
4Designobjectivesforcircuitnoise
5Matchingoftheimpedanceofacoaxialpairandthe
impedancesoftheepeaters
6Relativelevelsandinterconnectioninafrontier
section
6.1Interconnectioninafrontiersection
6.2Relativelevelsinanyelementarycablesection
6.3Pre-emphasis
7Power-feedingandalarmsystems
7.1Powerfeedingacrossafrontier
7.2Power-feedingsystems
7.3Supervisionandalarmsinafrontiersection
8Useof12MHzsystemsfortelevisiontransmission
8.1General
8.2Circuitnoise
8.3Matchingofrepeaterandlineimpedance
8.4Arrangementoffrequenciestransmittedinline
ANNEXA-Frequenciesusedforsupervisionorfault
location
Reference