Spectracom SecureSync User Reference Manual page 352

5.4 Time Code Option Cards
The Edit window allows the configuration of the following settings:
Signature Control : Used to control when the IRIG modulation will be present. This func-
tion allows the modulation to stop under certain conditions; see also "Signature Control" on
page 201.
Format : Used to configure the desired IRIG output formatting. The available choices are:
Modulation : Changes the type of output signal modulation. The available choices are:
Frequency : The IRIG modulation frequency. This is determined by the configuration of
Format and Modulation Type. See "IRIG Carrier Frequencies" on page 487 for details.
Coded Expression : Defines the data structure of the IRIG signal, where:
336
IRIG A
IRIG B
IRIG G
IRIG E
NASA-36
IRIG DCLS: TTL-modulated output
IRIG AM: Amplitude-modulated output. The amplitude of the output is determined by
the value entered in the Amplitude field.
BCD = Binary Coded Decimal
TOY = Time of Year
CF = Control Field
SBS = Straight Binary Seconds
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5 SecureSync User Reference Guide Rev. 18